Cimadoro Giuseppe, Mahaffey Ryan, Babault Nicolas
School of Sport Health and Applied Science, Strength and Conditioning Science, St Mary's University, Twickenham, London, UK -
School of Sport Health and Applied Science, Sport Science, St Mary's University, Twickenham, London, UK.
J Sports Med Phys Fitness. 2019 Feb;59(2):204-209. doi: 10.23736/S0022-4707.18.08295-6. Epub 2018 Apr 4.
Muay Thai fighters strongly rely on the use of the roundhouse kick due to its effectiveness (i.e. power) and implications on the final score. Therefore, different striking tempos at full power are used during training as a method to enhance kicking power. However, the neuromuscular responses are unknown. Thus, the goal of this study was to investigate neuromuscular responses to a single bout of shorter (every second = H1) and longer (every 3 s = H3) kick striking time intervals, measured with the countermovement jump (CMJ).
Nine professional Muay Thai fighters participated in this randomized, cross-over trial. CMJs were measured on force plates before and after (at 0, 5, 10, 20, and 30 minutes) two striking (1 set ×20 reps) conditions (H1; H3).
Although no difference was observed between H1 and H3 values, neuromuscular fatigue parameters displayed different patterns over time. CMJ height decreased immediately after H3 striking (P<0.05), whereas for H1 condition CMJ height decreased from 20 minutes as compared to baseline (P<0.05). Peak force in H3 condition was significantly lower at 10, 20, and 30 minutes as compared to baseline. For H1, peak force values were lower than baseline only at 30 minutes. Peak power was significantly lower than baseline for both middle kick procedures. A slight but significant increase was observed at 5 minutes for H3 condition but decreased further at 10 minutes and remained constant during subsequent tests. In contrast, for H1 condition, peak power remained unaffected after 10 minutes, whereas it decreased at 20 and 30 minutes only when compared to minute 0.
Results showed that both kick striking modes provoke comparable neuromuscular fatigue but H3 condition showed the potential to induce post activation potentiation. Muay Thai and conditioning coaches should focus on hard striking with both long and slow pacing during specific heavy bag or pad work.
泰拳选手高度依赖回旋踢的运用，因为其具有有效性（即力量）且对最终得分有影响。因此，训练期间会采用不同的全力击打节奏作为增强踢击力量的一种方法。然而，神经肌肉反应尚不清楚。因此，本研究的目的是通过反向移动跳（CMJ）来探究单次短时间（每秒一次 = H1）和长时间（每3秒一次 = H3）踢击时间间隔对神经肌肉的反应。
九名职业泰拳选手参与了这项随机交叉试验。在两种击打（1组×20次重复）条件（H1；H3）前后（0、5、10、20和30分钟）在测力板上测量CMJ。
尽管H1和H3的值之间未观察到差异，但神经肌肉疲劳参数随时间呈现不同模式。H3击打后CMJ高度立即下降（P<0.05），而对于H1条件，与基线相比，CMJ高度从20分钟开始下降（P<0.05）。与基线相比，H3条件下的峰值力在10、20和30分钟时显著降低。对于H1，峰值力值仅在30分钟时低于基线。两种踢击程序的峰值功率均显著低于基线。H3条件下在5分钟时观察到轻微但显著的增加，但在10分钟时进一步下降，并在随后的测试中保持不变。相比之下，对于H1条件，10分钟后峰值功率保持不变，而仅在与第0分钟相比时，在20和30分钟时下降。
结果表明，两种踢击模式都会引发相当的神经肌肉疲劳，但H3条件显示出诱导激活后增强的潜力。泰拳和体能教练在特定的沙袋或靶垫训练中应注重长时间、慢节奏的强力击打。
