@article{oai:niigata-u.repo.nii.ac.jp:00018117,
 author = {相崎, 俊哉},
 issue = {5},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {May},
 note = {Low physical activity in modern life has been pointed out to cause various diseases such as diabetes and hyperlipidemia. An adequate exercise prescription has been difficult partly because of the lack of a suitable device which monitors physical activity continuously. In the previous paper, we presented a new portable recording device for 24 hours exercise intensity and electrocardiogram as well as an analyzing system. In the present paper, results from performance test for this device as well as results obtained by applying them to different kinds of workers will be presented. When ten adults healthy males walked or ran on a flat slope treadmill at different speeds (2.5～5.8miles/hour) by wearing the device on their waists, the output exercise intensity correlated well (r=0.96, p<0.01) with the intensity estimated from the formula proposed by the American College of Sports Medicine. Vibration transmitted during boarding on a car did not influence the output count. The output count was approximately one third of the estimated value when the subject walked up stairs three floors and was 1.7 times larger when he walked down. We had to keep such characteristics in mind to interpret results. Difference in physical activity was checked by the device in office workers and canvassers (20 subjects for each group with the mean age of 35 years and mean body weight of 64kg). The mean and standard deviation of total energy consumption, obtained as the sum of exercise intensity (METS) multiplied by body weight (Kg) and by exercise hours, was significantly larger in the canvassers than in the office workers (2309±321 vs 2121±289Kcal/day, p<0.01). Mean exercise intensity obtained for every three hours interval during the time period from 6 to 24 O'clock was also significantly larger in the former. Total time spent for exercise for which the heart rate exceeded 60% of the expected maximum heart rate was also larger in the former (62±41 vs 22±18minutes, p<0.05), though the exercise intensity was not different (2.6±1.1 vs 2.5±0.9METS). These results tells that physical activity is decreased in the office workers and more exercise would be necessary for them to lead to a healthy life.},
 pages = {166--176},
 title = {運動強度および心電図の24時間同時記録システムの有用性と一般勤労者の運動量の測定},
 volume = {110},
 year = {1996}
}