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The Effect of Voluntary Effort to Influence Speed of Contraction on Strength, Muscular Power, and Hypertrophy Development

Young, Warren B., Bilby, Glenn E.·1993·Journal of Strength and Conditioning Research
DOI 10.1519/00124278-199308000-00009
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Abstract

This study investigated the effects of execution speed on measures of strength, muscular power, and hypertrophy. Eighteen male subjects trained with the half-squat exercise using an 8- to 12-RM load for 7-1/2 weeks. Eight subjects tried to produce fast concentric contractions while 10 subjects emphasized slow controlled movements. Both groups improved significantly in all measures; however, no significant differences were observed between the groups over the training period. Trends based on percentage improvements gave some support for the fast group improving more (68.7%) than the slow group (23.5%) in maximum rate of force development. The slow group improved to a greater extent (31%) that the fast group (12.4%) in absolute isometric strength, whereas the percentage gains in hypertrophy were similar for both groups. It was concluded that strength, speed-strength, and hypertrophy measures can be simultaneously developed significantly in beginning weight trainers. Beginner athletes should consider the possible effects of consciously controlling speed of contraction in weight training.

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Crossref · 10.1519/00124278-199308000-00009

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Metadata

Authors
Young, W. B., & Bilby, G. E.
Venue
Journal of Strength and Conditioning Research
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
1993-08
Volume
7
Issue
3
Pages
172-178
ISSN
1064-8011
DOI
10.1519/00124278-199308000-00009
Cited by
10
References
0
Language
en

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