when you extend your elbow to put down a heavy object (e.g. placing a heavy textbook on a table), your biceps is being lengthened, but it is still contracting to control the downward movement. what type of contraction is this?

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01-12-2022
Biology

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when you extend your elbow to put down a heavy object (e.g. placing a heavy textbook on a table), your biceps is being lengthened, but it is still contracting to control the downward movement. what type of contraction is this?

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abhinavjh321 abhinavjh321 · Answer 1 · 2022-12-05T20:25:09+01:00

Your biceps are stretched when you extend your arm to set down a heavy object (such a large book on a table), but they are still contracting to regulate the downward movement. Isometric contraction is a form of contraction.

When tension is applied, an isometric contraction happens because the length of the muscle remains mostly unchanged. Isometric contraction, for instance, occurs while doing a biceps curl while holding the weight stationary rather than actively raising or lowering it. Isometric contraction include tightening (contracting) a specific biceps muscle or group of muscles. Isometric exercises do not considerably change the muscle's length. Furthermore, the injured joint is immovable. Isometric exercises help to maintain strength.

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