<研究論文>大学女子バレーボール選手におけるウエイトトレーニングの長期的実施に伴う形態及び体力の変化

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The purpose of this study was to formulate guidelines for an appropriate wreight training program for collegiate volleyball players in Japan. The participants were eleven collegiate woman volleyball players who had no experience in weight training. The program was conducted for 25 months. The changes in body composition and physical strength during the term of 25 months were examined. The main results were as follows : 1) In the body composition, and effective gain of lean body mass during the term was not observed, but a significant decrease of percent fat was seen. 2) In the case of 1RM/body weight, bench press, squat, and power clean, which are the guidelines of muscular strength, were examined, and the results show that all of the above contributed to a tendency of gradually increasing 1RM/body weight during the program. 3) The measurement value of the vertical jump, which is the guideling of jumping ability, showed the greatest increase during the term of the competition. It reached the maximum value after a decrease in the value during the off-season. On the other hand, in the study of the running vertical jump, there was no successful change in the measurement value from the first to the fourth. However, an increase was found in the fifth. 4) The measurement value of side step, which is the guideline of agility, showed a change similar to the vaslue of the vertical jump. The results show that after a significant increase was found in the third, a tendency to decrease was once recorded in the fourth, and the value reached its maximum in the fifth. This examination suggests that a long-term planned weight training program is effective for improving the body composition of collegiate volleyball players and their general physical strength. In addition, the vmeasurement value of the vertical jump and side step, which can be comsidered as highly specific athletic abilities for volleyball, decreased during the off-season, and tended to increase during the serm of a tournament. Therefore, the results suggest that a program that changes the load and frequency of weight training at every fixed term is effective. Meanwhile, the results also showed that the increase of the measurement value of the running vertical jump took more time than the one of the vertical jump. This finding implied that a higher skill level and superior effective neuromuscular function are demanded.

<研究論文>大学女子バレーボール選手におけるウエイトトレーニングの長期的実施に伴う形態及び体力の変化

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