Optimal Load for the Peak Power and Maximal Strength of the Upper Body in Brazilian Jiu-Jitsu Athletes

• da Silva, Bruno Victor C. ^[2] ; de Moura Simim, Mário A. ^[2] ; Marocolo, Moacir ^[2] ; Franchini, Emerson ^[1] ; da Mota, Gustavo R. ^[2]
  1. [1] Universidade de São Paulo

     Universidade de São Paulo

     Brasil

     
  2. [2] Federal University of Triangulo Mineiro
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 29, Nº. 6, 2015, págs. 1616-1621
• Idioma: inglés
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• Dialnet Métricas: 6 Citas
• Resumen

  • We determined the optimal load for the peak power output (PPO) during the bench press throw (BPT) in Brazilian Jiu-Jitsu (BJJ) athletes and compared the PPO and maximal strength between advanced (AD) and nonadvanced (NA) athletes. Twenty-eight BJJ athletes (24.8 ± 5.7 years) performed the BPT at loads of 30, 40, 50, and 60% of their 1 repetition maximum (RM) in a randomized order (5-minute rest between BPTs). The PPO was determined by measuring the barbell displacement by an accelerometer (Myotest). The absolute (F = 7.25; p < 0.001; effect size [ES] = 0.21) and relative intensities were different (F = 7.11; p < 0.001; ES = 0.21) between the AD and NA. There was also a group and intensity interaction effect (F = 2.79; p = 0.046; ES = 0.10), but the differences were centered around the AD group, which achieved higher values using 40% (p = 0.001) and 50% of the 1RM (p < 0.001) than the PPO with 60% of 1RM. The AD athletes presented with higher 1RM than NA (p <= 0.05; ES = 1.0), but there was no difference (p > 0.05) in the PPO (30–60% 1RM). A polynomial adjustment indicated that the optimal load was ~42% of 1RM for all groups and subgroups (R2 from 0.82 to 0.99). Our results suggest that there can be (1RM) differences between AD and NA BJJ athletes; however, there is no difference in the muscle power between the AD and NA groups. Additionally, ~42% of 1RM seems to be the optimal load for developing maximal power using the BPT for the BJJ athletes.