PHYSIOLOGY
MUSCLE CONTRACTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of muscle contraction would occur if you are holding a book in the same position?
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isotonic
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isometric
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static
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contractile
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Explanation:
Detailed explanation-1: -An example of isometric muscle contraction is holding a book in the same position. A muscle contraction is isotonic if muscle length changes, but muscle tension remains the same. An example of isotonic muscle contraction is raising a book by bending the arm at the elbow.
Detailed explanation-2: -Isometric exercises are tightening (contractions) of a specific muscle or group of muscles. During isometric exercises, the muscle doesn’t noticeably change length. The affected joint also doesn’t move.
Detailed explanation-3: -Answer and Explanation: C. Pushing against an immovable wall is an example of an isometric contraction.
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