Within 1 Week of Beginning Resistance Exercise of the Shoulder

question 7

Multiple Choice

Within 1 week of beginning resistance exercise of the shoulder external rotators as a component of a rehabilitation program after a shoulder injury, your patient, Mr.K, is able to increase the level of resistance by using a heavier grade of elastic tubing.This improvement in muscle performance is due primarily to which of the following adaptive changes?

• A)Increased recruitment of motor units
• B)Increased oxygen to the muscle
• C)Hypertrophy of muscle fibers
• D)Fiber-type transformation from slow twitch to fast twitch

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