Sport and Exercise Research Group, Edge Hill University, Ormskirk, United Kingdom.
Int J Sports Med. 2013 Jul;34(7):573-81. doi: 10.1055/s-0032-1327578. Epub 2013 Jan 7.
The aim of this study was to determine the external validity of Taekwondo-specific exercise protocols. 10 male international Taekwondo competitors (age 18±2 years) took part in a championship combat and an exercise protocol that simulated the activity pattern of Taekwondo combat. Heart rate and venous blood samples were obtained in both settings. Despite similarity in the activity profiles, the championship Taekwondo combats elicited higher (p<0.05) heart rate (188±8 beats.min - 1), plasma lactate (12.2±4.6 mmol.L - 1), glucose (10.3±1.1 mmol.L - 1), -glycerol (143.4±49.4 µmol.L - 1), -adrena-line (2.7±1.7 nmol.L - 1) and noradrenaline (14.3±9.4 nmol.L - 1) responses than the -Taekwondo exercise protocol (heart rate: 172±4 beats.min - 1; plasma lactate: 3.6±2.7 mmol.L - 1; glucose: 5.9±0.8 mmol.L - 1; glycerol: 77.7±21.3 µmol.L - 1; adrenaline: 0.6±0.2 nmol.L - 1 and noradrenaline: 3.0±1.1 nmol.L - 1). This discrepancy in the physiological responses appeared to be mediated by a reduced stress response in the Taekwondo exercise protocol. These findings suggest that Taekwondo-specific exercise protocols are not appropriate to study the physiological demands of Taekwondo. -Strategies designed to increase the stress response in this setting may be necessary to improve the external validity of this experimental framework.
本研究旨在确定跆拳道专项运动方案的外部有效性。10 名男性国际跆拳道选手（年龄 18±2 岁）参加了锦标赛战斗和一项模拟跆拳道战斗活动模式的运动方案。在这两种情况下，均采集了心率和静脉血样。尽管活动模式相似，但跆拳道锦标赛战斗引起的心率（188±8 次/分钟）、血浆乳酸（12.2±4.6mmol/L）、血糖（10.3±1.1mmol/L）、甘油（143.4±49.4μmol/L）、肾上腺素（2.7±1.7nmol/L）和去甲肾上腺素（14.3±9.4nmol/L）反应均高于跆拳道专项运动方案（心率：172±4 次/分钟；血浆乳酸：3.6±2.7mmol/L；血糖：5.9±0.8mmol/L；甘油：77.7±21.3μmol/L；肾上腺素：0.6±0.2nmol/L；去甲肾上腺素：3.0±1.1nmol/L）。这种生理反应的差异似乎是由跆拳道专项运动方案中应激反应的降低引起的。这些发现表明，跆拳道专项运动方案不适合研究跆拳道的生理需求。在这种情况下，设计增加应激反应的策略可能对于提高该实验框架的外部有效性是必要的。
