PHYSIOLOGICAL THERAPEUTICS DR. GRANT CRYOTHERAPY DEFINITION: The therapeutic use of cold Ice is inexpensive, readily available to both practitioner and patient and can be used in a variety of forms. CRYOTHERAPY Has relatively few contraindications, and can be very effective in the treatment of pain, edema, spasm and inflammation, especially in the first 24 to 48 hrs after an injury. CRYOTHERAPY In many instances in which heat is considered the modality of choice for its "soothing" qualities, cooling would probably afford longer lasting and more complete results, and therefore should be considered more often. CRYOTHERAPY EFFECTS Anesthesia Analgesia Reduction of edema Reduced Muscle spasm Reduced Spasticity Reduced manual Dexterity CRYOTHERAPY INDICATIONS Acute sprains and strains Acute inflammatory processes Acute trauma Acute and Chronic muscle spasm Spasticity associated with neurological disorders 1 CRYOTHERAPY CONTRAINDICATIONS Caution with geriatrics, infants, and cachexics Individuals with psychological aversion to cold Hypersensitive individuals CRYOTHERAPY APPLICATIONS Ice packs Ice massage Cold compresses Extremity baths HOT MOIST HEAT This is the most commonly used heat modality Transfers heat to the patient primarily by conduction Most common cause for malpractice in physiotherapy today is burns, and they are most frequently caused by hot packs. HOT MOIST HEAT The moist packs should be totally submerged in water to a minimum of 30 to 40 minutes between use to regain their correct temperature (150 -180 degrees F) HOT MOIST HEAT Hot moist heat can be used in conjunction with other therapies. Moist heat vs. dry heat: dry heat causes stiffness. HOT MOIST HEAT EFFECTS Increased circulation to the area being treated. Relaxation Decreased pain Decreased muscle spasm Generalized effect (PR, BP) INDICATIONS Non-acute sprains/strains Sinus conditions 2 Menstrual cramps Arthritis, tendinitis, bursitis, capsulitis Decreasing pain before exercise CONTRAINDICATIONS Acute conditions Patients on anti-coagulants Psychological hysteria or drug dependent Dermatological conditions Diabetic or alcoholic neuropathy Severe vascular occlusions HOT MOIST HEAT Always have patient inform you if hot pack is too hot. Do not use steam packs over cuts or abrasions Do not use heat packs in conjunction with skin balm or liniments. Do not use toweling that is moist from use. PARAFFIN THERAPY Paraffin is essentially hot wax that consists of seven parts paraffin and one part mineral oil Some authorities recommend a 4:1 ratio Purpose of the mineral oil is to lower the melting temperature of the wax. PARAFFIN THERAPY Purpose of the mineral oil is to lower the melting temperature of the wax. Without the mineral oil, the melted wax would be far too hot for therapeutic purposes. PARAFFIN THERAPY Because the paraffin-oil mixture has a low specific heat, it can be applied directly to the skin if the circulation to the part is normal. PARAFFIN THERAPY Before the application, the part to be treated should be cleaned and dried, the thermesthetic sense should be ascertained to be normal, and all jewelry on the part to be treated should be removed. 3 PARAFFIN THERAPY Temperature of the melted wax should be checked with a thermometer, but a finger pretest by the doctor/therapist will even more assure the apprehensive patient that the mixture is not too hot. Paraffin offers the same effects and advantages as any other form of superficial heat that is transferred by conduction. PARAFFIN THERAPY INDICATIONS Primarily indicated for non-acute arthritic joints, especially where there is limited mobility. Bursitis, post fractures, stiffness, sprains, strains, and indurated scar tissue or contractures that limit motion PARAFFIN THERAPY CONTRAINDICATIONS Paraffin should not be used over open wounds, abrasions, acute skin disorders, or where there is diminished sensation. METHODS OF PARAFFIN THERAPY APPLICATIONS When constant heat is required for a long period, two or three hours, the application of the paraffin boot, properly insulated, gives excellent results either by direct or reflex application. PARAFFIN THERAPY METHODS OF APPLICATION Dipping method: After washing and drying the extremity, dip the part in and out of the bath quickly, allow time between dipping for congealing, dip again, and keep repeating until the thickness of the paraffin is from 1/4 inch to 1/2 inch. PARAFFIN THERAPY METHODS OF APPLICATION Depending upon the intended duration of the treatment, wrap the part in wax paper and insulate all around with a towel. When the treatment is completed, remove the paraffin and discard it PARAFFIN THERAPY METHODS OF APPLICATION When dipping hands, keep fingers spread apart. The part treated should now be massaged and passively exercised. The entire treatment usually takes about 20 to 30 minutes. 4 PARAFFIN THERAPY METHODS OF APPLICATION Immersion method: For heat treatments of shorter duration, 10 to 30 minutes, use the immersion method. Dip the part in and out of the bath quickly so that a thin coating of paraffin congeals on the skin. PARAFFIN THERAPY METHODS OF APPLICATION Repeat several times until the glove of paraffin is of sufficient thickness to allow the part to remain in the bath with comfort. Keep the part immersed from 20 to 30 minutes. At the end of the treatment, remove the wax and discard it. PARAFFIN THERAPY METHODS OF APPLICATION Brush on method: To apply paraffin bath heat treatment to parts of the body which cannot be immersed in the paraffin bath conveniently, paint the surface rapidly with a soft paint brush. When first applied, the paraffin will feel very warm, keep brushing until a thick coating covers the area PARAFFIN THERAPY BRUSH ON METHOD Allow it to remain for twenty to thirty minutes. After removal, discard the wax. The part treated should be massaged and passively exercised. THERAPEUTIC ULTRASOUND DR. GRANT THERAPEUTIC ULTRASOUND Therapeutic ultrasound is that which is used for therapeutic (rather than diagnostic) purposes and is usually produced at 1 megacycle or 1 million cycles per second US has replaced diathermy for many types of conditions because it is less time consuming and penetrates tissues well. 5 ULTRASOUND There is less danger of burning It takes only 8-10 minutes It is capable of penetrating 5 cm into the tissues. ULTRASOUND Continuous US causes a thermal effect. The friction caused by the vibration within the patient’s tissues will produce heat. Because US is transmitted by skin and fat, the heat can be directed to the deeper muscle layers where it is needed. PULSED ULTRASOUND The energy is on for a short period of time, then off; alternating so that the "on time" or duty cycle is approximately 5-50% of the total time. The "off time" allow the tissues to disperse the heat created, thereby minimizing or eliminating the thermal effect. PULSED ULTRASOUND With the 5% duty cycle, there is virtually no heating With the 50% duty cycle, some heating occurs. Pulsating US is advantageous when the thermal effect may be detrimental. ULTRASOUND EFFECTS Tissue temperature rise Decreased nerve conduction velocity Increased circulation Increased tendon extensibility Reduced adhesion formation Decreased pain Muscle relaxation ULTRASOUND INDICATIONS