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Chrome File Edit View History Bookmarks People Window Help 4) 70%, Wed 12:52 PM Jeni Parekh QE HPEX 374 : BI X Y Q Directional Tex Q Types of Bod/X -Lab Materials × y D HPEX 374 lab × Person 1 Rotator Cuff: X Student-myV X Search Textbox -C Secure https://blackboard.vcu.edu/bbcswebdav/pid-7202138-dt-content-rid-24576048-2/courses/HPEX-374-902-2018Spring/HPEX%20374-lab assign. a Apps w New Tab 15 Best Quick and H... Quinoa with Roasted...Sign In Page nvc Home - FAFSA on th... PMyLabsPlus | PearsorF The Belvedere Apart HPEX 374lab assignment1.pdf 3 6 2. Medicine Ball Throw Describe in detail the joints being utilized in the motion, the bones that comprise each of those joints, what joint action is taking place, and the muscles that are gencrating the motions and what planc of motion and axis of rotation is being utilized for each motion as the person goes from position 1-3 and from 4-6. a.

Explanation / Answer

Step1 to 3 is throwing of medicine ball

Step 4 to 6 is catching it back

Step 1 subject lying supine on ground with hips and knees flexed

Elbow joint flexed, forearms pemi pronated

Extension at wrist joints

And slight flexion at phalanx to hold the ball

Shoulder joint is made up of clavicle, upper end of humerus, glenoid cavity

Elbow joint is made up of lower end of humus and upper end of radius and ulna

Wrist joints are made up of lower radius,ulna and carpal bones and proximal part of metacarpal bones

Step 2: patient is gaining momentum to throw the ball and executing the throwing arc

During initiation and execjtion of throw

There is flexion at shoulder jt

Extension at elbow jt

Pronation of forearm from a semipronated status

Flexion at wrist joint

Taut shoulder and chest muscles and triceps

At the end of complete throw (step 3)

shoulder is flexed and adducted

elbow fully extended

wrist flexed

forearm and hand in pronated position

metacarpophalangeal joints are extended

pectoral muscles sternocleidomastoid and neck muscles are contracted

steps 4 to 6 are occuring in reverse order

hence all the movements are occuring in reverse order at various joints while the patient is catching it back

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