Duncan Michael J, Al-Nakeeb Yahya, Nevill Alan M
Department of Physical Education and Sports Studies, Newman College of Higher Education, Birmingham, England.
Res Sports Med. 2005 Oct-Dec;13(4):345-52. doi: 10.1080/15438620500359950.
This study examined the influence of familiarization with the backward, overhead medicine ball throw test of explosive power. Male rugby players (N = 28) aged 15 to 16 (M +/- SD = 15.1 +/- 0.5) years completed the medicine ball throw six times. Repeated measures ANOVA indicated that the distance thrown differed across trials (F5,135 = 12.83, p < 0.01). Least significant differences post hoc multiple comparisons revealed significant differences between a number of trials; however, no significant difference was evident between the fifth and sixth trials (Mdiff = .005, p > 0.05). Typical error of measurement became less as trials progressed, with the typical error of measurement being 0.10 m between the fifth and sixth trials indicating little within subject variation between medicine ball throws following a familiarization period. The backward, overhead medicine ball throw may be a practical, reliable method to assess total body, explosive power of male teen-aged rugby players; however, completion of at least 5 to 6 practice trials is suggested for participants to obtain a stable score.
本研究考察了熟悉向后过顶药球投掷爆发力测试的影响。15至16岁（M±SD = 15.1±0.5）的男性橄榄球运动员（N = 28）完成了6次药球投掷。重复测量方差分析表明，各试验的投掷距离存在差异（F5,135 = 12.83，p < 0.01）。最小显著差事后多重比较显示，多个试验之间存在显著差异；然而，第五次和第六次试验之间没有明显差异（Mdiff = 0.005，p > 0.05）。随着试验的进行，测量的典型误差减小，第五次和第六次试验之间的测量典型误差为0.10米，表明在熟悉期后药球投掷的受试者内部差异很小。向后过顶药球投掷可能是评估男性青少年橄榄球运动员全身爆发力的一种实用、可靠的方法；然而，建议参与者至少完成5至6次练习试验以获得稳定的分数。