Neuromuscular, musculoskeletal disorders Sprains and strains; adhesive capsulitis Arthritic conditions - acute and chronic Bursitis, tendinitis, including calcific tendinitis Neuromas, scars, dupuytrens contracture ULTRASOUND INDICATIONS Plantar warts Hematomas Adhesions 6 PRECAUTIONS Over heating of the cutaneous tissues may occur if the intensity is set too high Transducer is moved too slowly Transducer surface is not kept parallel to the skin surface PRECAUTIONS Over heating of the periosteum may occur if: ~ The transducer is held too close to the bone ~ The intensity is set too high ~ The transducer is moved too slowly CONTRAINDICATIONS Epiphysis of growing bones Over reproductive organs Over a gravid uterus Over the heart Over the eye; over anesthetic areas Over ischemic areas; directly over the spinal column or brain CONTRAINDICATIONS Over a fracture (until well healed) Deep vein thrombosis Arterial disease, hemophilia, malignancy TB of the lungs or bone Over the thoracic region of a patient with a pace maker APPLICATION OF ULTRASOUND Apply coupling medium to the part being treated and place the transducer against the coupling medium. The unit should never be turned on without coupling medium because the crystal may over heat. Keep the transducer moving slowly Turn the intensity up to the desired level APPLICATION OF ULTRASOUND Avoid bony prominences and keep the transducer parallel to the skin as possible The patient may get a mild sense of warmth. If the patient gets too hot, or uncomfortable, the wattage should be reduced to a tolerable level Treat for the desired time US IMMERSION METHOD Good for treating hands, wrists, feet and elbows 7 Place the transducer and the treating part in a container of water Keep the transducer moving slowly and within 1cm of the part being treated. Duration: acute 3-4 minutes; chronic 5-10 minutes SHORT-WAVE DIATHERMY DR. GRANT SHORT-WAVE DIATHERMY Uses high frequency currents to heat the body tissues The heat results from the resistance offered by the tissue to passage of the electric current. SHORT-WAVE DIATHERMY The patient's sensation is an important guide as the regulation of dosage, as it should produce only a mild comfortable sensation of warmth and not a sensation of heat It is imperative that the sensory perception of the patient be normal in the use of diathermy. PRECAUTIONS Remove metallic pins, buttons, and hair Metallic objects must not contact the patient, as they will concentrate the heat and could cause burns. Pins, keys, jewelry, watches and buckles. TEN MAJOR EFFECTS Thermal Stimulation Increased Blood flow Hypotonicity Increase in visceral circulation MAJOR EFFECTS Endocrine changes Oxidation Phagocytosis Detoxification Increase in capillary pressure DOSAGE LEVEL I For patients who have no appreciable specific pain or in the treatment of visceral conditions, gradually increase temperature to where the patient just perceives a comfortable yet distinct sensation of “velvety" warmth. 8 Dosage Level II For patients who have pain, the temperature is increased to a point just below the level of Dosage I. The patient should perceive no detectable sensation of warmth GENERAL RULE The more acute the condition to be treated, the less temperature elevation and the shorter the treatment duration. ELECTRODE POSITIONS The three common electrode positions are: Transverse Longitudinal CO-planar GENERAL RULE The thicker the body part to be treated, the greater should be the electrode -skin distance, which is provided by air spacing or towels. INDICATIONS URI Chronic osteoarthritis Prostatitis CONTRAINDICATIONS Over pregnant uterus Over wet skin Patients with pacemaker Peptic ulcers Rheumatoid Malignancy MICROWAVE DIATHERMY PHYSIOLOGIC EFFECTS The configuration of a pattern is determined and controlled by the distance that it is placed from the patient and the shape of the reflector. The power output of the microwave unit is adjusted in accordance with the size and shape of the body part treated. 9 PHYSIOLOGIC EFFECTS The smaller heat output of a microwave unit warms tissues in a much more local area. There is little penetration into deeper organs. Most of the effects of microwave radiation are due to heating of tissues by conversion. PHYSIOLOGIC EFFECTS The heat build up occurs mainly because of the resistance offered by tissue constituents to high frequency current, and a specific temperature distribution results within body tissues. MICROWAVE DIATHERMY Contact is not necessary, and smaller confined areas can often be treated more effectively. The field that can be heated at any one time is relatively small. Microwave has little, if any effect on deep joints or viscera MICROWAVE DIATHERMY PRECAUTIONS If vigorous heating effects are desired, the applicator must be brought close to the surface of the skin. The applicator should not be brought into contact with the skin. MICROWAVE DIATHERMY PRECAUTIONS Avoid sweat droplets forming on the skin that can be selectively heated. During treatment near the head, the eyes should be shielded with special goggles. Watches must be kept away from the high frequency field, MICROWAVE DIATHERMY PRECAUTIONS Hearing aids must be placed at least 4 feet from the treatment field. The director should be placed from 1-7 inches from the patient depending on the type that is used. TREATMENT DURATION Treatment duration exceeding 2O minutes is inadvisable INTERFERENTIAL THERAPY DR. Grant INTERFERENTIAL THERAPY The name interferential therapy stems from the concept of two currents interfering with each other This becomes readily apparent when one views the four electrodes that are necessary to produce the standard interferential effect in a patient 10 INTERFERENTIAL THERAPY IF is one of a number of electrical stimulation techniques used in modern physiotherapy The common feature of all modalities is the ability to facilitate healing in damaged tissues However, I.F. has a number of advantages INTERFERENTIAL THERAPY Modalities, which are very different, for example, SW diathermy, US, and I.F. may all achieve the same result, but use different mechanisms in so doing. SW diathermy, the mechanism is largely ---------, US achieves facilitation of healing by utilizing a ---------- mechanism INTERFERENTIAL THERAPY In contrast, I.F. facilitates healing by utilizing a bioelectrical effect. Thus, three different modalities, SWD, US, I.F., can achieve similar results, using a different mode of action in each case. INTERFERENTIAL THERAPY The major problems with the standard low frequency currents lie with the resistance offered by the skin and the relatively long pulse duration. Normal human skin has a very high resistance to the passage of a low frequency current. INTERFERENTIAL THERAPY When the skin resistance is high, a larger potential difference (voltage) has to be applied to the skin in order to achieve an adequate current flow in the tissues. The larger the applied voltage, the more likely it is that the stimulus will become uncomfortable for the patient. INTERFERENTIAL THERAPY If the skin resistance is lowered, then a smaller applied voltage will be required to produce a given current flow in the tissues. INTERFERENTIAL THERAPY Little resistance is offered to a higher frequency alternating current INTERFERENTIAL THERAPY The net result is that if the applied current has a higher frequency, the skin resistance will be low, with all the advantages of a more comfortable and efficient stimulation. In addition, the higher frequencies will mean shorter pulse durations and this will lead to a more comfortable stimulus 11 INTERFERENTIAL THERAPY Problems arise, however, that in order to gain the advantages of lowered skin resistance, the frequency of the current used needs to be approximately 4,000 Hz, At this medium frequency the current is well outside the usual biological range of between 0.1 and 200 Hz. INTERFERENTIAL THERAPY If however, two medium frequency sine waves are applied to the skin and tissues in such a way that there is a difference in frequency between the two currents, then a rather interesting effect occurs, This is the basis of the production of I.F. currents. INTERFERENTIAL THERAPY I.F. currents are produced by the interfering of the two medium frequency, alternating currents Two such medium frequency currents, one at 4,000Hz and the other at 4, 100 Hz INTERFERENTIAL THERAPY When these two currents are superimposed on one another, it can be seen that the effect of the blending of these two medium frequency sine waves is a variable increase in amplitude (intensity) of the resultant current. INTERFERENTIAL THERAPY The intensity of the current rises and falls, this is described as a "beating "of the two frequencies. The "beat" frequency is the number of times in each second that the current rises and in intensity to the maximum and falls away to its minimum value INTERFERENTIAL THERAPY The beat frequency in Hz is simply the difference in frequency between the two medium frequency currents. This "beating" is the actual "interferential effect" The beat frequency relates solely to the number of times per second the intensity increases and decreases. 12 INTERFERENTIAL THERAPY The medium frequency (4,000 Hz) is called the carrier frequency The current flowing in the tissues is approximately 4,000 Hz but its intensity is increasing and decreasing (beating) within the range of about 0.1 to 200 times per second. INTERFERENTIAL THERAPY PRE-MODULATED It is possible to deliver I.F. currents to a patient using two, instead of the conventional four electrodes. In this system, the two currents are “'mixed" in the machine and delivered to the patient via two electrodes. INTERFERENTIAL THERAPY PRE-MODULATED There is a significant difference between this technique and the standard method using four electrodes. In the conventional method, the I.F. current is produced endogenously. In the pre-modulated mode however, the actual I.F. currents are applied via electrodes to the patient's skin INTERFERENTIAL THERAPY PRE-MODULATED It is most unlikely that there is any significant clinical difference between the two methods, other than the obvious ease of application of the premodulated method. For many situations, the premodulated mode is probably the method of choice, for example, in muscle stimulation. INTERFERENTIAL THERAPY The average treatment time for most applications being 20 to 30 minutes. On the first treatment session, it is wiser to halve this, in order to ensure that there is no abnormal response from the patient. INTERFERENTIAL THERAPY TREATMENT DURATION There have never been a set number of treatment sessions for any particular clinical problem since all patients and problems are different However, if the overall treatment program has been carefully designed and delivered then good results should be expected fairly quickly. INTERFERENTIAL THERAPY TREATMENT DURATION I.F. like other forms of electrotherapy is meant to be used as an adjunct to other forms of treatment. In most cases, six to ten sessions of I F together with other measures should produce considerable improvement in the patient. 13 INTERFERENTIAL THERAPY There is no point in continuing with a technique which appears to be having no effect If the patient's condition is unchanged after one or two treatments, then the situation needs re-assessing. INTERFERENTIAL THERAPY Assuming that the machine is working correctly and is applied properly, then poor results should indicate possible change in electrode position and/or a change in frequency/intensity. INTERFERENTIAL THERAPY PHYSIOLOGICAL OBJECTIVES Pain relief both acute and chronic Reduction of edema Re-education and strengthening of muscle. Stimulation and improvement of circulation General facilitation of healing INTERFERENTIAL THERAPY I.F. can and should be combined with other modalities. Combining treatments implies giving two different but complimentary treatments at different times or in some instances at the same time (ice, moist heat) Spinal Traction Definition The application of a drawing or pulling force along the long axis of the spine in order to: Stretch soft tissues Separate joint surfaces Separate bony fragments DISTRACTION A form of dislocation in which joint surfaces have been separated without rupture of the binding ligaments and without displacement 14 INVERSION Turning upside-down or other reversal of the normal relation of a part TYPES OF TRACTION CONTINUOUS TRACTION This particular form involves lightweight applied for prolonged periods of time. It is generally accepted that this form is ineffective at producing separation because of the slight force used. This type of traction is generally used to align and stabilize adjacent body parts when there are fractures and/or dislocations. CONTINUOUS TRACTION An example of continuous spinal traction is the halo type device used following a fracture of the cervical spine. It may also be used after certain surgical procedures such as spinal fusions. SUSTAINED (STATIC) TRACTION Sustained traction applies a constant amount of force. Sustained traction is used from only a few minutes to as long as 30 minutes The shorter duration seen with static traction is coupled with a greater traction force than that seen with continuous traction. SUSTAINED (STATIC) TRACTION Static traction is used mostly for WD herniations and may be effectively applied in both the cervical and lumbar spine Sustained traction is probably most helpful in the early phases of treatment when there is significant guarding and muscle spasm present. As the patient's condition improves, intermittent traction may prove to be more helpful. SUSTAINED (STATIC) TRACTION Home cervical traction units (over-the-door) devices are examples of sustained traction. These devices use a traction force that ranges from 5 to 15 pounds Although the forces probably are not great enough to create any significant separation, many patients find these devices helpful INTERMITTENT TRACTION Utilizes a mechanical traction device that alternately applies traction and allows relaxation for a time period of several minutes to one-half hour. INTERMITTENT TRACTION This allows intermittent stretch of soft tissues, joint separation and inhibition of the disc, which can be beneficial for the treatment of soft tissue injuries, joint fixation, nerve root compression, degenerative disc disease, or an acute or chronic herniated disc. 15 INTERMITTENT TRACTION The application of different traction forces that are alternately applied and released (hold/rest). In this form of traction a moderate force is applied for a period of time usually from 30 to 60 seconds. This is referred to as the “hold time" INTERMITTENT TRACTION The moderate force is then reduced to a lesser traction force that is applied for a shorter period from 10 to 20 seconds - the “rest period" The traction device alternates between the two different forces for the treatment duration, thereby producing not only traction and separation, but also some degree of movement. INTERMITTENT TRACTION This is probably the most common type of mechanical traction in current use in the DC's office. It is most often used for joint dysfunction and degenerative disc disease. It can be used for disc protrusions with longer hold/'rest periods (60 seconds hold 20 seconds rest). MANUAL TRACTION Traction applied manually by the doctor. The traction forces usually are applied for a few seconds at a time and, typically, in a rhythmic nature. Although manual traction may often be beneficial by itself, it is often employed prior to other mechanical forms of traction in order to assess the patient's tolerance. MANUAL TRACTION Patients who may be intolerant of manual traction probably will not respond well to more aggressive forms of traction Manual traction may often provide relief for patients with cervical stiffness, disc problems, headaches, and other conditions. The amount of traction applied may vary, depending upon the patient’s condition, the part of the spine being tractioned, and the strength of the doctor. POSITIONAL TRACTION Involves placing the patient in a particular position to increase motion in a specific direction at a specific segment of the spine. Pillows, blocks, and sandbags may be used to accentuate the position and increase traction. These techniques are incorporated into many of the procedures used by McKenzie in his extension protocols for LBP patients. 16 GRAVITY LUMBAR TRACTION This may be achieved by a variety of inversion apparatuses. The patient is secured by the ankles or thighs and allowed to invert in some degree up to 90 degrees. The weight of the upper body is affected by gravity and allows traction of the spine, especially of the lumbar segments. Flexion-Distraction This is achieved with a specialized table on which the patient is placed in a prone position with the ankles strapped to the caudal end of the table. The table is then unlocked, so that the lower half of the table is allowed to flex. By placing cephalad and anterior pressure on the vertebra above the motion segment being treated, very specific distraction is applied to the motion segment involved Flexion-Distraction Many tables can also rotate and/or sidebend they’re lower half, allowing even more specifically therapeutic distraction to the segment. Traction is applied in an intermittent fashion, creating a pumping effect. Flexion-Distraction Flexion Distraction can be a very effective method for the treatment of acute and chronic intervertebral disc protrusion (medial and lateral), facet syndrome, Spondylolisthesis, retrolisthesis, discogenic spondyloarthrosis, anterior or posterior innominate, and sacrum inferiority. Flexion-Distraction Cox, using the flexion-distraction technique, found in 43 cases of medial disc protrusion that 3 responded to this treatment: In 57 cases of lateral disc protrusion, 55 responded to this treatment, alleviating the need for surgery. INTERSEGMENTAL TRACTION Involves the application of mechanical rollers that move up and down vertically as they track longitudinally along the paraspinal structures. The tension, speed, and amount of travel of the rollers are modified to patient comfort. As they move, the rollers lift and separate the vertebral units and exert a mild tractioning effect. INTERSEGMENTAL TRACTION This type of "traction" is more appropriately termed a form of Passive mobility rather than traction. In addition to the application of the mechanical forces, many of the intersegmental traction tables simultaneously incorporate the use of vibration and heat with the mobilization. 17 INTERSEGMENTAL TRACTION The primary benefit of intersegmental traction is seen in patients who are stiff, tight, and generally tense. This is a very gentle form of therapy that affects whole segments of the spine. In addition to any mild effect that this procedure may have on the movement of the spine, it is very comfortable and relaxing. INTERSEGMENTAL TRACTION Intersegmental traction meets with high patient acceptance; consequently, it is overused in many practice situations As with all other forms of therapy, Intersegmental traction should be provided to those patients who will benefit from the procedure. It should not be a routine part of the treatment of every patient. EFFECTS Suction: A subatmospheric pressure is created when two vertebrae are pulled apart, causing a centripetal force on the disc. Distraction: The distance between the articular surfaces increases with sufficient traction. Ligamentous tautening: The anterior and posterior longitudinal ligaments are stretched, causing further centripetal force on the disc. EFFECTS Relaxation of the musculature: Cyriax reported EMG silence 3 minutes after continuous traction. Widening of the IVF Straightening of the spinal curves. INDICATIONS IVD protrusions Facet syndrome Nerve root compression Spondylolisthesis Retrolisthesis Discogenic spondyloarthrosis Muscular spasm 18 INDICATIONS Anterior or posterior innominate Sacral inferiority Early scoliosis PRECAUTIONS It should be borne in mind, that traction is usually not the only therapy used. As with other forms of therapy, when it is used the doctor should be alert to changes in the patient's condition that warrant modification in treatment methods. PRECAUTIONS It is particularly important to keep in mind the following rule. - If treatment increases peripheral pain and/or symptoms, it should be discontinued until both the condition and the therapy have been re-evaluated PRECAUTIONS To minimize any potential injury resulting from inappropriate use of traction (e.g.. too much weight or improper patient position), traction should be initiated gently, with progressively increasing force and time as the patient condition warrants. PRECAUTIONS Following the application of traction, a patient should be allowed a short rest period before resuming activities. It is not uncommon for patients to feel some pain relief during the application of traction, only to have the relief disappear at tile end of tile treatment session. It is suggested that the patient should be gradually returned to the upright position to maintain relief. CONTRAINDICATIONS Structural disease secondary to tumor or infection Vascular compromise, hypertension, atherosclerosis, phlebitis, angina, and a history of stroke or transient ischemic attack. Acute sprains, strains, and other musculoskeletal inflammatory processes. Pregnancy Instability CONTRAINDICATIONS Osteoporosis and other bone-weakening conditions Hiatal hernia Ankle, knee or hip joint dysfunction Patients with aortic aneurysms Patients with active peptic ulcers Patients who are claustrophobic 19 CERVICAL TRACTION Maximum separation of the cervical vertebrae occurs when the cervical spine is flexed to 25 to 30 degrees except for the atlantoocccipital and atlantoaxial joints, which should be tractioned with a 0 degrees angle of pull. Research has shown that supine traction is superior to sitting traction. CERVICAL TRACTION It is particularly important that patients are able to relax Consideration must be given to the effect of the traction device on the TMJ In order to produce a desired effect the traction force must be great enough to effect a structural change at the spinal segment Much less force is required for the cervical region CERVICAL TRACTION PROPER POUNDAGE Forces of 25 to 45 pounds are necessary to produce measurable changes in the posterior structures. The maximal force should not exceed 45 pounds Forces of 120 pounds have been shown to be necessary to cause a disc rupture at the C5-C6 level CERVICAL TRACTION PROPER POUNDAGE It has been shown that a traction force of only 10 pounds will produce a separation of the atlantoaxial joints; consequently less force is necessary when the upper cervical spine is the target area. CERVICAL TRACTION PROPER POUNDAGE For the safe and effective application of traction to the cervical spine: It is suggested that the doctor begin with a traction force of between 10 and 15 pounds If the patient improves, continue at the same poundage or increase poundage by 5-pound increments to a maximum of 45 pounds. CERVICAL TRACTION PATIENT POSITION Positioning of the patient has a direct effect on the location of the traction effect: If the head is allowed to lay on the table with the cervical spine in a neutral or extended position, the traction will exert its maximal effect on the anterior intervertebral structures such as the IVD. CERVICAL TRACTION PATIENT POSITION When the objective is separation of the interbody joints, the patient should be positioned in such a neutral or extended position. If the head is maintained in a flexed, forward- bent position, the traction will exert its maximal effect on the posterior structures, such as the facet articulations and the WF. 20 CERV1CAL TRACTION PATIENT POSITION When the objective is separation of the posterior articulations, the patient should be positioned with the neck in a flexed position. The greater angle of flexion, the lower in the cervical spine is the area affected by the traction force. CERVICAL TRACTION PATIENT POSITION The position of the head and neck can be adjusted to ensure that separation occurs at the desired location. This is most easily accomplished by communicating with the patient during the initial application. The best position is the one that localizes the traction force in the area of pain. CERVICAL TRACTION ANGLE OF PULL It is suggested that an angle of 0 to 15 degrees be used for the upper cervical spine. The angle should be increased by 5-degree increments for each progressively lower cervical segment Both the angle of pull and the position of the head have a similar effect in changing the location of the traction forces. CERVICAL TRACTION DURATION Traditionally, spinal traction is applied in 20-minute increments Treatment times may vary depending on the nature of the condition, the type of equipment used, and the response of the patient. CERVICAL TRACTION TREATMENT FREQUENCY As with other forms of therapy, spinal traction has a specific physiologic effect and should be used when that effect is desired. The application of sustained and intermittent traction is usually only warranted for relatively short periods of time. CERVICAL TRACTION TREATMENT FREQUENCY Daily treatment is suggested for the first 3 days, followed by three times weekly for 2 to 3 weeks If traction is to be helpful, some relief should be seen within the first three to five treatments. CERVICAL TRACTION TREATMENT FREQUENCY Unlike other forms of traction, intersegmental traction may be warranted on a continuing basis in some patients. It should not, however, serve as a substitute for stretching and flexibility exercises, nor should it be used as a standard procedure for all patients seen. 21 LUMBAR TRACTION There is a great variation in the methods used to apply traction to the lumbar spine. Traction node (sustained or intermittent) depends on both the disorder being treated and on the comfort of the patient. Disc protrusions usually are treated more effectively with sustained traction or with longer hold-rest periods of intermittent traction (60 seconds hold, 20 seconds rest). LUMBAR TRACTION Joint dysfunction and degenerative disc disease usually respond to shorter hold-rest periods of intermittent traction (30 seconds hold, 10 seconds rest) LUMBAR TRACTION PROPER POUNDAGE Begin with approximately 50 pounds If the patient improves, continue at the same poundage or increase poundage by 10-pound increments to a maximum of 125 pounds. LUMBAR TRACTION PATIENT POSITION The patient position, whether prone or supine, and the amount of flexion or extension used depend on the disorder being treated, on the experience of the doctor, on the comfort of the patient, and on the type of equipment being used. LUMBAR TRACTION ANGLE OF PULL To treat lumbar conditions the proper angle of pull is between 15 and 50 degrees To affect the lower thoracic and upper lumbar segments (L1 -L3); the angle of pull must be 15 to 30 degrees To affect the lower lumbar segments (L3 -L5); the angle of pull must be 30-50 degrees. LUMBAR TRACTION ANGLE OF PULL Hypolordosis of the lumbar spine should be treated with an angle of pull from 15 - 30 degrees. Hyperlordosis should be treated with an angle of pull from 30 to 50 degrees. The lower in the lumbar spine the traction is intended, the greater the angle of pull. 22 MICRO CURRENT THERAPY DR. GRANT MICRO CURRENT THERAPY This modality utilizes an electrical current less than 1 miliamp in amplitude. The current is measured in the microamperage range. Unlike the current produced by the classic electrical stimulators, such currents are inadequate to depolarize the sensory or motor nerves. MICRO CURRENT THERAPY The micro currents are "subthreshold" in nature The mode of action of these currents, therefore, must also be different. These subthreshold currents produce the following effects: MICRO CURRENT THERAPY EFFECTS Changes in cell wall permeability Increased intracellular concentration of Ca. Increased ATP production Increased protein synthesis Increased fibroblast activity MICRO CURRENT THERAPY The most widely accepted view concerns the effect these small currents have on the cell membrane. It is generally accepted that microamperage current produces two important effects: 1. "Opens" voltage sensitive ion channels in the cell membrane 2. Increases the intracellular concentration of Ca and Na ions Damaged tissue releases a variety of pain producing substances including arachidonic acid Arachidonic acid, in turn, is used in the synthesis of prostaglandins and is associated with the production of histamine and bradykinins. MICRO CURRENT THERAPY Each of these substances can stimulate nociceptors and are all involved in the inflammatory response. Many methods are used to modify this process: 1. Stimulation of sensory nerves 2. Release of pain-blocking substances such as beta-endorphins 3. Chemical agents (pharmaceuticals) that interfere with the process 23 The most permanent approach to relieving pain would be to