Coutts Aaron J, Slattery Katie M, Wallace Lee K
School of Leisure, Sport and Tourism, University of Technology, Sydney, Australia.
J Sci Med Sport. 2007 Dec;10(6):372-81. doi: 10.1016/j.jsams.2007.02.007. Epub 2007 Apr 26.
Few studies have described simple tests which can be used to provide an early warning of overreaching. The purpose of this study was to examine selected practical tests for monitoring changes in performance, fatigue and recovery of endurance athletes. Sixteen male triathletes were randomly assigned into matched groups. The normal training (NT) and intensified training (IT) groups completed 4 weeks of training followed by a 2-week taper. Physiological measures were taken pre- and post-overload and post-taper periods during an incremental treadmill test to exhaustion. Performance was assessed weekly using a 3-km run time trial (3 kmTT). Five-bound jump for distance (5BT) and submaximal running heart rate (HR(submax)) test were measured twice weekly and the Daily Analyses of Life Demands for Athletes (DALDA) were recorded. During the overload training period, the IT group completed approximately 290% more training load than the NT group (p<0.001). After the overload training period, 3kmTT in the IT group was reduced compared to both pre-training (3.7%, p<0.05) and the NT group (6.8%, p<0.05). 5BT was decreased by 7.9% in the IT group following the overload period (p<0.05). The IT group also demonstrated increases in stress reaction symptoms from the DALDA. Following the taper, the IT group improved 3 kmTT. In contrast, the performance, physiological and psychological markers of NT group remained relatively unchanged throughout the 6-week training period. There were weak significant correlations between weekly changes in 3 kmTT and 5BT (r=-0.37, p<0.01). The DALDA and 5BT may be practical tests for assessing changes in performance, fatigue and recovery of endurance athletes.
很少有研究描述过可用于提供过度训练早期预警的简单测试。本研究的目的是检验一些选定的实用测试,以监测耐力运动员的运动表现、疲劳和恢复情况的变化。16名男性铁人三项运动员被随机分为配对组。正常训练(NT)组和强化训练(IT)组进行了4周的训练,随后是2周的减量期。在递增式跑步机测试至 exhaustion 前、过载后和减量期后,测量生理指标。每周使用3公里跑计时赛(3 kmTT)评估运动表现。每周两次测量立定跳远(5BT)和次最大跑步心率(HR(submax)),并记录运动员生活需求每日分析(DALDA)。在过载训练期,IT组完成的训练负荷比NT组多约290%(p<0.001)。过载训练期后,IT组的3kmTT与训练前相比降低了(3.7%,p<0.05),与NT组相比降低了(6.8%,p<0.05)。过载期后,IT组的5BT下降了7.9%(p<0.05)。IT组的DALDA压力反应症状也有所增加。减量期后,IT组的3 kmTT有所改善。相比之下,NT组的运动表现、生理和心理指标在6周训练期内保持相对不变。3 kmTT和5BT的每周变化之间存在弱显著相关性(r=-0.37,p<0.01)。DALDA和5BT可能是评估耐力运动员运动表现、疲劳和恢复情况变化的实用测试。