PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sally is carrying a box of training materials directly in front of her, as she is on her way to set-up a conference room prior to the start of a seminar. While she is walking her biceps are remaining in a fixed position and are not being raised or lowered. Which of the following is this an example of?
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Concentric Contraction
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Eccentric Contraction
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Isometric Contraction
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Isokinetic Contraction
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Explanation:
Detailed explanation-1: -Concentric contraction occurs when the total length of the muscle shortens as tension is produced. For example, the upward phase of a biceps curl is a concentric contraction.
Detailed explanation-2: -A concentric contraction causes muscles to shorten, thereby generating force. Eccentric contractions cause muscles to elongate in response to a greater opposing force. Isometric contractions generate force without changing the length of the muscle.
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