Technical strategy of triple jump: Differences of inverted pendulum model between hop-dominated and balance techniques
BACKGROUND: The present study aims to cross-sectionally clarify the characteristics of the motions of an inverted pendulum model, a stance leg, a swing leg and arms in different triple-jumping techniques to understand whether or not hop displacement is relatively longer rather than step and jump displacements.
METHODS: Eighteen male athletes performed the triple jump with a full run-up. Based on the technique of the jumpers, they were classified as hop-dominated (N.=10) or balance (N.=8) jumpers. The kinematic data were calculated using motion capture and compared between the two techniques using the inverted pendulum model.
RESULTS: The hop-dominated jumpers had a significantly longer hop displacement and faster vertical center-of-mass (COM) velocity of their whole body at hop take-off, which was generated by faster rotation behaviors of inverted pendulum model and faster swinging behaviors of arms. Conversely, balance jumpers had a significantly longer jump displacement and faster horizontal COM velocity of their whole body at take-off, which was generated by a stiffer inverted pendulum model and stance leg.
CONCLUSIONS: The results demonstrate that hop-dominated and balance jumpers enhanced each dominated-jump displacement using different swing- and stance-leg motions. This information may help to enhance the actual displacement of triple jumpers using different jumping techniques.
© Copyright 2018 The Journal of Sports Medicine and Physical Fitness. Edizioni Minerva Medica. Kaikki oikeudet pidätetään.
Aiheet: | kolmiloikka yleisurheilu tekniikka liikkeen ominaisuus |
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Aihealueet: | voima ja nopeus urheilu tekniset ja luonnontieteet |
DOI: | 10.23736/S0022-4707.17.07833-1 |
Julkaisussa: | The Journal of Sports Medicine and Physical Fitness |
Julkaistu: |
2018
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Vuosikerta: | 58 |
Numero: | 12 |
Sivuja: | 1741-1751 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |