RESUMOIntrodução: Diferentes ordens no sequenciamento dos exercícios na musculação podem afetar o desempenho neuromuscular. Objetivo: Investigar o efeito da ordem dos exercícios de musculação (pré-exaustão, (PE) e tradicional, (TR) sobre o desempenho e atividade muscular de peitoral maior (PM) e tríceps braquial (TB) durante a realização dos exercícios de supino reto (SR) e tríceps na polia (TP). Métodos: A amostra foi composta de 14 homens treinados (idade: 25±4 anos, estatura: 175±4 cm, massa: 80±11 kg). O experimento foi conduzido em duas sessões. Na primeira, foi realizada a familiarização e determinação de 10 repetições máximas (RM) nos exercícios SR e TP. A segunda foi dividida em duas fases. A primeira fase avaliou o desempenho dos exercícios isoladamente, considerado o controle (CON). A segunda fase, avaliou duas diferentes ordens de exercícios: pré-exaustão, PE (TP e SR) e tradicional, TRAD (SR e TP). Foram avaliados o desempenho e a atividade muscular do PM e TB. One-way ANOVA foi utilizada para comparar as condições. ANOVA (2x3) de medidas repetidas foi utilizada para comparar a atividade muscular. Resultados: Os resultados demonstraram um menor número de RM no TP na condição TRAD em comparação com CON e PE. Foi observado um menor número de RM no exercício SR na condição PE em comparação com CON e TRAD. Quanto à atividade muscular avaliada pela eletromiografia integrada não foram observadas diferenças significantes para PM e TB durante a realização dos exercícios em todas as condições. Conclusão: Conclui-se que em ambas as estratégias o número de RM realizadas no segundo exercício foi reduzida, entretanto não foram observadas alterações na ativação dos músculos principais de cada exercício.Descritores: eletromiografia, força muscular, treinamento de força. : pre-exhaustion, PE (TE and BP) and traditional, TRAD (BP and TE). ABSTRACT Introduction: Different orders in exercise sequences during resistance training can affect neuromuscular performance. Objective: To investigate the effect of resistance training exercises (pre-exhaustion and traditional) on the performance and muscle activity of pectoralis major (PM) and triceps brachii (TB) during execution of bench press (BP) and triceps extension (TE) exercises. Methods: The sample was composed by 14 trained men (age: 25±4 years, height: 175±4 cm, weight: 80±11 kg). The experiment was carried out in two sessions. In the first, familiarization and determination of 10 repetition maximum (RM) of BP and TE exercises were carried out. The second was divided in two phases. The first evaluated exercise performance separately (control condition, CON). The second evaluated two different exercise orders
Aim: The purpose of this study was to compare the acute neuromuscular and metabolic responses between strength (S), hypertrophy (H), and power (P) resistance training protocols in the elbow flexors. Methods: Fourteen resistance trained men (age: 25 ± 4 years, body mass: 79.5 ± 9 kg, height: 177 ± 4cm) volunteered to participate. They attended four sessions separated by at least one week. On the first session, they performed a one repetition maximum (1RM) test for the standing barbell curl exercise. On the following three sessions, the training protocols were randomized to either a S (11 sets of 3 repetitions, 90% 1RM, 5-minute rest), H (4 sets of 10 repetitions, 75% 1RM, 90-second rest), or P (8 sets of 6 repetitions, 30% 1RM, 3-minute rest). Peak force (PF) and biceps brachii muscle activity (EMG) were quantified before and after each session via maximal voluntary isometric contraction of the elbow flexors. Blood samples were taken before and at 0, 3, 5, 10, 15 and 30 minutes after each session to measure the concentration of blood lactate (BL). Results: Higher total volume load (VL) in the S protocol compared to H (577.5±142.2 vs 568.5±133.3, P=0.03, respectively), and S compared to P (577.5±142.2 vs 294.8±67.5, P=0.001, respectively). Additionally, H showed higher VL compared to P (P=0.001). Conclusion: This study showed that the equated load between muscular strength and hypertrophy protocols compromised the neuromuscular and metabolic performance after single-joint exercise for upper limbs.
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