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目的:探讨骑车机械效率(GE)和骑车氧耗经济性(CE)与机体摄氧能力之间的关系。方法:16名男子自行车运动员进行自行车递增负荷练习,测试受试者每级负荷的骑车机械效率、骑车氧耗经济性和最大摄氧量。结果:从GE120开始,每级负荷的GE和CE与相对最大摄氧量(ml/min/kg)均呈现一定的负相关(P<0.05),GE360和CE360与最大摄氧量相对值(ml/min/kg)的相关系数分别高达-0.871(P<0.01)和-0.861(P<0.01),每级负荷的GE和CE与最大摄氧量绝对值(ml/min)均不存在相关。结论:个体之间,在中等强度以上最大有氧负荷强度范围内,机体的GE和CE与机体相对最大摄氧量呈现一定的负相关,有氧运动过程中机体运动的GE和CE与机体摄氧能力的强弱有一定关系。
Objective: To explore the relationship between mechanical efficiency (GE) and cycling economy (CE) and oxygen uptake capacity of the body. Methods: Sixteen male cyclists exercised their bicycles to carry out incremental loading tests, and tested the mechanical efficiency of cycling, the economy of cycling oxygen consumption and the maximum oxygen uptake of each load of subjects. RESULTS: Starting from GE120, GE and CE at each load showed a certain negative correlation (P <0.05) with the relative maximal oxygen uptake (ml / min / kg), and the relative values of GE360 and CE360 with the maximal oxygen uptake / min / kg) were -0.871 (P <0.01) and -0.861 (P <0.01) respectively. There was no correlation between GE and CE of each load and absolute maximum oxygen uptake (ml / min). CONCLUSIONS: Between individuals, within the range of maximum aerobic load intensity above moderate intensity, there is a certain negative correlation between the body’s GE and CE and the relative maximum oxygen uptake. During the aerobic exercise, GE and CE and body motion The strength of oxygen capacity has a certain relationship.