The Cost of Muscle Contracture

As a bond is broken, energy is released. Energy comes out like going to the bank and handing over your check. I've never understood the level of muscle contraction in order for the muscle to continue to contract. In fact, more importantly, relax when people die and contract and can't relax any longer. And that never happens in exercise, even though it sometimes feels like it does. Anyway, where were we? So, okay, so brain signal, muscle starts working. There's a cost to that work from the muscles. It's energy requirements. That energy is coming from ATP. But that ATP is the result of glycogen and fatty acids and oxalucas. The oxygen