Can you please explain in detail. Thanks TASK 1 Minimise atrophy of the external rotator muscles at theglenohumeral joint as person recovers from injury and hasrestricted range of the GHJ.

What exercise would you use? Type of contraction? Single ormulti-joint? Open or closed kinetic chain? What strategies would you use when teaching a patient toperform this exercise who is in the cognitive phase of skillacquisition? Once fully recovered and all movement at the GHK is allowed,how would you modify/progress the exercise to continue to increasethe strength of those muscles? Describe the prescription variables that you would use toimprove strength (reps, sets etc).

TASK 2 The Barbell Squat

How would you teach a person to barbell squat in cognitivephase of skill acquisition? What are the key features of this phaseof skill acquisition? What muscles are the agonist / antagonist in each phase of theexercise? What types of muscle contractions are involved for the hip,knee and trunk extensors? Isometric, eccentric or concentric? Is this exercise open or closed kinetic chain, single or multi-joint? If a person had poor balance but you needed to strengthen thetrunk, hip, and knee extensor muscles, how could you modify thisexercise by changing the type of resistance? What are the advantages and limitations of using a squatcompared to single-joint exercises for each individual muscle?