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Question
As you are lifting a box, someone places extra weight on top of it. For your muscle to continue contracting and lifting the box, the muscle must __________.
A. recruit more muscle fibers
B. lower its threshold
C. reduce its wave summation
D. shift from isometric to isotonic contraction
E. shift from slow-twitch to fast-twitch mode
Answer
This answer is hidden. It contains 19 characters.
Related questions
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