IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Videos and Links o http://wn.com/muscle_contraction_contractions_by_muscle_type General Muscle Overview http://web.mit.edu/tkd/stretch/stretching_toc.html#SEC6 Types of Muscle Contraction http://www.athleticquickness.com/musclecontractions.asp Analysis of Movement http://www.jroscoe.co.uk/download/tryouts/AQAAS_ch3.pdf Anatomy Zone http://www.youtube.com/channel/UCR9m1bxGaw3Ubrap34U-yDA The Rotator Cuff http://www.youtube.com/watch?v=SfUmN_V-28w Women can and should get strong. Since the admission of women to West Point in 1976, for example, that institution has had several women graduates who could perform more than 100 straight-back push-ups (the so-called “male push-up”) in two minutes, including one woman in 1990 who did 132 push-ups in two minutes (CSS, 2012). A Refresher for 1.1.10: Types of Synovial Joints Identify six types of synovial joints and provide one example in the human body for each. Type of Joint Hinge Joint Ball and socket Pivot Saddle Condyloid Gliding Example(s) in the Human Body IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Investigation 1: JOINTS IN ACTION During most physical activity, the knee joint plays a vital role in movement. 1. Describe how the anatomical structures of the knee joint protect and stabilise the joint. Answer 2. Observe the action pictures in Figure 1.3. Name the types of synovial joint located at the knee and hip of the swimmer and basketball player. Analyse the movement patterns happening at these joints. Answer Figure 1.3 Swimming and basketball actions 3. What factors determine the degree of movement at joints? Answer 4. Identify and categorise four joints that are involved in the arm action of the tennis serve. Answer IB Sports, Exercise and Health Science 4.2.1 Topic 4.2: Joint and Movement Type Outline the types of movement of synovial joint Table 1 Movement Flexion Extension Adduction Abduction Pronation Supination Inversion Eversion Dorsiflexion Plantarflexion Description Application IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Investigation Working with a partner, locate the joints identified in Table 1.2 and identify the joint type. Place a tick in the appropriate boxes relevant to the movement patterns for each of the joints listed. Table 1.1 Joint analysis 2. Define circumduction and, using the information in Table 1.2, list the joints where this can occur. Answer Eversion Wrist Radio ulnar Elbow Shoulder Shoulder Girdle Hip Knee Ankle Inversion Dorsiflexion Plantar flexion Depression Elevation Pronation Supination Rotation Adduction Abduction Joint type Extension Joint Flexion C = cartilaginous S = synovial IB Sports, Exercise and Health Science 3. Topic 4.2: Joint and Movement Type Identify the movement patterns performed at the joint sites listed for the following physical activities: Sit and reach test: abdomen area, hip. Answer Step up onto a bench: knees, hip. Answer a. Basketball shooting: wrists, elbows, shoulders. Answer Design an Animation OK, now your task is to design an animation which educates people (PE students especially) about movement types. The way you’re going to do this is by setting up a free account on the animation desk’ website and follow the instructions from there. Your website must include all the movements from the table (if possible), it must give sporting examples and of course it would help if it was entertaining!! Good luck! HERE IS ONE ON YOUTUBE THAT WAS DONE QUICKLY. YOUR’S SHOULD BE MILES BETTER! IB Sports, Exercise and Health Science 4.2.2 Topic 4.2: Joint and Movement Type Outline the types of muscle contractions (Please read below carefully) When we think of a muscle contracting normally, we tend to think of the muscle shortening as it generates force. While it's true that this is a way of muscle contracting, there are many different ways that a muscle can generate force. Have you ever tried to pick something up that was really heavy, only to find out that you couldn't lift it? Or, how about, have you ever pulled on something, like a door handle, but didn't open it? In these situations, you contracted muscles and created tension, but the muscle did not shorten. The shortening of the fibers creates mechanical force, or muscle tension. Whether the muscle itself changes length (isotonic contraction) or not (isometric contraction) depends upon the load attached to the muscle. For example, your biceps muscle is attached to your shoulder blade at one end and to your ulna in your forearm at the other end. When the biceps contracts, it shortens and pulls the ulna towards the shoulder blade. This movement allows you to lift your forearm and a given load or resitance. In contrast, if you are carrying a heavy load, such as a full suitcase, that makes you unable to lift your forearm, then the biceps does not shorten significantly. But the force that the muscle generates is helping you carry the suitcase. 