著者
須田 力 穆 子彦 室木 洋一
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.36, no.4, pp.359-370, 1992

The purpose of this study was to investigate physical activity levels of Chinese students in comparison with Japanese students. First, a questionnaire on exercise habits was distributed among the students of 4 universities in China and 6 national unversities in Japan. Answers were obtained from 1,262 Chinese students (771 males and 491 females) and 1,409 Japanese students (1,282 males and 127 females). Second, eighteen healthy male students (9 Chinese and 9 Japanese) who did not participate in athletic clubs were selected as subjects for the measurement of daily activity levels. The heart rate of the subjects were recorded daily during the daytime by using Heart Rate Memory (TKK Instrument Co.). Measurements were taken both in China and Japan to determine the heart rate levels of each subjects and these were compared to the %V^^.O_2 max of different workload levels determined by a Monark ergometer. The results are summarized as follows: 1. The Chinese students tended to engage in exercise more than Japanese students in that (1) fewer complained about lack of exercise, and (2) a higher percentage of the population exercised habitually. Nevertheless, they did not have sufficient oppotunities for sports activity judging from the facts that (1) they had shorter exercise period (2) a lower rate of the population participated in athletic clubs and (3) fewer had experiented sufficient amount of exercise. 2. Although, in general; the Chinese subjects revealed higher rates of activity level exceeding 7O %V^^.O_2 max than the Japanese subjects, the durations of their exercise periods did not allow them to attain an essential time to improve aerobic power, except for one subject; while none of the Japnnese subjects fulfilled these conditions.
著者
須田 力 室木 洋一 中川 功哉 安藤 義宣 西薗 秀嗣 吉田 敏雄
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.32, no.4, pp.255-265, 1988

The purpose of this study was to evaluate the maintenance of fitness with aging. The subjects were 59 men of 49-55 years of age, who entered to Hokkaido University and once had been examined for their fitness between the years of 1950-1952. They were reexamined to determine the maintenance of fitness with age in 1983. After 31-33 years, declination of the mean values in fitness shows from 50.9 to 42.1cm in vertical jump, from 154 to 143kg in back strength, from 4.35 to 3.73L in vital capacity and from 8.4 to 3.2 times in pull-ups. Grip strength was increased from 44.0 to 47.1kg. The correlation coefficients of the values between the time they were freshmen and the present time, were relatively higher in vertical jump (r=0.61, p<0.01), moderatory higher in back strength (r=0.50, p<0.01), grip strength (r=0.48, p<0.05) and vital capacity (r=0.46, p<0.05), but lower in pull-ups (r = 0.17, not significant). Back strenght and grip strength were maintained better in a group who had been engaged in daily physical activity than those who had been inactive. But the differences in the rate of decline were not significant in vertical jump; pull-ups and vital capacity. It was noticed that 14 (23.7%) of the 59 subjects indicated that walking was felt to be the most effective factor to maintain fitness.