O teste isométrico de tração do meio da coxa está associado ao desempenho competitivo de atletas de alto nível de caratê e Taekwondo? Uma comparação entre medalhistas e não medalhistas

Abstract

The isometric mid-thigh pull test (IMTP) is commonly used in sports performance assessment but remains underutilized among combat sports athletes. Objectives: to evaluate whether Pan American medalists (PM) presented differences when compared to non-medalist (NM) athletes in performing the IMTP. Methods: 72 karate [n=35 (♀ 12)] and Taekwondo [n=37 (♀ 15)] athletes (22.4±3.7 years; 67.4±11.5 kg; 1.7±0.1 m; 22.1±2.8 kg/m2) were measured. Of the total, 32 athletes were PMs of their specific combat sport (♀ 11). All participants performed the IMTP 60-90 days before the competition. The following variables were measured: a) Net Impulse at 50; 100; 150 and 200 ms (N*s); b) absolute (N) and relative peak force (PF; N/Kg) and; c) Force development classification (RFD) in 50; 100; 150 and 200 ms (N/s). Results: the PM showed better performance in the absolute (2,398.5±623.1 vs. 2,096.2±559.3 N; p=0.034) and relative (34.6±5.0 vs. 31.2±5.1 N/Kg; p=0.006) PF; RFD at 150 (5,273.4±2,670.8 vs. 3,963.4±1,904.2 N/s; p=0.0018) and 200 ms (4,870.3±2,184.6 vs. 4,022.1±1,574.8 N/s; p=0.05). Relative PF (Τ =0.249; p=0.011) and RDF at 150 ms (Τ =0.208; p=0.033) showed a positive and significant correlation with the competition result. Conclusion: PM showed high PF and RFD at 150 and 200 ms. Furthermore, the competition result was correlated with relative PF and RDF at 150 ms. Based on our findings, we recommend that coaches incorporate the IMTP into their routine assessment of striking athletes.