Exercise ECG test and medical examinations were performed on 164 middle-aged and old subjects. Abnormal exercise ECG findings were observed in 17 subjects. Other examination abnormal and/or the age over 55 years were observed in 20 subjects. Therefore, a total of 37 was selected as the training group, who participated in physical training program consisting of 100 minutes/day, 2 days/week for three months.
　The results obtained were as follows:
　1) After physical training, systolic blood pressure and triglyceride in plasma were significantly decreased. On the other hand, HDL-cholesterol in plasma showed significant increases.
　2) Exercise ECG abnormalities were improved in 82% of the subjects by the physical training program.
　These findings confirmed the importance of exercise ECG test for exercise prescription and of the physical training program as a measure for the removal of risk factors in heart disease.

DESCENTE SPORTS SCIENCE Vol.3/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE