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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology


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The Journal of Sports Medicine and Physical Fitness 2017 Oct 24

DOI: 10.23736/S0022-4707.17.07833-1

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Technical strategy of triple jump: differences of inverted pendulum model between hop-dominated and balance techniques

Nobuaki FUJIBAYASHI 1 , Mitsuo OTSUKA 2, Shinsuke YOSHIOKA 3, Tadao ISAKA 2

1 Faculty of Sport Study, Biwako Seikei Sports College, Otsucity, Japan; 2 Faculty of Sport and Health Science, Ritsumeikan University, Kusatsucity, Japan; 3 Department of Life Sciences, The University of Tokyo, Bunkyo, Japan


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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 centre-of-mass (COM) velocity of their whole body at hop take-off, which was generated by faster rotation behaviours of inverted pendulum model and faster swinging behaviours 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.


KEY WORDS: Horizontal jump - Jumping technique - Cross sectional analysis - The motion of centre of mass - Free limb motion

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Publication History

Article first published online: October 24, 2017
Manuscript accepted: October 5, 2017
Manuscript revised: September 15, 2017
Manuscript received: May 30, 2017

Cite this article as

Fujibayashi N, Otsuka M, Yoshioka S, Isaka T. Technical strategy of triple jump: differences of inverted pendulum model between hop-dominated and balance techniques. J Sports Med Phys Fitness 2017 Oct 24. DOI: 10.23736/S0022-4707.17.07833-1

Corresponding author e-mail

fujibayashi@bss.ac.jp