Energy expenditure during bench press and squat exercises

Robergs, Robert A., Gordon, Toryanno, Reynolds, Jeff, & Walker, Thomas B. (2007) Energy expenditure during bench press and squat exercises. Journal of Strength and Conditioning Research, 21(1), pp. 123-130.

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Despite the popularity of resistance training (RT), an accurate method for quantifying its metabolic cost has yet to be developed. We applied indirect calorimetry during bench press (BP) and parallel squat (PS) exercises for 5 consecutive minutes at several steady state intensities for 23 (BP) and 20 (PS) previously trained men. Tests were conducted in random order of intensity and separated by 5 minutes. Resultant steady state V̇O2 data, along with the independent variables load and distance lifted, were used in multiple regression to predict the energy cost of RT at higher loads. The prediction equation for BP was Y′ = 0.132 + (0.031)(X1) + (0.01)(X 2), R2 = 0.728 and Sxy = 0.16; PS can be predicted by Y′ = -1.424 + (0.022)(X1) + (0.035)(X 2), R2 = 0.656 and Sxy = 0.314; where Y′ is V̇O2, X1 is the load measured in kg and X 2 is the distance in cm. Based on a respiratory exchange ratio (RER) of 1.0 and a caloric equivalent of 5.05 kcal·L-1, V̇O 2 was converted to caloric expenditure (kcal·min -1). Using those equations to predict caloric cost, our resultant values were significantly larger than caloric costs of RT reported in previous investigations. Despite a potential limitation of our equations to maintain accuracy during very high-intensity RT, we propose that they currently represent the most accurate method for predicting the caloric cost of bench press and parallel squat.

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25 citations in Scopus
21 citations in Web of Science®
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ID Code: 96830
Item Type: Journal Article
Refereed: Yes
Keywords: adolescent; adult; article; calorimetry; energy metabolism; exercise; human; male; middle aged; oxygen consumption; physiology; regression analysis; weight lifting, Adolescent; Adult; Calorimetry, Indirect; Energy Metabolism; Exertion; Humans; Male; Middle Aged; Oxygen Consumption; Regression Analysis; Weight Lifting
ISSN: 1533-4287
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Copyright Owner: Copyright 2007 National Strength and Conditioning Association
Deposited On: 08 Aug 2016 02:26
Last Modified: 28 Jun 2017 02:01

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