Using a video-based three-dimensional (3D) kinematic system, a 22-point body segment model of the athletes was reconstructed in 3D, and the variables ground reaction force, centre of mass (COM) speed, ...

Conic Section Model, ca 1900. Object 1979.3002.021, Smithsonian Image DOR2013-17883. The vast majority of mathematical models made around the turn of the 20th century ... Less common are kinematic ...