Steadward R D, Singh M
Med Sci Sports. 1975 Winter;7(4):309-11.
The purpose of the present investigation was to determine the effects of marihuana on physical performance as determined by six variables: heart rate, blood pressure, muscular strength, physical work capacity, forced vital capacity, flow rate of expiration. Twenty volunteer human marihuana smokers took part in three experimental testing sessions. Each subject reported to a laboratory on three different days. Day one was used as their control testing sessions. Day two and three were the placebo and marihuana sessions. On day three the subject smoked marihuana if he had placebo on day two, and vice versa. The test batter measures consisted of resting heart rate, resting systolic and diastolic blood pressure, grip strength, forced vital capacity and flow rate and a submaximal bicycle ergometer test. There were significant differences between the marihuana treatment group and the other treatment groups in heart rate, systolic and diastolic blood pressure and physical work capacity.
本研究的目的是确定大麻对身体机能的影响，身体机能由六个变量来衡量：心率、血压、肌肉力量、身体工作能力、用力肺活量、呼气流量。20名吸食大麻的志愿者参加了三次实验测试。每个受试者在三个不同的日子到实验室报到。第一天用作对照测试。第二天和第三天分别是服用安慰剂和吸食大麻的测试日。第三天，如果受试者第二天服用了安慰剂，那么他就吸食大麻，反之亦然。测试项目包括静息心率、静息收缩压和舒张压、握力、用力肺活量和呼气流量以及次极量自行车测力计测试。大麻治疗组与其他治疗组在心率、收缩压和舒张压以及身体工作能力方面存在显著差异。
