Finding the Weak Link- Movement Screening David A. Hoyle, DPT, MA, OCS, MTC, CEAS National Director of WorkStrategies Select Medical Outpatient Division Family of Brands Sports Medicine Services Learning Objectives Finding the Weak Link- Movement Screening Learners will understand the appropriate use of full body versus regional screening. Learners will be familiar with the common altered movement patterns associated with hip dysfunction. 2 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Hip- Shoulder Analogies Shoulder Hip Rotator Cuff Deficiency leads to arthritis Tendinopathy precedes Rotator Cuff Deficiency leads to arthritis Tendinopathy precedes bursal changes Tendinopathy is usually degenerative Labral tears usually degenerative Significant changes in asymptomatic populations increase with age bursal changes Tendinopathy is usually degenerative Labral tears usually degenerative Significant changes in asymptomatic populations increase with age 3 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle The role of the rotator cuff of the Hip 4 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Introduction to Movement Dysfunction 5 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Who has influenced study of movement dysfunction • Fredrick Matthias Alexander – – • – • John V. Basmajian – – • German born physical education instructor 1883-1967 Your Health: A Corrective System of Exercising That Revolutionizes the Entire Field of Physical Education in 1934, and Return to Life Through Contrology in 1945. 1921-2008 Muscles Alive- Their Functions Revealed by Electromyography- 1962 Vladimir Janda – – Florence Kendall – American Physical Therapist 1911-2006 – Muscles: Testing and Function With Posture and Pain Australian Born (1869) Actor “Man’s Supreme Inheritance”- 1945 Joseph Pilates – • • Shirley Sharman – American Physical Therapist – Diagnosis and Treatment of Movement Impairment Syndromes • Gary Gray – American Physical Therapist – “Lower Extremity Functional Profile”1995 • Gray Cook – American Physical Therapist – Movement- Functional Movement Systems Functional Movement Screen- Czechoslovakian Neurologist 1923-2002 First Book published on muscle function and testing in 1949 – 16 books and 100’s of articles 6 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Development and Motor Control • We are all born with movement synergies (reflexive movement patterns) – – – – – – • • • • ASTNR STNR Grasp Reflex Stepping Refex Startle Parachute We overcome synergies by programming new movement patterns. Motor learning/motor control. Movement screening assesses the motor control that inhibits reflexive movement. In times of stress and maximal effort we tend towards reflexive patterns. As a result of injury or illness motor control can become inhibited resulting in a return to reflexive patterning. 7 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Information Technology • Hardware – Strength – Flexibility • Software – Motor Control 8 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle • Motor Learning • Motor Unit recruitment Screening Performance Based Treatment Based Flexibility Strength Movement Pattern Function Movement Pattern Strength Function Flexibility 9 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Janda Muscle Imbalances Tonic (Prone to Tightness) Phasic (Prone to Weakness) • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Gastroc-Soleus Hip Adductors Hamstrings Rectus Femoris Iliopsoas Tensor Fascia Lata Piriformis Erector-Spinae (thoraco-lumbar) Suboccipital muscles Quadratus Lumborum Pectoralis Major & Minor Latissumus Dorsi Upper Trapezius Levator Scapulae Scalenes Sternocleidomastoid Peroneals Tibialis Anterior Vastus Medialis Vastus Lateralis Gluteus Maximus Gluteus Medius Transversus Abdominus Multifidus Rectus Abominus Abdominal Obliques Serratus Anterior Rhomboids Lower & Middle Trapezius Deep neck flexors 10 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle http://www.muscleimbalancesyndromes.com/what-is-muscle-imbalance/ Janda’s Lower Crossed Syndrome • Lower-Crossed Syndrome (LCS) is also referred to as distal or pelvic crossed syndrome. • Tightness of the thoracolumbar extensors on the dorsal side crosses with tightness of the iliopsoas and rectus femoris. • Weakness of the deep abdominal muscles ventrally crosses with weakness of the gluteus maximus and medius. • This pattern of imbalance creates joint dysfunction, particularly at the L4-L5 and L5-S1 segments, SI joint, and hip joint. • Specific postural changes seen in LCS include anterior pelvic