Humankind has always been fascinated by the concept ofdepicting and recording human motion. During theRenaissance, Giovanni Alfonso Borelli, a student of Galileo,was among the first scientists to analyse motion whiledeveloping his theory of muscle action based uponmechanical principles. Early static interpretations ofmorbid anatomy by Da Vinci and Vesalius were ‘brought tolife’ by the discovery that electricity caused muscle activity, asdescribed by Luigi Galvani in 1791. The first scientific,systematic evaluation of muscle function was conducted byDuchenne who described the function of individual musclesof the human body in a monumental work, Physiologie desMouvements, published in 1867.