What is the physiology and ability to contract usually due to lack of ATP?

ATP can then attach to myosin, which allows the cross-bridge cycle to start again; further muscle contraction can occur. Therefore, without ATP, muscles would remain in their contracted state, rather than their relaxed state.

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it'll be alright, just keep on going and keep your head up!

so i really think that most of the health care industry be doing more bad than good.