Identyfikacja obciążeń wewnętrznych w wybranych stawach w trakcie kontaktu skoczka z podłożem podczas przerzutu i salta w przód

Summary The internal loads at the selected joints during contact of the jumper with the ground when performing the handspring front pike somersault were identified in this work. The computations were based on a three-dimensional model of the human body defined in natural coordinates. The time courses of the net muscle torques and internal reactions at the hip, knee, ankle and shoulder joints were obtained by inverse dynamics. The influence of nonconsistent lengths of anatomical segments on the computation results was also verified. The achieved results revealed 3D state of internal loads at the joints. It was also shown that the natural coordinates provide a useful environment for modeling spatial biomechanical structures.