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  • Title: Effect of push-up variations performed with Swiss ball on muscle electromyographic amplitude in trained men: A cross-sectional study.
    Author: Bezerra ES, Orssatto LBDR, Werlang LC, Generoso AM, Moraes G, Sakugawa RL.
    Journal: J Bodyw Mov Ther; 2020 Apr; 24(2):74-78. PubMed ID: 32507156.
    Abstract:
    PURPOSE: To compare the use of three variations of push-ups: traditional (stable surface), performed with hands on the Swiss ball (Swiss ball-hands), and performed with feet on the Swiss ball (Swiss ball-feet) on surface electromyography activity (sEMG) in the agonist and stabilizer muscles. METHODS: Ten trained men (26 ± 5 years, 76.8 ± 8.7 kg, 1.70 ± 0.06 m) performed one experimental protocol within-subjects in a randomized design. Each subject performed one set of 10 of each of the push-up variations (5-min rest between sets). The sEMG activity was assessed for pectoralis major, triceps brachii, anterior deltoids, and rectus abdominis. One-way repeated-measures ANOVA (Bonferroni) compared push-up variations within-muscles (p < 0.05). RESULTS: Pectoralis major sEMG was similar between exercises. Anterior deltoid sEMG activity was greater for stable surface than for Swiss ball-hands (p = 0.001). Triceps brachii sEMG activity was greater during Swiss ball-hands than during stable surface (p = 0.001) and Swiss ball-feet (p = 0.043), and Swiss ball-feet was greater than stable surface (p = 0.001). Rectus abdominis sEMG activity was greater during Swiss ball-hands than during stable surface (p = 0.0001) and Swiss ball-feet (p = 0.036), while Swiss ball-feet was greater than stable surface (p = 0.046). CONCLUSIONS: Push-ups performed with hands on the Swiss ball may be considered an advanced variation that should be used when the goal is to achieve greater challenge of the rectus abdominis and triceps brachii. Novice subjects or those with weakness/injury should perform push-ups with hands on a stable surface, and with progression, push-ups with feet on Swiss ball could be adopted before hands on Swiss ball.
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