Pellett T L, Henschel-Pellett H A, Harrison J M
Department of Physical Education, Northern Illinois University, DeKalb 60115-2854.
Percept Mot Skills. 1994 Jun;78(3 Pt 2):1379-84. doi: 10.2466/pms.1994.78.3c.1379.
This study was designed to investigate the influence of a lighter ball (Tachikara Volley Lite) on 72 seventh-grade girls' tournament game play and pretest-to-posttest improvement for a 16-day volleyball practice period. Two intact classes were randomly assigned to groups, one of whom used lighter balls during skills progressions while a second used regulation balls. All students used regulation balls during tournament game play and skills tests. Both groups significantly improved the forearm pass from pretest to posttest. Analysis of covariance indicated no significant differences between groups on posttest means for any skill. A 2 x 6 (treatment x game day) analysis of variance indicated that the group practicing with lighter balls had significantly more correct sets and a higher average daily success rate for the set and underhand serve on game days than the group using a regulation ball.
本研究旨在调查较轻的球（立川轻量排球）对72名七年级女生在为期16天的排球练习期内的比赛表现以及从测试前到测试后的进步情况的影响。两个完整的班级被随机分组，其中一组在技能训练中使用较轻的球，另一组使用标准球。所有学生在比赛和技能测试中都使用标准球。两组学生从测试前到测试后在前臂传球方面都有显著提高。协方差分析表明，在任何技能的测试后均值上，两组之间没有显著差异。一项2×6（处理×比赛日）方差分析表明，与使用标准球的组相比，使用较轻的球进行练习的组在比赛日有更多正确的二传，并且二传和下手发球的平均每日成功率更高。
