中学校女子バレーボール部の部活動における運動量が
体力に与える影響
吉田 博幸 加賀谷 ?彦*
Energy expenditure during volleyball practice in female
junior high school students and its effect on physical fitness
Hiroyuki YOSHIDA and Hirohiko KAGAYA*
The purpose of this study was to investigate the relationship between energy expenditure and
physical fitness in junior high school volleyball players. The subjects were 16 junior high school
students. The duration of practice ranged from one to three hours a day, 4 days a week. Stature,
weight, skinfold thickness (triceps and subscapular), grip strength, back strength, Ieg extension,
vertical jump, whole body reaction time, anaerobic power, and aerobic power were measured. Heart
rate was monitored during practice, and energy expenditure was calculated. When the physique
between the 1st+2nd grade group and the 3rd grade group was compared the 3rd grade group was
found to be significantly taller. No significant difference was found in weight. Skinfold thickness of
the 3rd grade group (37.4±5.7 mm) was significantly larger than that of the I st+2 nd grade
group(27.0±7.5mm) . Leg extension of the 3 rd grade group (37.5±3.4 kg) was significantly
greater than that of the I st+2 nd group (25.7±6.9kg) . Furthermore, the 3rd grade group showed
a slgniflcantly higher PWC170 value (l08±18W vs 73±17W) . No significant difference was found
in grip strength, back strength, vertical jump, whole body reaction time, or anaerobic and aerobic
power. Energy expenditure during practice in the I st+2nd grade group (157.7±58.5kcal/h) was
significantly lower than that in the 3rd grade group (233.5±11.1kcal/h). Correlation coefficients
between energy expenditure and skinfold thickness, grip strength, back strength, Ieg extension, and
PWC170 were significant.However, partial correlation eliminating weight factor was not signifi
cantly. The results suggested that volleyball practice (1-3hours/day, 4days/week) of these Subjects
did not significantly affect the physical fitness of these subjects. We concluded that physical fitness
in junior high school female students depends on the degree of individual growth rather than
training stimulation.
(Rep. Res. Cent. Phys. Ed. 28 : 51-58, 1999)
東京家政学院短期大学 Tokyo Kasei Gakuin Junior College
*埼玉大学教育学部 Faculty of Education, Saitama University
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