Abstract
Measurements of heart rates during usual activities, maximal aerobic power and skinfold thickness were carried out as a basic research for the comparative study of the optimal load for successful living in modern society or in future ages. 18 urban sedentary male workers who came to work by car and were 19-38 years of age were selected as subjects.
The mean and S.D. of the maximal aerobic power was 35.8±5.2ml/kg/min, and those of 15 subjects (83%) were below 40ml/kg/min. The means of 12-hr heart rates during usual activities ranged within 71.5-95.0 beats/min. The mean and S.D. of the maximal heart rate during usual activities was 113±10 beats/min; 61±4% of their maximal heart rates during exhaustive exercises. Significant correlation was found between the maximal heart rate during usual activities and maximal aerobic power.
