It has something to do with a sliding interaction between actin and myosin. In 1954, scientists published two groundbreaking papers describing the molecular basis of muscle contraction.

It was first discovered in skeletal muscle, where actin filaments slide along filaments of another protein called myosin to make the cells contract. (In nonmuscle cells, actin filaments are less ...

In this type of contraction, a protein in your muscles called myosin binds to another protein called actin and drags it to shorten muscle fibres. Now imagine you start at the top: your muscles are ...

In healthy muscle, small thread-like components called actin and myosin neatly line up next to each other. With DOMs, “all of ...