Maksud M G, Baron A
Eur J Appl Physiol Occup Physiol. 1980;43(2):127-34. doi: 10.1007/BF00422443.
Several physiologic responses to graded exercise were determined in four groups of young adult blue-collar workers identified as users of (1) marijuana, (2) cigarettes, (3) both marijuana and cigarettes, or (4) neither substance. Using covariate analysis of variance to control for race, age, height and weight, the groups did not differ in estimated percent fat, lean body mass, hematocrit levels, or blood hemoglobin values. Heart rate and oxygen consumption responses also were similar at all levels of exercise. The mean minute ventilation and perceived exertion were found to be higher in cigarette smokers than non-smokers of cigarettes but aerobic power and the physical work capacity did not differ. The differences in pulmonary function observed suggest the need for further study on older populations of chronic cigarette and marijuana users.
在四组年轻成年蓝领工人中测定了对分级运动的几种生理反应，这四组工人分别被确定为：（1）大麻使用者；（2）香烟使用者；（3）大麻和香烟都使用者；（4）两种物质都不使用者。使用协方差分析来控制种族、年龄、身高和体重，各组在估计的体脂百分比、瘦体重、血细胞比容水平或血红蛋白值方面没有差异。在所有运动水平下，心率和耗氧量反应也相似。发现吸烟者的平均分钟通气量和主观用力程度高于不吸烟者，但有氧能力和体力工作能力没有差异。观察到的肺功能差异表明需要对慢性香烟和大麻使用者的老年人群进行进一步研究。
