Biomechanics: static jumping

Discussion Fifty four subjects were measured playacting devil different upright stomaching styles; the placid carry-go (SJ) and counter impulsion jump (CMJ). The counter movement jump involved pre-stretching whereas the static jump needful a 3 second 90º worm at the knee joint. During both these jumps both weapons were held nonmoving behind the subjects back. This is essential because arm swing enhances energizing push button and consequently increases jump height (Lees, Clercq and Vanrenterghem, 2004).         When vim builders abbreviate coaxialalally office is placed on the bone via tendons and movement occurs at the joint. This contractile force can be increased if the muscle performs a extension contraction before the commencement of the muscle shortening contraction. The SCC is identify as an persona contraction followed straightaway by homocentric contraction. The series elastic component (SEC) is mind to be the tool by which the SSC ope rates (Hall, 2003). The stretch shorten calendar method is likely to composition for the 11% difference between the SJ and CMJ means.         When performing the CMJ the concentric forces acting on the hip, knee and ankle joints had to admit more sign force when compared to the initial force call for for the SJ, (Bobbert, Gerritsen, Litjens, Soest, 1996, cited in Walshe, Wilson, Ettema, 1998). During the SJ the concentric forces only work against body weight. nonetheless during the CMJ the concentric forces essential work against body weight and the eccentric forces being applied. so the need for greater initial concentric contraction is required to combat these forces during the CMJ. Relationships between the maximum upright velocities and jump heights for both jumping techniques can be seen in suppose 2. In accordance with the above guess they are highly correlated; 0.959 and 0.985 respectively.         Fast-twitch (FT) muscle fibres are definitive for athletes who must bring to p! ass powerful jumps (Hall, 2003). Individuals with a... If you want to get a full essay, regulate it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper