Department of Biosurgery and Surgical Technology.
Department of Clinical Neuroscience, Faculty of Medicine, Imperial College , London, UK.
J Sports Sci Med. 2006 Jul 1;5(CSSI):5-12. eCollection 2006.
The purpose of this study was to investigate trunk and knee strength in practitioners of hard-style martial arts. An additional objective was to examine reaction times in these participants by measuring simple reaction times (SRT), choice reaction times (CRT) and movement times (MT). Thirteen high-level martial artists and twelve sedentary participants were tested under isokinetic and isometric conditions on an isokinetic dynamometer. Response and movement times were also measured in response to simple and choice auditory cues. Results indicated that the martial arts group generated a greater body-weight adjusted peak torque with both legs at all speeds during isokinetic extension and flexion, and in isometric extension but not flexion. In isokinetic and isometric trunk flexion and extension, martial artists tended to have higher peak torques than controls, but they were not significantly different (p > 0.05). During the SRT and CRT tasks the martial artists were no quicker in lifting their hand off a button in response to the stimulus [reaction time (RT)] but were significantly faster in moving to press another button [movement time (MT)]. In conclusion, the results reveal that training in a martial art increases the strength of both the flexors and extensors of the leg. Furthermore, they have faster movement times to auditory stimuli. These results are consistent with the physical aspects of the martial arts. Key PointsMartial artists undertaking hard-style martial arts have greater strength in their knee flexor and extensor muscles as tested under isokinetic testing. Under isometric testing conditions they have stronger knee extensors only.The trunk musculature is generally higher under both conditions of testing in the martial artists, although not significantly.The total reaction times of the martial artists to an auditory stimulus were significantly faster than the control participants. When analysed further it was revealed that the decrease in reaction time was due to the movement time component of the total reaction time.The training involved for the practice of the hard-style martial arts increases the strength of muscles involved in kicking. This increased strength is not seen in the trunk muscles. Furthermore, martial artists have a faster response time; the cause of which appears to be only the faster movement time.
本研究旨在探讨硬式武术练习者的躯干和膝关节力量。另一个目的是通过测量简单反应时间（SRT）、选择反应时间（CRT）和运动时间（MT）来检测这些参与者的反应时间。13 名高水平武术家和 12 名久坐参与者在等动测力计上进行等速和等长测试。还测量了对简单和选择听觉提示的反应和运动时间。结果表明，武术组在等速伸展和屈曲时，双腿在所有速度下都产生了更大的体重调整峰值扭矩，并且在等长伸展但不在等长屈曲时也是如此。在等速和等长躯干屈伸中，武术运动员的峰值扭矩往往高于对照组，但差异无统计学意义（p>0.05）。在 SRT 和 CRT 任务中，武术运动员在听到刺激后（反应时间[RT]）抬起手离开按钮的速度并没有更快，但他们在移动到按下另一个按钮的速度更快[运动时间（MT）]。总之，结果表明，武术训练增加了腿部屈肌和伸肌的力量。此外，他们对听觉刺激的运动时间更快。这些结果与武术的身体方面一致。关键点：从事硬式武术的武术运动员在等速测试中，其膝关节屈肌和伸肌的力量更强。在等长测试条件下，他们只有更强的膝关节伸肌。在两种测试条件下，武术运动员的躯干肌肉都更高，尽管差异无统计学意义。武术运动员对听觉刺激的总反应时间明显快于对照组。进一步分析表明，反应时间的缩短是由于总反应时间的运动时间成分。硬式武术练习所涉及的训练增加了踢腿相关肌肉的力量。这种力量的增加在躯干肌肉中没有看到。此外，武术运动员的反应时间更快；其原因似乎只是运动时间更快。
