低氧训练适应过程中血氧饱和度作为运动强度评价指标的可行性研究

发布时间：2018-05-30 07:34

  本文选题：低氧训练 + 运动强度　； 参考：《北京体育大学》2012年硕士论文

【摘要】：研究目的：本研究通过对4周模拟海拔2500m的低氧训练期间摄氧量(V02)、心率(HR)、血氧饱和度(Sp02)、血乳酸(BLa)与运动强度(%V02max)之间关系进行分析,探讨低氧训练适应过程中运动强度评价的简易指标。 研究方法：北京体育大学18名国家二级男性运动员在模拟海拔2500m环境下进行4周的低氧训练,训练内容为自行车和跑台耐力运动。每周3次训练,每次100分钟。训练强度为70%V02max,采用血氧饱和度仪进行监控,控制Sp02在88-90%。分别于第1天、第2周末和第4周末让受试者在低氧环境下进行递增负荷运动至力竭,连续记录安静时、运动过程中Sp02、HR、V02及气体代谢指标。BLa在每级负荷结束前20秒采集。用一元线性回归方法推算低氧适应过程中Sp02与%V02max和BLa的回归方程。 结果：在前后3次低氧下的运动过程中,相同负荷运动时HR逐渐下降,且与运动强度(%V02max)呈良好相关。4周末测试时安静和90-180W负荷运动下的BLa明显低于急性低氧时(P0.05),而极量负荷下的BLa浓度明显高于急性低氧时(P0.01)。在3次测试中,相同负荷下运动时Sp02呈.逐渐上升趋势,且分别与%V02max和BLa旱良好相关。 低氧适应过程中用Sp02推测相对运动强度的方程如下：急性低氧时：%V02max=11.522-0.124×Sp02低氧训练2周后：%V02max=8.886-0.091×Sp02低氧训练4周后：%V02max=9.248-0.096×Sp02 低氧适应过程中用Sp02推测BLa的方程如下急性低氧时：BLa=91.562-0.97×Sp02低氧训练4周后：BLa=171.042-1.857×Sp02 结论：1)4周低氧训练过程中Sp02与%V02max和BLa呈现良好的相关,可以作为低氧训练过程中运动强度的非损伤性评价指标。2)急性低氧运动时Sp02与%V02max和BLa所建立的回归方程不能用于指导整个低氧训练过程,需要建立不同适应期的回归方程才能准确地评价低氧训练强度。
[Abstract]:Objective: to analyze the relationship between oxygen intake (V02N), heart rate (HRV), blood oxygen saturation (SP02T), blood lactate (BLaA) and exercise intensity (V02max) during 4 weeks hypoxia training at simulated altitude of 2500m. To discuss the simple index of exercise intensity evaluation in the process of hypoxic training adaptation. Methods: 18 national second-class male athletes from Beijing University of physical Education underwent hypoxic training at simulated altitude of 2500m for 4 weeks, which included cycling and treadmill endurance. Practice 3 times a week for 100 minutes. The training intensity is 70 and V02max. the blood oxygen saturation meter is used to monitor and control the Sp02 in 88-90. On day 1, weekend 2 and weekend 4, the subjects were subjected to exercise to exhaustion under hypoxic conditions. Sp02HRV02 and gas metabolism index .BLa were collected 20 seconds before the end of each stage of exercise. The regression equations of Sp02, V02max and BLa during hypoxic adaptation were calculated by using a linear regression method. Results: HR decreased gradually at the same load during 3 times of hypoxic exercise. There was a good correlation between V02maxand exercise intensity. 4 the BLa at quiet and 90-180 W load exercise during the weekend was significantly lower than that under acute hypoxia, while the concentration of BLa at extreme load was significantly higher than that at acute hypoxia. In three tests, Sp02 was present at exercise at the same load. The results showed that V02max and BLa were closely related to drought. The equation of relative exercise intensity estimated by Sp02 during hypoxic adaptation is as follows: in acute hypoxia, the 10% V02max1 is 11.522-0.124 脳 Sp02 hypoxic training 2 weeks later, V02max1 8.886-0.091 脳 Sp02 hypoxic training 4 weeks later: V02max9.248-0.096 脳 Sp02 Sp02 was used to infer the equation of BLa during hypoxic adaptation as follows: 1. 1. 562-0. 97 脳 Sp02 hypoxic training 4 weeks later, 1: BLa1. 042-1. 857 脳 Sp02 Conclusion during the 4-week hypoxic training, Sp02 has a good correlation with V02max and BLa. The regression equation established by Sp02 and V02max and BLa during acute hypoxia training can not be used to guide the whole hypoxic training process. It is necessary to establish regression equations for different adaptation periods in order to evaluate the intensity of hypoxic training accurately.
【学位授予单位】：北京体育大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R87

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