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Sports 2016, 4(3), 43; doi:10.3390/sports4030043

Greater Strength Drives Difference in Power between Sexes in the Conventional Deadlift Exercise

1
Health and Human Performance, George Mason University, Manassas, VA 20110, USA
2
Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, WI 54601, USA
3
Centre for Exercise and Sport Science Research, Edith Cowan University, Joonalup, WA 6027, Australia
4
Kinesiology Department, Texas Christian University, Fort Worth, TX 76129, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Eling Douwe de Bruin
Received: 13 July 2016 / Revised: 2 August 2016 / Accepted: 3 August 2016 / Published: 5 August 2016
View Full-Text   |   Download PDF [211 KB, uploaded 5 August 2016]

Abstract

Limited research exists comparing sex differences in muscular power. The primary purpose of this research was to determine if differences exist in power and velocity in the conventional deadlift (CDL). A secondary purpose was to examine the relationship among power, velocity, strength, and fat free mass (FFM). Eighteen strength trained athletes with ≥1 year CDL experience (women: n = 9, 29 ± 2 years, 162.3 ± 1.8 cm, 62 ± 2.4 kg, 23.3 ± 3.2 % body fat (%BF); men: n = 9, 29 ± 3 years, 175.6 ± 1.8 cm, 85.5 ± 1.4 kg, 14.8 ± 2.4 %BF), and ≥1.5 one repetition maximum (1-RM) CDL: body mass (BM) ratio (women: 1.6 ± 0.1 1-RM CDL: BM; men: 2.3 ± 0.1 1-RM CDL: BM), performed baseline (body composition, 1-RM CDL) and experimental sessions, in which velocity and power were measured at 30%, 60%, and 90% 1-RM. Repeated measures ANOVA and bivariate correlations were conducted. Men produced higher absolute average and peak power across all loads, but higher average velocity at only 30% 1-RM. When normalized to FFM, men produced higher peak and average power; however, women produced higher peak and average velocities across all loads. FFM and 1-RM were correlated with power. Greater power observed in men is driven by larger muscle mass, which contributes to greater strength. View Full-Text
Keywords: gender differences; resistance; velocity; 1-RM deadlift gender differences; resistance; velocity; 1-RM deadlift
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jones, M.T.; Jagim, A.R.; Haff, G.G.; Carr, P.J.; Martin, J.; Oliver, J.M. Greater Strength Drives Difference in Power between Sexes in the Conventional Deadlift Exercise. Sports 2016, 4, 43.

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