1. Explain the following terminology in relation to muscle movement: a. Static Answer: b. Dynamic Answer: IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Until the mid-20th century, most scientists assumed that when a muscle shortened, its components did too, thereby resulting in contraction (movement). In 1954, however, two research teams (one from MIT and one from Cambridge) discovered that when muscles contract, the filaments within each muscle fiber actually slide past each other. Known as the sliding filament theory, their findings serve as the basic explanation for the process of muscular contraction. (CSS, 2012) IB Sports, Exercise and Health Science 4.2.2 Topic 4.2: Joint and Movement Type Outline the types of muscle contractions (cont) Watch…. Types of Contractions http://www.youtube.com/watch?v=T3OiOJ6-x34 For each of the following, provide an example of an exercise or movement with the relevant muscle(s) involved to explain the changes that occur during each type of contraction: Types of Muscle Contractions For each of the following, explain how the muscle is contracting and provide an example. 1. Isometric Answer: 2. Concentric Answer: 3. Eccentric Answer: 4. Isotonic Answer: 5. Isokinetic Answer: See… www.ptdirect.com/training-design/anatomy-and-physiology/musculoskeletal-system/skeletal-muscleroles-and-contraction-types http://education-portal.com/academy/lesson/isometric-and-isotonic-contraction-definition-andexamples.html#lesson IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Application 1. When kicking a football, the quadriceps muscle works to straighten the knee and the hamstrings contribute to control and slow down the motion of the lower limb. In this action, which muscle is contracting: a. Concentrically? Answer: b. Eccentrically? 2. Answer: Which type of contraction (isometric or isotonic) is prevalent in the following exercises: a. When holding a plank position. Answer: b. The lift on a lateral raise Answer: c. A wall sit (static squat) Answer: IB Sports, Exercise and Health Science 4.2.3 Topic 4.2: Joint and Movement Type Explain the concept of reciprocal inhibition Please Watch “Muscle Theory”: http://www.youtube.com/watch?v=4t2X2IvGyUE Read more- Movement Analysis: http://www.brianmac.co.uk/moveanal.htm 1. Explain each of the following in terms of their role in joint movement: Agonist Answer: Antagonist Answer: For Your Information- Stabilizer and Neutralizer Stabilizer- Answer: Certain muscles are considered to have the primary function of stabilizers in the body, being, by virtue of their position, shape, angle or structure, more suited to work as a stabilizer than as a mobilizer.. For instance, the abdominal group of muscles, once primarily thought of as a muscle we perform sit ups with, is much more important as a major stabilizer of the spine. Neutralizer- Answer: Like fixators, act to prevent unwanted movement. But instead of acting to prevent the unwanted movement of a body part they act to pull against and cancel out an unwanted line of pull from the agonist or prime mover. Many muscles can produce a pulling force in more than one direction so that an undesired joint action may occur simultaneously. Neutralizers prevent this. 2. Explain reciprocal inhibition using a bicep curl as an example. Answer: IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Investigation: The Lateral Raise http://www.exrx.net/WeightExercises/DeltoidLateral/DBLateralRaise.html 1. Identify the following when considering the lift on a lateral raise: a. Type of joint: Answerb. Type of movement: Answerc. Main agonist: Answerd. Main antagonist: Answer- IB Sports, Exercise and Health Science A Topic 4.2: Joint and Movement Type detailed analysis of movement is a complex activity requiring sophisticated equipment. However, a basic analysis of movement can be done visually and should involve the following: o a description of the movements which occur at the joints involved o the body plane and axis in which the movement occurs o the major muscles producing the movement o the function of the muscles involved (agonists, antagonists, synergists or fixators) o the type of contraction (isotonic -concentric or eccentric, isometric) Movement Analysis: The Strike Phase of a Soccer Kick Movement(s) Main Body Type of Produced Agonist Plane Contraction Ankle (hinge) plantar flexion tibialis anterior sagittal eccentric Knee (hinge) extension quadriceps group sagittal concentric Hip (ball and socket) flexion iliopsoas sagittal concentric Joint Type Action at Joints: An Overview Complete the missing information for each of the actions identified. Action Elevating the shoulders Extending the elbow Flexing the wrist Flexing the knee Dorsiflexion of the ankle Flexing the trunk Main Agonist Main Antagonist Type of Contraction IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type 4.2.4 Analyse movements in relation to joint action and muscle contraction Please watch “Analysis of Movement”- Squats and Press Ups: http://www.youtube.com/watch?v=fFDl4cL9ts0 The Hip Joint 1. What bones are articulating at the hip joint during a squat? Answer: 2. At what type of joint is the movement taking place? Answer: 3. What type(s) of movement(s) is occurring at the joint? Answer: 4. In which plane and axis is the movement occurring? Answer: 5. Identify the major muscle(s) involved in the motion: Answer: IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type The Knee Joint 1. What bones are articulating at the knee joint during a squat? Answer: 2. At what type of joint is the movement taking place? Answer: 3. What type(s) of movement(s) is occurring at the joint? Answer: 4. In which plane and axis is the movement occurring? Answer: 5. Identify the major muscle(s) involved in the motion: Answer: Motion of the Squat: Down with Knee Flexion During the downward motion of a squat, which major muscle(s) would be: 1. The agonist(s)? Answer: 2. The antagonist(s)? Answer: . IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Motion of the Squat: Up with Knee Extension During the upwards motion of a squat, which major muscle(s) would be: 1. The agonist(s)? Answer: . 2. The antagonist(s)? Answer: Summary Movement Analysis: The Squat Joint Type Phase of Main Body Body Type of Movement Agonist Plane Axis Contraction Ankle (hinge) Downward Knee (hinge) Downward Hip (ball and socket) Downward Upward Upward Upward Biomechanics of the Squat http://www.breathe.edu.au/biomechanics-of-the-squat/ OR https://books.google.co.th/books?id=FLibPedEE2YC&pg=PA14&dq=what+is+the+ago nist+muscles+in+upward+phase+of+the+squat&hl=en&sa=X&ved=0ahUKEwjctNqL8 M7JAhWCWI4KHfjbCZoQ6AEIGjAA#v=onepage&q=what%20is%20the%20agonist%2 0muscles%20in%20upward%20phase%20of%20the%20squat&f=false IB Sports, Exercise and Health Science 4.2.5 Topic 4.2: Joint and Movement Type Explain delayed onset muscle soreness (DOMS) in relation to eccentric and concentric muscle contractions Please read below UC HEALTH LINE: Delayed Onset Muscle Soreness—a Real Pain After Exercise For the fitness-inclined, a hard workout can actually feel good: a chance to loosen up tight joints, sweat out the day’s stress and push through the burn of those last few reps. But anyone who has pushed themselves with heavier weights or more miles has surely experienced the consequences the next day, when tight and sore muscles will barely let you walk up steps or lift your arms. It’s called Delayed Onset Muscle Soreness, or DOMS, and it’s perfectly normal, says Dan Carl, PhD, an assistant professor of clinical rehabilitative sciences at UC’s College of Allied Health Sciences. In typical DOMS, severe soreness and a decreased range of motion will develop between 24 and 48 hours after exercise, peak within 72 hours and then subside shortly after. It’s the body’s normal process after an intense workout and, Carl says, there isn’t much you can to do avoid it. "When you’re truly working the muscle, DOMS is inevitable,” he says. "You’re creating microtrauma at the individual fiber level, so you’re actually creating tears and disruption in the protein itself.” When muscle fibers tear, Carl said calcium will leak out, leading to further breakdown of the protein and stimulation of the body’s inflammatory-repair response, which floods the area with cells known as macrophages and neutrophils to begin the repair process. While the response creates soreness and stiffness in the muscle, it quickly mends the torn fibers, even making them stronger and thicker than before. What isn’t in the muscle during this process? Lactic acid. Carl said the past theory that a buildup of lactic acid caused muscle soreness has been discredited. IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type "It was the theory among scientists in the ’60s and ’70s,” he says, "but we have since figured out lactate has nothing to do with it. Lactic acid clears out fairly quickly from the muscles, within 15 to 20 minutes, if you do any sort of cool down or activity after the true intensity of the workout.” Carl says DOMS is particularly prevalent among "weekend warriors” or light exercisers trying to increase their stamina: "If you’re training every day, then part of your body’s training adaption is your ability to recover and offset that damage. Those people will have minor swelling within the tissue, but not the kind of swelling you get with DOMS.” If you do find yourself aching after a tough workout, try to keep moving. "Light walking or activity would help out tremendously,” says Carl. "It can produce an increase in fluid movement throughout the muscle tissue. Ice is your friend, too, as it reduces swelling. Regardless, DOMS takes 24 to 48 hours to repair itself, at minimum.” While DOMS is a normal response to intense exercise, Carl says it doesn’t include sharp, piercing pain or throbbing in the affected muscle. If you’re affected by any of those symptoms after a workout, contact your doctor. o Retrieved from… http://healthnews.uc.edu/news/?