stimulate the intracellular mechanisms that would repair the damaged membranes that are responsible for the leakage of the pain-blocking agents. MICRO CURRENT THERAPY It is postulated that microamperage stimulation functions to repair the injured cell membrane which, in turn, leads to a reduction of pain. Perhaps the most troubling area in the use of microamperage stimulation devices is the lack of understanding and uniformity of stimulation parameters. MICRO CURRENT THERAPY To date, selection of appropriate parameters (frequency, intensity, pulse width, duration of treatment, etc.) are largely based on empirical observations and clinical experience. It does appear that the following represent reasonable suggestions based on the available data. MICRO CURRENT THERAPY Direct current is preferred due to the fact that it has a polarizing effect. Polarity - this may be the most crucial factor. It is generally accepted that a positive current is most useful in the early phases of treatment and a negative current in later phases. MICRO CURRENT THERAPY Pulse width - in order to make the stimulus sufficient to change the cell membrane potential, it appears that a relatively long pulse width is necessary. Pulse widths vary from 50 microseconds to as long as .5 seconds. MICRO CURRENT THERAPY Frequency - Acupunture point stimulation appears to be most effective at low pulse rates, between 1-5 Hz. Pulse rates with microcurrent stimulation devices range from .5 per second to several hundred per second. MICRO CURRENT THERAPY It is suggested that lower pulse rates are used for chronic conditions and higher pulse rates for more acute problems. MICRO CURRENT THERAPY POINT STIMULATION Although microcurrent probe technique requires the active participation of the doctor or therapist, many believe that pain relief and an increase in joint range of motion can be accomplished in far less time than needed for other electrotherapy modalities. 24 MICRO CURRENT THERAPY PROBES Typically, the initial stage of treatment uses a hand-held probe that is either a solid blunt probe or a probe with a moistened cotton swab inserted within the hollowed tip of the probe. When used with a conductive lotion, metallic portions of cylindrical probes can be used as a roller massager. MICRO CURRENT THERAPY Many doctors are familiar with acupoints, motor points, and trigger points and are experienced in their electrostimulation. Once these points are isolated, the current is set to a subsensory level and the points are stimulated. MICRO CURRENT THERAPY NERVE ROOT TECHNIQUE In this method, both probes are used to stimulate adjacent interspinous spaces of involved vertebral segments for 12 - 20 seconds. Significantly enhanced pain control and improved segmental ROM have been reported when using this technique. MICRO CURRENT THERAPY Enhancing restricted joint motion has been reported to be highly effective when combined with passive mobilization of the involved joint. Results are typically greater than when passive exercise is used alone to increase joint ROMs MICRO CURRENT THERAPY PAD TREATMENT When pads are used, placement is proximal and distal to the site of involvement. MICRO CURRENT THERAPY INDICATIONS Pain Tissue healing, including decubitus ulcers Several microamperage stimulators are being used for the treatment of acute and chronic sports injuries because of their analgesic, anti-inflammatory, and healing properties MICRO CURRENT THERAPY CONTRAINDICATIONS Demand - type cardiac pacemakers Over the carotid sinus Over the eyeball or eyelid Safety and effectiveness of microamperage stimulators have not been established in pregnancy; avoid the stimulation of any area that might affect the pregnancy. 25 LOW VOLTAGE GALVANIC DR. GRANT LOW VOLTAGE THERAPY Galvanic current allows stimulation of deinervated muscle as well as the possibility of driving ions into the tissues called iontophoresis. A galvanic current is a unidirectional (monophasic) current flowing for an indefinite duration. LOW VOLTAGE THERAPY Low frequency alternating currents are utilized because of the continued need for electrical stimulation of atrophied muscle, especially for patients with CNS lesions. LOW VOLTAGE THERAPY Low frequency alternating current: a current in which the direction of electron flow changes at a rate between l and 2000 Hz. Sine wave: a low frequency alternating current that takes the shape of a sine curve LOW VOLTAGE THERAPY Faradic current: a low frequency alternating current with 2 unequal phases The iontophoresis effect is not frequently used. LOW VOLTAGE THERAPY IONTOPHORESIS On the principle that like charges repel and opposites attract, ions of various substances are placed under their similar polarity electrode and driven through tissues by currents usually less than 5 mA. Copper sulphate, sodium chloride, lidocaine and a corticosteroid LOW VOLTAGE THERAPY EFFECTS Contraction of innervated muscle Pain relief Edema reduction 26 LOW VOLTAGE THERAPY INDICATIONS Stimulation of weak and/or atrophied muscles Nonsystemic edema LOW VOLTAGE THERAPY CONTRAINDICATIONS Through the brain, heart or eyes Over bony prominences Fractures Skin lesions Malignancy Anesthetic areas Over a gravid uterus LOW VOLTAGE THERAPY APPLICATION Place pads firmly on treating parts; can use hot packs, cold packs, for combination therapy. Quadrapolar or bipolar technique may be used. If unequal sized pads are used, the smaller pad will produce a greater effect. LOW VOLTAGE THERAPY APPLICATION A probe may be used for specific stimulation of motor points. Set mode to: Pulse, if a gentle treatment is desired, to avoid further trauma or to disperse fluid. Set mode to: Surge, if a series of muscle contractions is desired (e.g. for muscle re-education) 27 LOW VOLTAGE THERAPY Set mode to: Tetanize, if a tetanic contraction is desired to fatigue the muscle (e.g.. for muscle spasm or muscle tension) Choose the pulse width, "on ramp" time, and/or "off ramp time. Set the timer to desired time LOW VOLTAGE THERAPY Increase the intensity slowly to patient tolerance or until the desired muscle contraction is achieved. Treatment duration depends on the effect desired and the integrity of the muscle being stimulated LOW VOLTAGE THERAPY Dr. Kots of the Soviet Union has suggested the following times: To increase circulation: 2 sec on, 2 sec off To reduce spasm and pain: 12 sec on, S sec off For strength, endurance, and velocity: 10 sec. on, 50 sec. off TENS DR. Grant TENS TENS should apply to any form of electrical stimulation that is applied via surface electrodes. The term has been used for small portable stimulators that can be attached to the belt or clothing and used for various time periods for the relief of pain. TENS In general the primary effect of TENS is the relief of pain. Many health practitioners are finding TENS to be an effective, safe, noninvasive, and cost effective method of treating acute, chronic and psychogenic pain of innumerable origins. 