其他摘要：This study was intended to measure the maximum oxygen intake of Japanese swimmers from 12 to 26 years of age. The subjects were 26 male and 20 female excellent swimmers including Mexico Olympic representatives and 34 male and 32 female good swimmers belonging to junior and senior high school swimming clubs in Nagoya city. The subjects performed all-out run on the treadmill at 8.6% grades, speed of which was kept at 180 m/min for male and 140 m/min for female during the first 2minutes, and after 2 minutes, increased by 10 m/min every one minute until the subject became exhausted. The experimental results can be summarized as follows; Mean maximum oxygen intake of male excellent swimmers was 4.41l/min(max.4.91 and min. 3.68) and that of female swimmers was 2.84l/min(max. 3.45 and min. 2.32). The maximum oxygen intake of male increased linearly with ages from 12 to 18 years, while that of female was constant over a wide range of age, from 12 to 18 years. The maximum oxygen intake of the swimmers was 30-40% more than the non-athletes. In order to succeed in the field of competitive swimming, male swimmer must have a better ability to take oxygen in than the ordinary persons even in younger ages and continue swimming practice and training until 19-20 years of age when the ability of oxygen intake is elevated to the maximum level. On the other hand, though female swimmer must have a better ability to take oxygen in, she can establish her best record at 15 to 17 years of age because her ability of oxygen intake does not increase remarkably after 13 years of age.
