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Spring mass characteristics of the fastest men on earth

Taylor, MJD and Beneke, R (2012) 'Spring mass characteristics of the fastest men on earth.' International Journal of Sports Medicine, 33 (8). 667 - 670. ISSN 0172-4622

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Abstract

The spring mass model has widely been used to characterize the whole body during running and sprinting. However the spring mass characteristics of the world's fastest men are still unknown. Thus the aim of this study was to model these characteristics for currently the 3 fastest men on earth (Usain Bolt, Tyson Gay and Asafa Powell). This was done by using data collected during the 2009 World championships in Berlin and the modelling method of Morin et al. 21. Even though Bolt achieved the greatest velocity (12.3 m.s 1) over the 60-80 m split compared to his competitors, his estimated vertical stiffness (355.8 kN.m 1) and leg stiffness (21.0 kN.m 1) were significantly lower than his competitors. This reduction in stiffness is a consequence of Bolt's longer contact time (0.091 s) and lower step frequency (4.49 Hz). Thus Bolt is able to run at a greater velocity but with lower stiffness compared to his competitors. © 2012 Georg Thieme Verlag KG Stuttgart New York.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of
Depositing User: Matthew Taylor
Date Deposited: 29 Jun 2012 14:48
Last Modified: 31 Jul 2019 10:15
URI: http://repository.essex.ac.uk/id/eprint/2473

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