A STUDY ON SO-CALLED BODY FLEXIBILITY / 体力科学

7 swimmers and 20 students majoring in physical education (call students for short) aged from 18 to 21 years were participated in this test.<BR>Their height, weight and skinfold were measured, and their performance concerning with fingers-behind-back-touch (call f.b.b.t, for short) right and left flexibility, backward flexibility and forward flexibility were tested too.<BR>Correlation of these data were investigated. The results were as follows;<BR>1) The correlation between f.b.b.t. left and right, backward flexibility, and upper arm and back skinfold thickness were shown in swimmers and students.<BR>2) The correlation between backward and forward flexibility, and Rohler's Index and upper arme, back skinfold thickness were shown in swimmers only.<BR>3) In students, flexibility in these test items tended to be increased. In swimmers, those were a little or did not change.<BR>4) In students, f.b.b.t. right, f.b.b.t. left and forward flexibility tended to be increased after exercise. In swimmers, those tended to be reduced after exercise. In all of the subject, backward flexibility tended to be reduced after exercise.<BR>5) In swimmers, thickness of upper arm and back skinfold were thicker than those of students. In Rohler's Index, as same tendency was shown too.<BR>6) In difference between f.b.b.t. right and left flexibility, swimmers' difference was smaller than that of students. And in total of right and left flexibility, swimmers' total was largely compared with that of sudents.

VARIATION OF THE VENOUS CONCENTRATION OF THE FATTY ACID BY THE PHYSICAL FITNESS TEST OBSERVED ON AGED MALE AND FEMALE / 体力科学

Before and after the physical fitness tests included 1000 meter endurable walking, aged males and females more than 61 to 80 years old were tested on the blood pressure, heart rate and blood components. The results were as follows.<BR>1) The systolic and diastolic blood pressure were not varied so distinctly.<BR>2) Heart rates were increased in all groups.<BR>3) Serum cholesterol, GOT and GPT were not influenced.<BR>4) Fatty acid, especially unsaturated one, was increased remarkably.<BR>5) Fatty acid increasing observed on excellent performer of the endurable walking was higher than that of poor performer.<BR>6) Increasing ratio of the fatty acid which was found on the subjects with abnormal ECG was higher than that of the subjects with normal ECG.<BR>As above mentioned facts, the test of serum fatty acid seemed very important item to the aged people from the view point of security of the exercise.