Fakulteta za šport, Ljubljana (FSPLJ)
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Biomechanical analysis of standing long jump from varying starting positionsMaćkała, Krzysztof ...The purpose of this study was; 1) to investigate the effect of the different foot movement (placement) during take-off and the initial knee joint angle employed in standing long jump by the ground ... reaction forces analysis and three dimensional motion analysis (BTS SMART motion); and 2) investigate how the jump performances of different foot placement is related to the EMG activity (Noraxon) of three selected muscle groups (m. gastrocnemius, m. gluteus maximus, m. rectus femoris, m. tibialis anterior, m. biceps femoris, m. vastus medialis). Six high caliber sprinters (100 m - 10.87 +/- 0.38 s and 400 m - 46.75 +/- 1.05 s) performed a series of jumps from parallel and straddle foot placement at take-off on a two force platform (Kistler model 9286B) to determine if a different pattern of take-off improves jumping distance. Using kinematic and kinetic data, the knee joint angle, the trajectories of center of mass (COM), mgnitude of take-off peak force, and impulse during take off phase were calculated. Average standing long jump performances with straddle foot placement were 13.58 cm (5.18%) above that from parallel feet placement. The take-off velocity with 90[degrees] knee initial angle initiation of take-off) was not different(1.18 m/s and 1.17 m/s respectively) between the two jumps. The take off angles on the COM trajectory also showed differences (69.87 deg. and 66.8 respectively) between each other. The contribution (EMG activation) made by the six muscles were almost the same during all phases for the two jumps however the some differences can be found, either in unilateral (single leg) or sums of both legs (bilateral) measurements. A recommendation can be formulated that the contribution of straddle foot placement during take-off can significantly increase the value of power measurement especially when the evaluation requires a complex movement structure with the division on the left and right leg, eg sprint start from block.Vir: Journal of strength and conditioning research. - ISSN 1533-4287 (Vol. 27, no. 10, October 2013, str. 2674-2684)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2013Jezik - angleškiCOBISS.SI-ID - 4354993
Avtor
Maćkała, Krzysztof |
Stodółka, Jacek |
Siemienski, Adam |
Čoh, Milan
Teme
šport |
sposobnosti |
moč |
skoki |
meritve |
meritve |
biomechanical analysis |
standing long jump |
jumps |
jumps
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vir: Journal of strength and conditioning research. - ISSN 1533-4287 (Vol. 27, no. 10, October 2013, str. 2674-2684)
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Maćkała, Krzysztof | ![]() |
Stodółka, Jacek | ![]() |
Siemienski, Adam | ![]() |
Čoh, Milan | 04954 |
Vir: Osebne bibliografije
in: SICRIS
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