Oppliger R A, Tipton C M
College of Nursing, University of Iowa, Iowa City 52242.
Med Sci Sports Exerc. 1988 Jun;20(3):310-6. doi: 10.1249/00005768-198806000-00016.
Previous research by Tcheng and Tipton developed two prediction equations appropriate for the estimation of minimal weight for high school wrestlers. The purpose of this investigation was to cross-validate these equations using densitometric estimates of minimal weight. Skeletal dimension measurements and hydrostatic weighing were completed on 220 Iowa high school wrestlers at various times in and out of season. High concurrent validity (r = 0.93) and small residual errors (less than 0.33 kg) were observed when compared to densitometric estimates. Regression weights were of similar magnitude to those from the previous study. Two new prediction models were tested. Model II enhanced the multiple R over previous equations to 0.962 and decreased the SEE by 25% (0.55 kg). The equation was: Minimal Weight (lbs) = 0.49 x Current Weight (lbs) + 1.65 x Height (inches) + 1.81 x Chest Diameter (cm) + 6.70 x Right Wrist Diameter (cm) + 1.35 x Chest Depth (cm) - 156.56. It was concluded that the Tcheng-Tipton equations or the new models could be used as valid indicators of a minimal weight for scholastic wrestlers.
程和蒂普顿之前的研究开发了两个适用于估算高中摔跤运动员最低体重的预测方程。本调查的目的是使用最低体重的密度测定估计值对这些方程进行交叉验证。在赛季中和赛季外的不同时间，对220名爱荷华州高中摔跤运动员进行了骨骼尺寸测量和静水称重。与密度测定估计值相比，观察到了较高的同时效度（r = 0.93）和较小的残差误差（小于0.33千克）。回归权重与先前研究中的权重大小相似。测试了两个新的预测模型。模型II将先前方程的复相关系数提高到了0.962，并将标准误降低了25%（0.55千克）。该方程为：最低体重（磅）= 0.49×当前体重（磅）+ 1.65×身高（英寸）+ 1.81×胸围（厘米）+ 6.70×右手腕直径（厘米）+ 1.35×胸深（厘米）- 156.56。得出的结论是，程-蒂普顿方程或新模型可作为学术摔跤运动员最低体重的有效指标。