tilt, increased lumbar lordosis, lateral lumbar shift, lateral leg rotation, and knee hyperextension. – If the lordosis is deep and short, then imbalance is predominantly in the pelvic muscles; – If the lordosis is shallow and extends into the thoracic area, then imbalance predominates in the trunk muscles (Janda 1987). http://www.muscleimbalancesyndromes.com/janda-syndromes/lower-crossed-syndrome/ 11 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Janda Muscle Imbalance • With postural/muscle imbalance joints are not in an optimal position. • Muscles also are not in an optimal position. • Example – GH instability – PFPS 12 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle http://www.muscleimbalancesyndromes.com/what-is-muscle-imbalance/ Janda’s Recommended Eval • • • • • • • • History Postural Assessment Balance Assessment Gait Assessment Movement Pattern Assessment Manual Muscle Testing Muscle Length Assessment Soft Tissue Assessment 13 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Posture, Balance, and Gait 14 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Postural Imbalance • Opposing muscle groups affect joint position in an adverse way. – Tightness (hypertonicity) of one muscle(s) and abnormal lengthening (hypotonicity) of it’s reciprical muscle(s). – May cause stress about a joint. • (Iliac tightness and glut med/max inhibition causing SI jt stress) – May cause problems up or down the kinetic chain. • Glut med/min inhibition and TFL hypertonicity causing patellofemoral dysfunction. 15 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Buttock Region • Look at: – Size and Symmetry – Shape • Rounded • Not Hanging or Flattened – sign of inhibition. • Related to – SI jt dysfunction on the ipsilateral side – Ipsilateral hypertonicity of: • Iliacus • Piriformis • Recuts abdominis – Contralateral glut med inhibition/weakness 16 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Thigh • Hamstrings – Hypertrophy with glut max inhibition and ipsilateral thoracolumbar paraspinal hypertonicity. • Adductors – Prox 1/3 • Normal shallow S-Curve • Deep S-Curve or Adductor notch indicates hypertonicity of the one joint adductors (Pectineus) • Associate with – LLD, lateral shift and hip jt dysfunction. – Hip Abductor Weakness 17 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Spinal Extensors • Hypertrophy/Hypertoni city – Weak or inhibited glteals – Poor deep stabilizers – Hyper lordosis • Horizontal Groove – Segmental hypermobility. 18 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Pelvic Tilt/Abdominal Wall • ASIS height – Pelvic Tilt – Anterior • Short Leg – Tight/hypertonic Adductors • ITB tightness • Glut Med weakness • Abdominal Wall – Upper and Lower Quadrants – Left vs. Right • Lateral Rectus Groove – Hypertonic Obliques – Weak Rectus • Lateral Bulge of abdominals – TA hypotonicity • Elevated Rib Cage – Faulty Breathing Pattern. 19 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Quad and ITB • Tightness – Associated with Ant tilt of ilium. – Identified through lateral groove of the thigh. – Associated with weak Glut Med and hip external rotators. – Contribute to a superior lateral shift of the patella. 20 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle High Activation/Hypertonic Muscle • • • • Higher resting muscle tone Lower irritability threshold Inhibits the muscles reciprical muscle. Relaxation of a tight/hypertonic muscle can lead to immediate strength gains of it’s reciprical muscle. • Continuous hypertonicity of one muscle can lead to muscular/postural imbalance. 21 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Evaluation of Movement Patterns 22 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Traditional Testing Strength has traditional been tested: Functional Movements are: • Isometrically • Maximum “Make” or “Break Testing” • Attempt to “isolate” muscle function. • Primary emphasis on force production • Occasionally Isometric but generally dynamic. • Rarely require maximal force. • Never occur in isolation. • Quality and control are often more important than maximal output. • Sequencing of movement and muscle activation determine quality. (0nset and timing) – Grade (0-5 or zero-normal) 23 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Key Observations of Evaluation of Movement Patterns 1. Firing order of muscles 2. Compensatory patterns of movement 3. Initiation of movement as an indication of “motor control”. 4. Comparison of left and right. 5. Muscle trembling is an indication of a lack of control or weakness or fatigue. 