28 TENS INDICATIONS Chronic pain Acute pain Intractable pain (TENS can provide adequate relief of pain secondary to malignancy. Results are best with trunk and extremity pain and worst with pelvic and perineal pain. TENS INDICATIONS Rehabilitation: The use of TENS for the reduction of pain during rehabilitation can increase performance and shorten disability. Care must be taken to not allow the TENS to obliterate pain to the extent that the patient loses protective cues and overstresses the part being rehabilitated. TENS CONTRAINDICATIONS Pacemakers Carotid nerve stimulation Laryngeal stimulation During pregnancy TENS ELECTRODE PLACEMENT Electrode placement is one of the most critical factors for the success of TENS Directly over or around the painful site Over trigger points Over acupuncture points Within a specific dermatome At the site of the corresponding nerve root 29 TENS The most significant complication of TENS is local skin rashes produced by the conduction gel or tape. TENS There are no contraindications to 24-hour use of "high TENS". "Low" TENS, however, should be used only 30-40 minutes at a time, as "Low TENS" causes muscle contraction and may cause soreness if used for longer periods. TENS Electrodes should be removed every day or two to clean the skin and inspect the area. FOOT ORTHOTICS DR. GRANT DIAGNOSTICS How is it that one determines whether orthotics would benefit a patient? The doctor can make a preliminary decision oftentimes based upon the history of the patient's complaints. But the doctor must also collect data from two other sources DIAGNOSTICS 1. A leg and foot examination, which may 2. Observation of the patient's shoes HISTORY Complaints of tired feet, calves, or low back pain at the end of the day should arouse the doctor's suspicions of excessive pronation. The patient who complains of knee pain when climbing stairs or walking downhill may be a prime candidate for orthotics In addition, those who participate in recreational activities often need the support of a flexible orthotic. EXAMINATION OF THE LEG AND FOOT Observation of the patients as they walk to and from the examination While relaxed and unaware that they are being watched, patients will reveal their normal gait. watch for foot flare, pronation, and leg length discrepancies 30 EXAMINATION OF THE LEG AND FOOT Check the position of each parallel by marking the middle of each patella. Place a finger on each malleolus (medial) Invert and evert one foot and demonstrate position change in the malleolus. Repeat the inversion and eversion of the foot a number of times and note the medial rotation of the knee. EXAMINATION OF THE LEG AND FOOT Also note the everted foot with the resulting lowering of the arch more on one side than the other can well be the cause of an apparent short leg as visualized on x-ray. A comprehensive inspection of overall posture deviations is a must. EXAMINATION OF THE LEG AND THE FOOT Observation of the Achilles tendon for deviation inward or outward helps to define pronation or supination EXAMINATION OF THE LEG AND FOOT Excessive pronation can be easily demonstrated by observing the patient's relaxed stance from the posterior and detecting any eversion of the calcaneous, which is seen in excessive pronation. Note the circulation in the feet While the patient is standing, look for localized redness of the inner dorsal area. EXAMINATION OF THE LEG AND FOOT Apply pressure to different areas of the reddened area to determine blanching time. Now have patient roll his feet to the outer border, allowing the depressed arch to normalize. Apply pressure again to test blanching time EXAMINATION OF THE LEG AND FOOT Excessive pronation of the foot will result in the internal rotation of the hip. This results in the psoas and abductor tendons being under greater tension. This causes a biomechanical dysfunction of these muscles and they will be weak upon manual muscle testing. EXAMINATION OF THE LEG AND FOOT Perform the Psoas Test and the Abductor Test. The abductors will be weaker on the 'weak psoas" side. Follow the psoas and abductor tests with the tape tests. The tape test will demonstrate increased muscle strength with proper arch support/foot balance. 31 EXAMINATION OF THE SHOES Patients' shoes demand your attention and deserve a routine place in your examining procedure. Take a moment to investigate the shoes your patient wears. Observe their condition. If the shoe isn't properly fitted and of proper shape, foot activity is impaired and the gait is altered. EXAMINATION OF THE SHOES Poor foot function can have far reaching effects on the entire body. Knees, hip, pelvis, and even the entire spine can be distorted and placed under stress and strain. Shoes are made in a multitude of styles and shapes. EXAMINATION OF THE SHOES Look to the heels. Are they run down on the lateral side? They indicate that the patient walks with foot flare and that the foot pronates. The shoe fitting around the heel is the "counter" Normally, they will be perpendicular to the floor. EXAMINATION OF THE SHOES The heel counters of those who pronate can lean toward the midline, and those who supinate can lean outward Both of these conditions can be helped by the addition of orthotics. Next consider the shoe fit. The large toe joint or ball of the foot should rest at the widest part of the shoe. EXAMINATION OF THE SHOES When palpating the ball of the foot, if you find it closer to the toe of the shoe, the shoe is too short. Seldom will you find the shoe too long. Finally, test the strength of the shank of the shoe. Apply pressure to the inner part of the shoe slightly anterior to the heel. EXAMINATION OF THE SHOES If the shoe easily bends under this pressure, the shank is weak and therefore does not support the foot well. This leads to the likelihood of pronation. 32 When you observe a distorted shoe, you know the foot has a poor foundation. As a result, the osseous structures above are affected. EXAMINATION OF THE SHOES Muscles are placed under stress to overcome the poor pedal foundation and muscle imbalance results. Your adjustments cannot hold as they would if not subjected to this additional stress. EXAMINATION OF THE SHOES The relationship of foot function to total body function is well known, the biomechanics of the foot are altered by foot imbalance and the most common finding is that of pronation. BENEFITS OF FLEXIBLE ORTHOTICS Some have assumed that the more rigid the orthotic the more control it would afford The problem is that it does not permit adequate biomechanical motion. The result of this decreased mobility at the ankle is compensatory joint hypermobility somewhere above the ankle. BENEFITS OF FLEXIBLE ORTHOTICS Spinal biomechanics necessitates control but requires adequate motion. Postural foot alteration produces and maintains far-reaching effects, both in spinal and pelvic distortions, as well as distant bodily disturbances. BENEFITS OF FLEXIBLE ORTHOTICS The importance of some of these changes is often overlooked, with the result that symptoms referred to other parts of the body continue because their cause being in the feet is not recognized, so it is never removed. BENEFITS OF FLEXIBLE ORTHOTICS It is generally found the vast majority of patients have some degree of internal or external rotation of the feet. Some will have local symptoms in the form of corns, calluses, bunions, neuralgias, and altered circulation Others demonstrate general symptoms in the form of leg cramps, knee pains, hip pains, and numerous spinal distortions. BENEFITS OF FLEXIBLE ORTHOTICS Many complain of cervical tension, mid-thoracic and/or low back pain, sciatica and just plain fatigue. The feet are not the cause of all problems, but imbalanced plastic deformation involving the arches certainly contribute to the stress on the overall human frame. 