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Physics, 07.10.2019 19:00 gizmo50245
At its natural resting length, a muscle is close to its optimal length for producing force. as the muscle contracts, the maximum force it can deliver decreases. when a muscle is at approximately 80% of its natural length, it cannot contract much more and the force it can produce drops drastically. for a muscle stretched beyond its natural length, the same is true. at about 120% of its natural length, the force that a muscle can exert against drops drastically. this muscle length to force relationship can be demonstrated by doing a chin-up. as you hang from the bar, your biceps muscles are stretched and can produce only a relatively small force. as you get close to the bar, your biceps muscles contract substantially, and you again experience difficulty. the easiest part of the chin-up occurs somewhere in between, when your muscles are close to their natural length.
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At its natural resting length, a muscle is close to its optimal length for producing force. as the m...
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