Peter Attia· MD
it can't bind strongly until calcium comes into the picture it gets released from the sarcoplasmic reticulum that has to come to the equation it has to cause this confirmational change and act in and move these T tubules or that comes from T tubules move some other things around once those things get moved around by the calcium theasin is like oh boom it connects something and then it just almost subconsciously snaps as hard as it possibly can