33 BENEFITS OF FLEXIBLE ORTHOTICS The chiropractor is not just confronted with a spine in clinical practice, but an entire skeletal structure. BENEFITS OF FLEXIBLE ORTHOTICS According to a survey of 500 cases of low back pain, approximately 85% were due to the faulty posture complex arising from the loss of the structural integrity of the dynamic inter-relationship of the spine to the pelvis, the pelvis to the legs, and the legs to the feet. BENEFITS OF FLEXIBLE ORTHOTICS One cannot distinguish the lower extremity and foot complex from the upper part of the body. Literally speaking, the feet are the initial support of the weight-bearing human frame. SPINAL TRACTION Dr. Grant Spinal Traction Definition The application of a drawing or pulling force along the long axis of the spine in order to: Stretch soft tissues Separate joint surfaces Separate bony fragments DISTRACTION A form of dislocation in which joint surfaces have been separated without rupture of the binding ligaments and without displacement INVERSION Turning upside-down or other reversal of the normal relation of a part TYPES OF TRACTION Static traction which is used for several minutes to several hours at a time for the purpose of immobilizing a part and allowing soft tissue to relax Hospital setting Home use INTERMITTENT TRACTION Utilizes a mechanical traction device that alternately applies traction and allows relaxation for a time period of several minutes to one-half hour This allows intermittent stretch of soft tissues, joint separation and inhibition of the disc, which can be beneficial for the treatment of soft tissue injuries, joint fixation, nerve root compression, degenerative disc disease, or an acute or chronic herniated disc. 34 MANUAL TRACTION Traction applied manually by the doctor. The amount of traction applied may vary, depending upon the patient’s condition, the part of the spine being tractioned, and the strength of the doctor. Belts, towels, or harnesses may be used to increase the mechanical advantage of the doctor and leave the hands free for palpation of the affected area. POSITIONAL TRACTION Involves placing the patient in a particular position to increase motion in a specific direction at a specific segment of the spine. Pillows, blocks, and sandbags may be used to accentuate the position and increase traction. INVERSION THERAPY This may be achieved by a variety of inversion apparatuses. The patient is secured by the ankles or thighs and allowed to invert in some degree up to 90 degrees. The weight of he upper body is affected by gravity and allows traction of the spine, especially of the lumbar segments. FLEXION-DISTRACTION This is achieved with a specialized table on which the patient is placed in a prone position with the ankles strapped to the caudal end of the table. The table is then unlocked, so that the lower half of the table is allowed to flex. By placing cephalad and anterior pressure on the vertebra above the motion segment being treated, very specific distraction is applied to the motion segment involved Many tables can also rotate and/or sidebend they’re lower half, allowing even more specifically therapeutic distraction to the segment. Traction is applied in an intermittent fashion, creating a pumping effect. Flexion-distraction can be a very effective method for the treatment of acute and chronic intervertebral disc protrusion (medial and lateral), facet syndrome, Spondylolisthesis, retrolisthesis, discogenic spondyloarthrosis, anterior or posterior innominate, and sacrum inferiority Cox, using the flexion-distraction technique, found in 43 cases of medial disc protrusion that 3 responded to this treatment: In 57 cases of lateral disc protrusion, 55 responded to this treatment, alleviating the need for surgery. 35 EFFECTS Suction: A subatmospheric pressure is created when two vertebrae are pulled apart, causing a centripetal force on the disc. Distraction: The distance between the articular surfaces increases with sufficient traction. Ligamentous tautening: The anterior and posterior longitudinal ligaments are stretched, causing further centripetal force on the disc. Relaxation of the musculature: Cyriax reported EMO silence 3 minutes after continuous traction. Widening of the WF Straightening of the spinal curves. INDICATIONS IVD protrusions Facet syndrome Nerve root compression Spondylolisthesis Retrolisthesis Discogenic spondyloarthrosis Muscular spasm INDICATIONS Anterior or posterior innominate Sacrum inferiority Early scoliosis CONTRAINDICATIONS Structural disease secondary to tumor or infection Vascular compromise, hypertension, atherosclerosis, phlebitis, angina, and a history of stroke or transient ischemic attack. Acute sprains, strains, and other musculoskeletal inflammatory processes. Pregnancy Osteoporosis and other bone-weakening conditions Hiatal hernia Ankle, knee or hip joint dysfunction CERVICAL TRACTION Maximum separation of the cervical vertebrae occurs when the cervical spine is flexed to 25 to 30 degrees except for the atlantoocccipital and atlantoaxial joints, which should be tractioned with a 0 degrees angle of pull. Research has shown that supine traction is superior to sitting traction. 36 MASSAGE THERAPY MASSAGE Certain manipulations of the soft tissues of the body; these manipulations are most effectively performed with the hands, and are administered for the purpose of producing effects on the nervous and muscular systems and the local and general circulation of the blood and lymph. EFFECTS Mechanically assisting the flow of blood and lymph to increase circulation and reduce edema Maintenance of muscle flexibility and viability Breaking up scar tissue, adhesions, and fibrosis Sedation Stimulation CONTRAINDICATIONS Acute circulatory disturbances Acute inflammation Malignancy Edema secondary to heart decompensation, kidney disease, embolus, obstruction of lymph channels, thrombus Hyperesthesia of the skin Communicable disease SPECIFIC METHODS Effleurage - stroking motion and begin with light pressure and progress to heavier pressure as tolerated and terminate with light pressure. Petrissage - Kneading or rolling motion, strokes are either in a centripetal direction or transverse to the muscle fibers SPECIFIC METHODS Rolfing - is a deep massage that strives to separate the fascia between muscles Friction is used to break up superficial and/or deep adhesions of muscle or other soft tissues. No lotion is used and small circular or linear strokes are used to loosen the tissue beneath the skin. SPECIFIC METHODS Transverse friction - is a specific type of friction massage that is used to treat tendinitis or tenosynovitis. It is performed perpendicular to the tendon sheath, causing the tendon to separate from the sheath and slide through it more easily. SPECIFIC METHODS Tapotement - includes tapping, slapping, cupping motions. It is useful for increasing circulation to an area and for postural drainage to increase the release of abnormal secretions from the lungs. 37