Journal article

No difference in 1RM strength and muscle activation during the barbell chest press on a stable and unstable surface

Craig A Goodman, Alan J Pearce, Caleb J Nicholes, Brad M Gatt, Ian H Fairweather

JOURNAL OF STRENGTH AND CONDITIONING RESEARCH | LIPPINCOTT WILLIAMS & WILKINS | Published : 2008

Abstract

Exercise or Swiss balls are increasingly being used with conventional resistance exercises. There is little evidence supporting the efficacy of this approach compared to traditional resistance training on a stable surface. Previous studies have shown that force output may be reduced with no change in muscle electromyography (EMG) activity while others have shown increased muscle EMG activity when performing resistance exercises on an unstable surface. This study compared 1RM strength, and upper body and trunk muscle EMG activity during the barbell chest press exercise on a stable (flat bench) and unstable surface (exercise ball). After familiarization, 13 subjects underwent testing for 1RM s..

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University of Melbourne Researchers