24 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Guidelines for Testing • Be able to visualize parts of the body being tested. • Use minimal verbal cues as not to influence movement patterns but rather to reveal “preferred patterns” of movement. • Avoid tactile cueing. • Perform multiple trials in a slow enough manner to reveal control and consistency (3-6 trials). 25 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Recommended Movement Patterns and Strength Assessments Janda’s Six Movements Patterns • • • • • • Hip Extension Hip Abduction Curl-up Cervical Flexion Push-up Shoulder Abduction 26 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Janda’s Six Movement Patterns 27 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Test 1 Hip Extension Movement Pattern Test Purpose- Observe the preferred movement recruitment pattern of the hamstrings, gluteus maximus, spinal extensors, and shoulder musculature. Test- Patient lies prone with arms at side, head neutral, and feet over end of the table in neutral hip rotation. Patient is asked to slowly lift their leg towards the ceiling. Preferred Pattern- hamstrings, gluteus meximus followed by contralateral erector spinae and last ipsilateral eractor spinae. 28 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Hip Extension Movement Pattern Test Typical Abnormal Compensations Over activation of the hamstrings and erector spinae and delayed or absent contraction of the gluteus maximus Worse substitution is when the thoracolumbar extensors or even the shoulder muscles initiate the movement with delayed or absent gluteus maximus contribution. Inability to maintain knee extension is a sign of hamstring dominance. Hyperlordosis and anterior pelvic tilting. Other Considerations Hypertrophy of the hamstrings and thoracolumbar extensors. Atrophy of the gluteus maximus. 29 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Test 2 Hip Abduction Movement Pattern Test Purpose-provides direct information about the quality of the lateral muscular pelvic brace and indirect information about the stabilization of the pelvis in the frontal plane. Test- Pt is sidelying with bottom leg flexed and top leg in a neutral position in line with the trunk. Pt lifts leg toward the ceiling. Preferred Pattern- Hip abduction of 20 degrees without any hip flexion or internal or external rotationwith a stable trunk and pelvis. 30 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Hip Abduction Movement Pattern Test Typical Abnormal Compensations Tensor mechanism substitution- hip abduction is combine with flexion due to the combined action of the Tensor as a hip flexor and abductor. Quadratus Lumborum substitution- Hip abduction is initialted by contraction of the QL before 20 degrees of hip abduction resulting in a lateral pelvic tilt or hip hike. Role of QL changes from pelvic stabilizer to primary mover Other Considerations Tightness of ITB Atrophy of Gluteals Poor results of SLB test. 31 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Test 3 Trunk Curl-up Movement Pattern Test Purpose- Tests the interplay between the iliopsoas and the abdominals. Test- Patient is in supine hooklying. The patient rounds the upper trunk until the inferior angle of the scapula are off the supporting surface. Preferred Pattern- The abdominal muscles contract and shorten falexing the spine and posteriorly tilting the pelvis. 32 | SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Trunk Curl-up Movement Pattern Test Typical Abnormal Compensations Performed preferentially with hip flexion with maintenance of the lordosis and anterior pelvic tilting. Minimal flexion of the upper trunk is noted. Other Considerations Kendall advocated using two tests one for the lower and one the upper abdominals. • Upper abdominals- Upper rectus and internal obliques with curl-up. • Lower abdominals- external obliques and lower rectus abdominals with double leg lowering. 33 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle Single Leg Stance Test Purpose- Test for overall compensatory movements. Test- Patient is standing on one foot with the other foot by the side but not touching the stance leg. Preferred Pattern- The abdominal muscles contract and shorten flexing the spine and posteriorly tilting the pelvis, the shoulders and hips remain over the knees. 34 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle 34 Single Leg Stance Test Typical Abnormal Compensations Stance hip adducts, trunk moves outside the pelvis or opposite hip drops. 35 |SPT SMS-2015 Finding the Weak Link (Movement Screening)-Hoyle