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Joint kinetic determinants of starting block performance in athletic sprinting

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Author
Brazil, Adam
Exell, Timothy
Wilson, Cassie
Willwacher, Steffen
Bezodis, Ian
Irwin, Gareth
Date
2017-11-27
Acceptance date
2017-11-16
Type
Article
Publisher
Taylor & Francis
ISSN
0264-0414
1466-447X (online)
Metadata
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Abstract
The aim of this study was to explore the relationships between lower limb joint kinetics, external force production and starting block performance (normalised average horizontal power, NAHP). Seventeen male sprinters (100 m PB, 10.67 ± 0.32 s) performed maximal block starts from instrumented starting blocks (1000 Hz) whilst 3D kinematics (250 Hz) were also recorded during the block phase. Ankle, knee and hip resultant joint moment and power were calculated at the rear and front leg using inverse dynamics. Average horizontal force applied to the front (r = 0.46) and rear (r = 0.44) block explained 86% of the variance in NAHP. At the joint level, many “very likely” to “almost certain” relationships (r = 0.57 to 0.83) were found between joint kinetic data and the magnitude of horizontal force applied to each block although stepwise multiple regression revealed that 55% of the variance in NAHP was accounted for by rear ankle moment, front hip moment and front knee power. The current study provides novel insight into starting block performance and the relationships between lower limb joint kinetic and external kinetic data that can help inform physical and technical training practices for this skill.
Journal/conference proceeding
Journal of Sports Sciences;
Citation
Brazil, A., Exell, T., Wilson, C., Willwacher, S., Bezodis, I.N. and Irwin, G. (2018) 'Joint kinetic determinants of starting block performance in athletic sprinting', Journal of Sports Sciences, 36(14), pp.1656-1662
URI
http://hdl.handle.net/10369/9484
DOI
https://doi.org/10.1080/02640414.2017.1409608
Description
Article published in Journal of Sports Sciences available at https://doi.org/10.1080/02640414.2017.1409608
Rights
http://www.rioxx.net/licenses/all-rights-reserved
Collections
  • Sport Research Groups [1083]

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