/14616/ What is DOMS, how is it caused and what can we do?? Click on this link and read an interesting article about this common cause of muscle soreness. Then in the space below, note the information that you think is most important. IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Check Your Understanding… 1. What causes delayed onset muscle soreness (DOMS)? Answer: 2. Outline the progress of DOMS from when an exercise is completed to the onset of symptoms. Answer: 3. Which type of muscle contraction typically contributes to DOMS, concentric or eccentric? Explain. Answer: 4. What are the symptoms of DOMS? Answer: 5. What are three non- medicinal remedies for DOMS? Answer: Read more: No pain, no gain? 5 myths about post-workout muscle soreness http://edition.cnn.com/2014/08/04/health/muscle-soreness-myths/ IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Review 1. Bookmark it! Review key terminology at the following website: Anatomy Flash Cards: http://www.mhhe.com/socscience/hhp/flashcards/ 2. Quiz Busters! Challenge yourself or play with a partner: http://www.teachers-direct.co.uk/resources/quiz-busters/quiz-busters-game.aspx?game_id=80322 3. For each type of movement, identify the opposite motion: o Flexion ---o Adduction ---o Pronation ---- o Plantarflexion ----- IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type 4. Read- Movements Agonist Antagonist Wrist flexion flexor digitorum extensor digitorum Wrist extension extensor digitorum flexor digitorum Elbow flexion biceps brachii triceps brachii elbow extension triceps brachii biceps brachii anterior deltoid pectoralis major biceps brachii posterior deltoid latissimus dorsi latissimus dorsi pectoralis major posterior deltoid latissimus dorsi triceps brachii anterior deltoid pectoralis major Shoulder flexion Shoulder extension Shoulder adduction deltoid (middle) shoulder abduction deltoid (middle) latissimus dorsi pectoralis major Spine/ trunk flexion rectus abdominis erector spinae Spine/ trunk extension erector spinae rectus abdominis iliopsoas quadriceps gluteus maximus hamstrings gluteus maximus hamstrings iliopsoas (quadriceps) Knee flexion hamstrings quadriceps Knee extension quadriceps hamstrings Dorsiflexion tibialis anterior gastrocnemius soleus Plantarflexion gastrocnemius soleus tibialis anterior Hip flexion Hip extension IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Investigation 1: An Analysis of limb movement Task One 1. Perform a curl with a light bar. Figure 1: Performing a curl with a light bar 2. Identify the bones numbered 1-4 in Figure 2. Answer: 3. Identify the structure numbered 5 in figure 2. Answer: 4. Explain what is meant by origin and insertion. Answer: Origin: Insertion: 5. Identify and classify the muscles, which are used in the action of curling a bar into the functional categories of agonist, (or prime mover) and antagonist. Answer: Figure 2 A. Flexion of the elbow B. Extension of the elbow IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type 6. Identify the agonists and antagonists that are active in: Table 1 Agonist Antagonist Elevating the shoulders Hyper-extending the back Flexing the knee 7. Identify the muscles that are active in: Table 2 Active Muscle A pull up A sit up A vertical jump 8. List the main agonists active in; The legs whilst cycling. Table 3 Agonist Depressing the pedal Hip extensors Knee extensors Ankle dorsiflexors Antagonist Hip flexors Knee flexors Ankle plantarflexors IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type 9. A backward roll, as illustrated in Figure 3, involves a series of coordinated muscle actions. Figure 3. Backward roll a) Question: Describe the movement patterns created at the hip and knee joints during the whole of the backward roll. Answer: Crouched starting position (position 2 in figure 3) - hip flexion, knee flexion. The crouched position is maintained as a tight ball with knee and hip fully flexed through positions 3,4 and 5 of figure. Position 4 has slight extension of knee joint (presumably to maintain balance). Position 5 has hip and knee in full extension. b) Question: Identify two agonist muscles acting on the shoulder joint during the push-off phase from the mat. Answer: Deltoid Pectoralis major. 10. Figure 4, A and B shows a shot putter during the delivery phase of the technique. a) List the bones that articulate in the shoulder and knee joints. Figure 4. Shot put action Answer: Shoulder: scapula, humerus Knee : femur, tibia, patella 11. Explain the movement sequence of the right arm during the delivery phase of the shot put. Answer: A. Shoulder extended and abducted, elbow flexed, wrist extended, hand pronated. B. Shoulder flexed and elevated, elbow extended, wrist pronated and extended, and fingers extended. IB Sports, Exercise and Health Science Topic 4.2: Joint and Movement Type Investigation o Hang from a bar, as shown in Figure 5A, holding a 90o angle in the elbow joint. Figure 5. Chinning bar o From the bent arm position, pull yourself up, as shown in Figure 5B. o When you have completed the chin-up, lower yourself slowly down to an arms extended position, as shown in Figure 5C. Task Work out the agonist muscles used for each exercise, and the type of muscular contraction being used for each exercise. Write your answers in table 4. Table 4 results - The chin up Agonist Type of contraction A. Biceps brachii Latissimus dorsi B. Biceps brachii Latissimus dorsi C. Latissimus dorsi Biceps brachii 1. In which part of the movement sequence is eccentric work being done? Answer: 2. Identify the muscle that is exerting force whilst lengthening. Answer: