Fukuoka Y, Shigematsu M, Itoh M, Fujii N, Homma S, Ikegami H
Faculty of Human Life Sciences, Prefectural University of Kumamoto, Japan.
J Sports Med Phys Fitness. 1997 Sep;37(3):161-7.
The purpose of this study was to evaluate the effects of football training on maximal oxygen uptake (VO2max), ventilatory threshold (VT) and kinetics of ventilation and gas exchange variables to sinusoidal work load. The sinusoidal work load during cycling exercise was varied from 30 watts to 60% of VO2max (60% VO2max) with a period of 2 min. O2 uptake (VO2), CO2 output (VCO2), minute ventilation (VE) and heart rate (HR) were measured on a breath-by-breath basis using a computer system. Training periods were continued for 9 months. Six males who had no football experience were performed in which VO2max, VT, and the kinetics of each variable were measured for 3-month intervals (PRE, TR.3, TR.6, and TR.9). They usually underwent football training, such as sprint and strength training for 2-3 hours day-1, 6 days week-1. Mean VO2max was significantly increased at TR.3 and TR.6. VT was also significantly increased during the training period. The amplitude of VO2, VCO2, VE, and HR responses during sinusoidal exercise unchanged during the training period. Phase shifts to work load in VO2 and HR responses did not significantly change during the 9 months, but the phase shift in VCO2 and VE responses significantly continued increasing as the training intervals progressed. These results suggest that football training does not significantly affect the development of the kinetics of VO2 and HR during submaximal exercise, but that it dramatically increases VO2max and VT values.
本研究的目的是评估足球训练对最大摄氧量（VO2max）、通气阈值（VT）以及通气和气体交换变量对正弦工作负荷的动力学影响。骑行运动期间的正弦工作负荷从30瓦变化至VO2max的60%（60%VO2max），周期为2分钟。使用计算机系统逐次呼吸测量摄氧量（VO2）、二氧化碳排出量（VCO2）、分钟通气量（VE）和心率（HR）。训练期持续9个月。对6名无足球经验的男性进行研究，每隔3个月（训练前、训练3个月、训练6个月和训练9个月）测量VO2max、VT以及各变量的动力学。他们通常每天进行2 - 3小时的足球训练，每周6天，包括短跑和力量训练。训练3个月和6个月时，平均VO2max显著增加。训练期间VT也显著增加。训练期间，正弦运动期间VO2、VCO2、VE和HR反应的幅度没有变化。9个月内，VO2和HR反应对工作负荷的相位偏移没有显著变化，但随着训练间隔的推进，VCO2和VE反应的相位偏移显著持续增加。这些结果表明，足球训练对次最大运动期间VO2和HR动力学的发展没有显著影响，但能显著提高VO2max和VT值。
