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[目的 ]评价运动状态下不同活动类型的体力负荷。 [方法 ]随机抽取 8名 2 0～ 3 0岁年龄组健康男性大学生作为研究对象 ,自统一早餐后 1h起 ,研究对象分别完成 7种类型活动 :静坐、行走 (80步 /min、10 0步 /min、13 0步 /min)、爬楼梯 (70阶 /min、90阶 /min、13 0阶 /min) ,每种活动类型测试 3～ 6min ,每项活动测试前 ,均应保证研究对象脉搏数恢复至静坐前水平 ,测试者采用K4b2 系统 (Cosmed ,罗马 ,意大利 )遥测模式测定氧耗量 (VO2 )、心率 (HR)、每分通气量 (VE)、单位体重氧耗量 (VO2 /kg)、能量代谢率 (EEkc)、单位体重能量代谢率 (EEkg)、单位体表面积能量代谢率 (EEbas)、代谢当量 (METS)等体力负荷评价指标。采用随机区组方差分析、Spearman等级相关分析和Pearson相关分析对不同活动类型体力负荷进行评价。 [结果 ]活动类型与体力负荷评价指标之间、体力负荷评价指标两两之间均有相关性 (P <0 0 1) ;从静坐、行走 (80步 /min、10 0步 /min、13 0步 /min)至爬梯 (70阶 /min、90阶 /min、13 0阶 /min) ,随着活动类型由静到动、活动速度由慢到快 ,VO2 、HR、VE、VO2 /kg、EEkc、EEkg、EEbas、METS等均表现出逐渐增高的趋势 ,并且差异有统计学意义 (P <0 0 1) ;同一活动随时间延长 ,VO2 、HR、
[Objective] To evaluate the physical load of different activity types under exercise condition. [Methods] Eight healthy male college students from 20 to 30 years old were randomly selected as the research object. From 1 hour after the unified breakfast, the subjects completed 7 types of activities: sitting, walking (80 steps / min, 10 0 steps / min, 13 0 steps / min), climb the stairs (70 steps / min, 90 steps / min, 13 0 steps / min), each activity type test 3 ~ 6min, each activity test should ensure that the study The pulse rate returned to the pre-seizure level. The test subjects measured oxygen consumption (VO2), heart rate (HR), minute ventilation (VE), and unit oxygen consumption (VO2) using the K4b2 system (Cosmed, Rome, Italy) / kg, EEkc, EEkg, EEbas, METS and so on. Randomized block analysis of variance, Spearman rank correlation analysis and Pearson correlation analysis were used to evaluate the physical load of different types of activities. [Results] There was a significant correlation between the type of activity and the assessment of physical exertion and the assessment of physical exertion (P <0.01) VO2, HR, VE, VO2 / kg as the activity type changes from standstill to 0 steps / min to 70 steps / min, 90 steps / min, 13 0 steps / , EEkc, EEkg, EEbas, METS, etc. showed a trend of gradual increase, and the difference was statistically significant (P <0.01); the same activity over time, VO2, HR,