When does a muscle start to work an-aerobically? Is it only 65-70% of maximum effort? No.
In some part, it will be determined by the ratio of contraction time to the total contraction-relaxation cycle. If the muscle contraction is held isometrically or if the contraction-relaxation cycle favours more contraction time than relaxation time, your muscle could work an-aerobically at 20% MVC if held indefinitely.
In some part, it will be determined by the ratio of contraction time to the total contraction-relaxation cycle. If the muscle contraction is held isometrically or if the contraction-relaxation cycle favours more contraction time than relaxation time, your muscle could work an-aerobically at 20% MVC if held indefinitely.
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