Biomechanics, what is it?

Biomechanics is the science of the movement of the living body, including how muscles, bones, tendons, and ligaments work together to move. Biomechanics is part of the larger field of kinesiology, specifically focusing on movement mechanics. In short, it's the study and analysis of how all the individual parts of your body work together to make up athletic and everyday movements.

Biomechanics includes the structure of bones and muscles and the movement they can produce, as well as the mechanics of blood circulation, renal function, and other body functions. The European Society of Biomechanics defines biomechanics as “the study of forces acting on and generated within a body and the effects of these forces on the tissues, fluid or materials used for the diagnosis, treatment or research purposes.

Understanding Biomechanics and Body Movement (verywellfit.com)