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Rivista di Medicina, Traumatologia e Psicologia dello Sport

Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111

Periodicità: Mensile

ISSN 0022-4707

Online ISSN 1827-1928


The Journal of Sports Medicine and Physical Fitness 2015 Sep 11

Kinetic analysis of the function of the upper body for elite race walkers during official men 20 km walking race

Hoga-Miura K. 1, Ae M. 2, Fujii N. 2, Yokozawa T. 3

1 Faculty of Economics, Seikei University, Tokyo, Japan;
2 Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan;
3 Japan Institute of Sports Sciences, Tokyo, Japan

AIM: This study investigated the function of the upper extremities of elite race walkers during official 20 km races, focusing on the angular momentum about the vertical axis and other parameters of the upper extremities.
METHODS: Sixteen walkers were analysed using the three-dimensional direct linear transformation method during three official men’s 20 km walking races. The subjects, included participants at the Olympics and World Championships, who finished without disqualification and had not been disqualified during the two years prior to or following the races analysed in the present study.
RESULTS: The angular momenta of the upper and lower body were counterbalanced as in running and normal walking. The momentum of the upper body was mainly generated by the upper extremities. The joint force moment of the right shoulder and the joint torque at the left shoulder just before right toe-off were significantly correlated with the walking speed. These were counterbalanced by other moments and torques to the torso torque, which worked to obtain a large mechanical energy flow from the recovery leg to the support leg in the final phase of the support phase.
CONCLUSION: Therefore, a function of the shoulder torque was to counterbalance the torso torque to gain a fast walking speed with substantial mechanical energy flow.

lingua: Inglese


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