Ichihara Y, Hattori R, Anno T, Okuma K, Yokoi M, Mizuno Y, Iwatsuka T, Ohta T, Kawamura T
Aichi Prefectural Center for Health Care and Research, Nagoya, Japan.
J Cardiopulm Rehabil. 1996 Nov-Dec;16(6):378-85. doi: 10.1097/00008483-199611000-00007.
Low physical activity is considered to be an important risk factor for atherosclerotic coronary artery disease. However, few data are reported on the Japanese general population. The authors have studied whether oxygen uptake in physical fitness evaluation is a quantitative index for physical activity and whether or not it has a relation to coronary risk factors.
Five hundred thirteen asymptomatic Japanese (40-64 years of age, 282 males and 231 females) were tested on a cycle ergometer for measurement of peak oxygen uptake (peak VO2) and oxygen uptake at anaerobic threshold (VO2AT). Physical activity was estimated by pedometer score. Data for oxygen uptake were adjusted by age or by age and body mass index (BMI), then its relationship to the following risk factors was investigated: physical activity, BMI, blood pressure, total cholesterol, HDL and LDL cholesterol, fasting blood glucose, and triglycerides.
Subjects in the highest peak VO2 quartile walked significantly more than those in the lowest quartile in both males and females. Those in the highest quartile showed lower BMI, lower blood pressure, lower triglyceride, and higher HDL cholesterol. The same relationship was observed for VO2AT.
Higher fitness level determined by peak VO2 or VO2AT is related to higher physical activity and lower coronary risk factors in the asymptomatic middle-aged Japanese. These data provide support for exercise prescription in the primary prevention of coronary heart disease in Japan.
低体力活动被认为是动脉粥样硬化性冠状动脉疾病的一个重要危险因素。然而，关于日本普通人群的相关数据报道较少。作者研究了体能评估中的摄氧量是否是体力活动的定量指标，以及它是否与冠状动脉危险因素有关。
对513名无症状的日本人（年龄40 - 64岁，男性282名，女性231名）进行了自行车测力计测试，以测量峰值摄氧量（峰值VO2）和无氧阈值时的摄氧量（VO2AT）。通过计步器得分估算体力活动。摄氧量数据按年龄或年龄和体重指数（BMI）进行调整，然后研究其与以下危险因素的关系：体力活动、BMI、血压、总胆固醇、高密度脂蛋白和低密度脂蛋白胆固醇、空腹血糖和甘油三酯。
在男性和女性中，峰值VO2最高四分位数组的受试者行走步数均显著多于最低四分位数组。最高四分位数组的受试者BMI较低、血压较低、甘油三酯较低且高密度脂蛋白胆固醇较高。VO2AT也呈现相同的关系。
由峰值VO2或VO2AT确定的较高体能水平与无症状中年日本人较高的体力活动和较低的冠状动脉危险因素相关。这些数据为日本冠心病一级预防中的运动处方提供了支持。
