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Original articles  EXERCISE PHYSIOLOGY AND BIOMECHANICS


The Journal of Sports Medicine and Physical Fitness 2007 March;47(1):13-7

Copyright © 2007 EDIZIONI MINERVA MEDICA

language: English

A comparison of once versus twice per week training on leg press strength in women

Burt J. 1, Wilson R. 1, Willardson J. M. 2

1 HPER Department, Utah State University, Logan, UT, USA 2 Physical Education Department Eastern Illinois University, Charleston, IL, USA


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Aim. The purpose of this study was to compare strength differences between 2 groups of untrained women, who performed a single set of the leg press exercise once or twice per week.
Methods. Twenty-one women were divided randomly into 2 groups: Group 1 (n=10) performed a single set of the leg press exercise once per week, while Group 2 (n=11) performed a single set of the leg press exercise twice per week for a period of 8 weeks. Throughout the duration of the study, an amount of resistance was utilized that allowed for a single set of 6 to 10 repetitions to muscular failure. At the conclusion of the study, subjects were tested for their 6-RM strength. A 2×2 ANOVA was used to compare strength differences. The a level was set at 0.05 in order for differences to be considered significant.
Results. The 2×2 ANOVA demonstrated that strength increases were significant between tests (P=0.0001), but not significant between groups (P=0.757).
Conclusion. These results indicate that performing a single set of the leg press once or twice per week results in statistically similar strength gains in untrained women.

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