The Comparative Research To Evaluation Of Ordinary College Students' Maximal Oxygen Intake

Intention: Mensurating 32 male college students' Vo_2max directly with paotai firstly, then take it as a criterion, and research the forecast ofVo_2max with the methods of PWC₁₇₀,Astrand in line chart,Fox,12 minutes running,Ding zhenping and Chen wenyu comparatively. Toobtain more scientifical Vo_2max test methods and indirect calculate formula which suit for Chinese male college students, and provide a reference to evaluate aerobic exercise capacity and cardiovascular function, while do research in mass of mensurations to the physique of college students.Method: Dividing 32 volunteers of male college students into 7 groups randomly, adopting the cross test-operation and the mutualinterval is two weeks, utilize the direct method and six kinds of indirectmethod to measure Vo_2max.Results: (1) Comparing with the result of Vo_2max by the method of the six kinds of indirect method and the direct method, After the statistical analysis and found that: The result which is speculated by the three kinds of method(Astrand in line chart,Fox,Chen wenyu ) is more higher than the actual value, the result which is speculated by the two kinds of method (Ding zhenping,PWC₁₇₀) is more lower than the actual value, there have a statistically significant difference too. The result which is speculated by the method of 12 minutes running is more higher than the actual value, but no statistically difference (P> 0.05).(2) The results of Vo_2max by the method of the six kinds of indirect method and the direct method are taking related analysis, and showed that:The Vo_2max indirectly be calculated by the method of 12 minutes running is highest correlative to that mensurated directly, and the correlationcoefficient is 0.89 (P <0.01); The Vo_2max indirectly be calculated by themethods of Astrand in line chart is lowest correlative to that mensurated directly, and the correlation coefficient is 0.61 (P <0.01).Conclusion: (1)The results of Vo_2max by the method of the six kinds of indirect method and the direct method are taking related analysis, and showed that: 12 minutes running method's correlation coefficient is 0.89 (P <0.01) only, and The result which is speculated by the method of 12 minutes running is more higher than the actual value, but no significant difference (P> 0.05).So consider that the method of 12 min running iseffective,exact, and is a suitable indirect method to speculate Vo_2max forChinese college students.(2)The correlative degree between the method of Fox and the direct method is more higher, and have statistical significance, but the result of speculation is higher than the actual value. So we propose that we will becareful to speculate college students' Vo_2max by the method of fox.(3)The correlation coefficient of the methods of Astrand in line chart and Ding zhenping is not only smaller, but also the speculation is higher or lower than the actual value , and the difference have statisticalsignificance. So the two methods are not suitable to speculate Vo_2max for college students.