不同速度自行车骑行气体代谢与能量消耗研究

Study on Gaseous Metabolism and Energy Expenditure of Cycling at Different Speed

DOI：

英文关键词:cycling energy expenditure oxygen uptake aerobic exercise

基金项目:上海市科委科研计划项目课题（12DZ2294400）

作者	单位
王道	上海体育科学研究所
徐亮亮	上海体育科学研究所
王晶晶	上海体育科学研究所
王静	上海体育科学研究所
朱建中	上海体育科学研究所
刘欣	上海体育科学研究所

摘要点击次数: 2836

全文下载次数: 3013

中文摘要:

目的：通过测定自行车4种不同骑速时的人体能量消耗，分析能耗特点，提出适宜不同人群有氧健身锻炼为目的骑行速度和方案。方法：以100名年轻健康人群和7名老年骑游队员为实验对象，采用CORTEX-3B便携式气体代谢分析仪对受试者10 km/h、13 km/h、15 km/h、18 km/h 4种不同速度自行车骑行的能量消耗进行测试，每个速度测试6 min，取最后2 min稳态数据。结果：（1）无论男女，随着骑行速度的增加，心率（HR）、摄氧量（VO2）、能耗（EE）、代谢当量（METs）等指标均逐渐上升，当骑速从15 km/h增加到18 km/h时，上升最明显，且METs值超过6；（2）相同骑速时，男性VO2、EE均高于女性，而男女之间相对摄氧量（VO2/kg）、相对能耗（EE/kg）、METs均无明显差异；（3）10~15 km/h骑速时，男女之间呼吸商（R）值无明显差异，18 km/h时，女性R值高于男性且超过1；（4）无论男女，13~15 km/h骑行时，大部分受试者属于中等强度运动。（5）10 km/h骑速时，超重人群的VO2/kg、EE/kg、METs均明显低于低体重和正常体重两类人群，13~18 km/h时，上述指标总体表现为低体重人群＞正常人群＞超重人群。结论：（1）相同骑速时，男性能耗水平大于女性，超重人群＞正常人群＞低体重人群；单位体重下，男女之间能耗水平无明显差异，低体重人群＞正常人群＞超重人群。（2）男性15~18 km/h，女性13~15 km/h可以作为中等强度有氧锻炼骑行速度的参考标准，但在具体实践过程中也应考虑年龄、超重/肥胖、锻炼水平等个体差异。（3）建议在适宜速度下，每周骑行5次，每次至少30 min连续骑行，并且保持长期骑行锻炼的习惯。

英文摘要:

Objective: The purpose of this paper is to find appropriate riding speed and exercise programs for the aerobic exercise of different groups by analyzing the characteristics of energy consumption when riding at four different speed. Method: 100 healthy youngsters and 7 old riders were selected as the subjects. Energy consumption was measured for 6 minutes by CORTEX-3B at the speed of 10km/h, 13 km/h, 15 km/h and 18/ km/h respectively, and the steady data of the last 2 minutes were used for the analysis. Result: (1) In both male and female, with the increase of speed, HR、VO2、EE and METs gradually increased. When the speed increased from 15 to 18km/h, those indicators rose evidently, and the value of METs exceeded 6. (2) While riding with same speed, VO2 and EE of the male were higher than those of the female. But there was no significant difference between the male and the female in EE/kg, METs and VO2/kg. (3) There was no significant difference between the male and the female in R at the speed of 10-15km/h, but when the speed was 18km/h, R of the female was higher than that of the male (R>1). (4) For most of the subjects, the riding intensity at 13-15km/h was moderate, whether the male or the female. (5) When riding at the speed of 10km/h, VO2/kg、EE/kg and METs of the overweight subjects were apparently lower than those of the low-weight and normal-weight subjects, and at the speed of 13-18km/h, those indexes generally showed the tendency of low-weight riders > normal-weight riders > overweight riders. Conclusion: (1) Riding at the same speed, EE of the male is higher than that of the female, and EE also shows the phenomenon of overweight people > normal weight people > low weight people. But there is no significant difference between the male and the female in EE/kg, which shows the phenomenon of low weight people > normal weight people > overweight people. (2) 15-18km/h(male) and 13-15km/h(female) can be used as a reference for moderate intensity aerobic riding exercise, but the individual difference of age, overweight/obesity and exercise should also be taken into account in practice. (3) It is suggested that with appropriate speed, people can ride for 5 times a week and at least 30 minutes each time. Long-term riding exercise is beneficial.

查看全文查看/发表评论下载PDF阅读器

关闭