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|Type:||Artigo de periódico|
|Title:||Upper Body Force Production After A Low-volume Static And Dynamic Stretching|
|Abstract:||This study investigated the acute effect of a low-volume static and dynamic stretching on maximal isometric peak force (MIPF), time to maximal isometric force (TMIF), rate of force production (RFP) and average amplitude of the surface EMG (AvgEMG) of the main agonist muscles acting on the bench press maximum isometric force exercise. Thirty subjects were randomly divided into three groups: static stretch (SG: 22.8±5.6 years, 176.6±3.5 cm, 74.4±5.9 kg), dynamic stretch (DG: 21.4±3.9 years, 178.4±7.2 cm, 71.7±8.2 kg) and control group (CG: 20.4±3.6 years, 179.8±5.8 cm, 74.4±9.8 kg). SG performed two 30-s repetitions and DG performed 10 repetitions of each of the two different exercises for the pectoralis major and triceps brachii. The MIPF, TMIF, RFP and AvgEMG of the pectoralis major (sternocostal part) and triceps brachii (long and lateral head) were measured before and immediately after the stretching protocols. A significant decrease in the MIPF from pre- to post-stretching was observed in both SG (p <0.001) and DG (p <0.05). No significant differences were found in the CG for all force parameters. No significant differences in the TMIF and RFP from pre- to post-stretching were found in the three groups. The SG showed a significant (p <0.05) decrease in the AvgEMG of the three muscles, whereas no significant differences were found for the DG and CG. These findings suggest that a low-volume static and dynamic stretching adversely affects efforts of muscle maximal strength of the upper limb muscles studied, but it does not seem to affect TMIF or RFP. © 2012 © 2012 European College of Sport Science.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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