CAJ | 학술논문

通过测试10名体育专业学生在正常与模拟1 000、1 500 m低氧环境下进行递增负荷运动中气体代谢、血乳酸等指标变化,观察低氧对机体乳酸阅和通气阈的影响.结果显示:1)三种环境下,通气阈分别是:(720.0±71.8)s、(631.1±60.1)s、(616.0±40.0)s;乳酸阈时间是(826.67±72.11)s、(816.00±94.66)s、(744.00±94.66)s.2)随着氧分压的降低,通气阈均早于乳酸阈出现,通气阈和乳酸阈时各指标的绝对值下降,但其百分比值变化不大.3)正常环境下,乳酸阈和通气阈的相关性系数r>0.65(P<0.05),但模拟1 000 m与模拟1 500 m相关性系数r<0.60(P>0.05).结论:1)通气阈和乳酸阈的指标及其百分比值可以用来衡量或评价运动训练效果、指导运动训练;2)进入较高海拔后,应适当调整运动强度,以适应环境的变化.
통과측시10명체육전업학생재정상여모의1 000、1 500 m저양배경하진행체증부하운동중기체대사、혈유산등지표변화,관찰저양대궤체유산열화통기역적영향.결과현시:1)삼충배경하,통기역분별시:(720.0±71.8)s、(631.1±60.1)s、(616.0±40.0)s;유산역시간시(826.67±72.11)s、(816.00±94.66)s、(744.00±94.66)s.2)수착양분압적강저,통기역균조우유산역출현,통기역화유산역시각지표적절대치하강,단기백분비치변화불대.3)정상배경하,유산역화통기역적상관성계수r>0.65(P<0.05),단모의1 000 m여모의1 500 m상관성계수r<0.60(P>0.05).결론:1)통기역화유산역적지표급기백분비치가이용래형량혹평개운동훈련효과、지도운동훈련;2)진입교고해발후,응괄당조정운동강도,이괄응배경적변화.
By measuring the changes of such indexes as gas metabolism and blood lactic acid of 10 students major- ing in physical education during load gradually increased exercising in normal and simulated 1,000m and 1,500m hypoxie environments, the authors observed the effects of hypoxia on the body's lactic acid threshold and ventila- tion threshold, and revealed the following findings: 1) in the three environments, the ventilation thresholds are (720.0±71.8) s, (631.1±60.1) s and (616.0±40) s respectively; the lactic acid threshold times are (826.67±72.11) s, (816.00±94.66) s and (744.00±94.66) s; 2) with the decrease of partial oxygen pressure, the ventilation threshold appeared earlier than the lactic acid threshold, and the absolute value of such indexes as ventilation threshold and lactic acid threshold decreased, but their percentage changed little; 3) in a normal environment, the coefficient of correlation between lactic acid threshold and ventilation threshold r>0.65(P<0.05), but in simulated 1,000m and 1,500m hypoxic environments, r<0.60(P>0.05). Conclusions: 1) such indexes as ventilation threshold and lactic acid threshold as well as their percentage can be used to measure or evaluate sports training effects and to guide sports training; 2) for training in a place at a higher altitude, the exercise intensity should be appropriately adjusted, so that the athletes can adapt to the change of environment.