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Comparisons of peak ground reaction force and rate of force development during variations of the power clean

Comfort, P, Allen, M and Graham-Smith, P 2011, 'Comparisons of peak ground reaction force and rate of force development during variations of the power clean' , Journal of Strength and Conditioning Research, 25 (5) , pp. 1235-1239.

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Abstract

The aim of this investigation was to determine the differences in vertical ground reaction forces and rate of force development (RFD) during variations of the power clean. Elite rugby league players (n = 11; age 21 ± 1.63 years; height 181.56 ± 2.61 cm; body mass 93.65 ± 6.84 kg) performed 1 set of 3 repetitions of the power clean, hang-power clean, midthigh power clean, or midthigh clean pull, using 60% of 1-repetition maximum power clean, in a randomized order, while standing on a force platform. Differences in peak vertical ground reaction forces (Fz) and instantaneous RFD between lifts were analyzed via 1-way analysis of variance and Bonferroni post hoc analysis. Statistical analysis revealed a significantly (p < 0.001) greater peak Fz during the midthigh power clean (2,801.7 ± 195.4 N) and the midthigh clean pull (2,880.2 ± 236.2 N) compared to both the power clean (2,306.24 ± 240.47 N) and the hang-power clean (2,442.9 ± 293.2 N). The midthigh power clean (14,655.8 ± 4,535.1 N·s−1) and the midthigh clean pull (15,320.6 ± 3,533.3 N·s−1) also demonstrated significantly (p < 0.001) greater instantaneous RFD when compared to both the power clean (8,839.7 ± 2,940.4 N·s−1) and the hang-power clean (9,768.9 ± 4,012.4 N·s−1). From the findings of this study, when training to maximize peak Fz and RFD the midthigh power clean and midthigh clean pull appear to be the most advantageous variations of the power clean to perform.

Item Type: Article
Uncontrolled Keywords: hang power clean, mid-thigh power clean, performance
Themes: Health and Wellbeing
Schools: Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Journal of Strength and Conditioning Research
Publisher: Human Kinetics
Refereed: Yes
ISSN: 1064-8011
Depositing User: P Comfort
Date Deposited: 03 Oct 2011 12:07
Last Modified: 20 Aug 2013 17:10
URI: http://usir.salford.ac.uk/id/eprint/17808

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