Suppose that you try to pick up an object and discover that it is much heavier than you expected. Which process must occur in the muscle to increase tension so you can pick up the object?

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Quizplus · Accepted Answer

Recruitment involves the activation of more motor units in a muscle, which results in an increase in tension. This process allows the muscle to generate more force to pick up the heavier object. Wave summation and complete tetanus involve changes in the frequency of muscle stimulation, and treppe is a phenomenon where muscle tension increases in response to repeated stimuli, but these processes do not directly increase tension in response to a heavier load. Isotonic contraction involves the shortening of the muscle while maintaining constant tension, but it doesn't necessarily increase tension to pick up a heavier load.

Suppose That You Try to Pick Up an Object and Discover