De Andrade Junior Antonio B, De Andrade Elena M P R, Dos Santos Vigário Patrícia, Luchesa Cesar A, De Azevedo Vieira João E, De Jesus Igor R T, Lopes Agnaldo J
Rehabilitation Sciences Postgraduate Program, Augusto Motta University Center (UNISUAM), Rio de Janeiro, Brazil.
Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil.
Int J Exerc Sci. 2025 May 1;18(6):428-442. doi: 10.70252/PPGL4101. eCollection 2025.
In martial arts, heart rate variability (HRV) measurements can potentially be used to assess injury risk and susceptibility to fatigue. Muay Thai uses the Frequency Speed of Kick Test (FSKT) to measure kick speed, but it is unknown whether better fitness results in improved autonomic function and body composition, which may affect athletic performance and recovery. We aimed to evaluate the correlations between FSKT, HRV, and body composition measures in amateur Muay Thai fighters. This is a cross-sectional study with 37 Muay Thai fighters. They underwent FSKT-10s and multiple FSKT to measure the kick fatigue index (KFI). In addition, body composition was assessed using bioelectrical impedance analysis and HRV using a heart rate monitor. When comparing the values before and during the FSKT-10s, there was a decrease in the percentage of interval differences of consecutive successive NN intervals greater than 50 ms (pNN50), approximate entropy, and parasympathetic nervous system (PNS) index, with an increase in the sympathetic nervous system (SNS) index. The number of kicks assessed by FSKT-10s positively correlated with fat-free mass (FFM) and low frequency (LF) of the HRV assessment. The KFI correlated negatively with the FFM and PNS index, and positively with the LF and SNS index. When amateur Muay Thai fighters perform the FSKT-10s, there is an acute effect on autonomic modulation with increased sympathetic activation and vagal withdrawal. FFM and sympathetic activation are related to performance and susceptibility to fatigue. These results indicate the importance of assessing HRV in Muay Thai fighters to improve performance.
在武术领域，心率变异性（HRV）测量有可能用于评估受伤风险和疲劳易感性。泰拳采用踢击频率速度测试（FSKT）来测量踢击速度，但尚不清楚更好的身体素质是否会带来自主神经功能和身体成分的改善，而这可能会影响运动表现和恢复能力。我们旨在评估业余泰拳选手的FSKT、HRV和身体成分测量之间的相关性。这是一项针对37名泰拳选手的横断面研究。他们接受了10秒FSKT和多次FSKT以测量踢击疲劳指数（KFI）。此外，使用生物电阻抗分析评估身体成分，并使用心率监测器测量HRV。在比较10秒FSKT前后的值时，连续相邻NN间期差值大于50毫秒的百分比（pNN50）、近似熵和副交感神经系统（PNS）指数有所下降，而交感神经系统（SNS）指数有所上升。10秒FSKT评估的踢击次数与无脂肪质量（FFM）和HRV评估的低频（LF）呈正相关。KFI与FFM和PNS指数呈负相关，与LF和SNS指数呈正相关。当业余泰拳选手进行10秒FSKT时，对自主神经调节有急性影响，交感神经激活增加，迷走神经活动减弱。FFM和交感神经激活与运动表现和疲劳易感性有关。这些结果表明在泰拳选手中评估HRV对提高运动表现的重要性。
