Adjusting Powerlifting Performances for Differences in Body Mass

Cleather, Daniel J. (2006) Adjusting Powerlifting Performances for Differences in Body Mass. Journal of Strength & Conditioning Research:, 20 (2). pp. 412-421. ISSN 1064-8011

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Official URL: http://journals.lww.com/nsca-jscr/Abstract/2006/05...

Abstract

It has been established that, in the sports of Olympic weightlifting (OL) and powerlifting (PL), the relationship between lifting performance and body mass is not linear. This relationship has been frequently studied in OL, but the literature on PL is less extensive. In this study, PL performance and body mass, for both men and women, was examined by using data from the International Powerlifting Federation World Championships during 1995-2004. Nonlinear regression was used to apply 7 models (including allometric, polynomial, and power models) to the data. The results of this study indicate that the relationship between PL performance and body mass can be best modeled by the equation y = a - bx2c, where y is the weight lifted (in kg) in the squat, bench press, or deadlift, x is the body mass of the lifter (in kg), and a, b, and c are constants. The constants a, b, and c are determined by the type of lift (squat, bench press, or deadlift) and the gender of the lifter and were obtained from the regression analysis. Inspection of the plots of raw residuals (actual performance minus predicted performance) vs. body mass revealed no body mass bias to this formula in contrast to research into other handicapping formulas. This study supports previous research that found a bias toward lifters in the intermediate weight categories in allometric fits to PL data.

Item Type: Journal Article
Subjects: 600 Technology > 612 Human physiology
700 The arts; fine & decorative arts; recreation > 796 Athletic & outdoor sports & games
School/Department: School of Sport, Health and Applied Science
Depositing User: Jonathan Lucas
Date Deposited: 23 May 2012 15:38
Last Modified: 23 May 2012 15:38
URI: http://research.stmarys.ac.uk/id/eprint/163

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