Estudo eletromiográfico do exercício supino executado em diferentes ângulos

Abstract

ObjectiveThe objective of this was to evaluate of the peak maximum strength, and EMG activation (EMG) in the muscles clavicular portion of pectoralis major (CPPM), sternal portion of pectoralis major (SPPM), and anterior deltoid (AD) in the 3 different angles of the bench press. MethodThey were selected 11 male subjects (23.7±3.2 years, 75.1±12.6kg, 173.7cm, 9.8±3.6% BF), experienced in strength training (2,8±1.5 years, 3.2±0.2 days of the week, 70±8.9 minutes by session). The subjects were submitted to the tests of voluntary contraction maximum isometrics (CVIM), in the horizontal bench press (HBP: 90°), in the inclined bench press (IBP: 45°) and declined bench press (DBP: - 30°), being the three evaluations carried out respecting 48 hours of break between the same. ResultsAfter the evaluations we identify the following results in the CVIM (162.65±18.63Kgf HPB, 155.02±11.97Kgf IPB and 163.90±15.77Kgf DPB) and we identify that do not statistically significant between exercises. When checking the differences recorded EMG to muscle the DA, in the exercises PBI and PBH, PBI and PBD. ConclusionThe results support, that the 2 portions of the greater pectoral muscle similarly are activated in the different angles of the press of banking, and that the IBP causes a greater activation of DA.