Glossary of biomechanical terms, concepts, and units.

In the last decade, physical therapists have recognized that the field of biomechanics has become an area of study that can contribute significantly to the profession; therefore, it has become a part of most curricula. Biomechanics represents an amalgamation of several different fields including mechanics, physics, engineering, anatomy, physiology, and mathematics. More recently, elements of computer science and electronics have also become integral components. The breadth of knowledge required is therefore substantial, and we are not surprised about the lack of precision concerning terminology in certain areas. A lack of formal background during professional preparation may lead to the misuse of some terms because of the relative infancy of biomechanics. The simultaneous inclusion of biomechanics into the body of knowledge of other fields such as orthopedics, ergonomics, prosthetics, and podiatry have sometimes led to disagreement over basic definitions and concepts, which have developed different meanings in different fields.