Linderholm H, Lindgren U
Acta Orthop Scand. 1978 Oct;49(5):469-74. doi: 10.3109/17453677808993264.
The prediction of normal spirometric values requires a measure of the non-deformed body height of scoliotic patients. The arm-span method has been used for estimating the non-deformed body height in spite of the fact that opinions about the normal relationships between body height and arm span differ. In order to minimize the error of estimation of non-deformed body height, the normal relationships between body height and arm span were determined for 91 males and for 118 females of ordinary body stature, varying age (5-78 years), and Swedish origin. The body-height/arm-span relationships were described by linear regression equations taking age into account. The results indicate significant sex and age differences in the arm-span/height ratio. Multiple regression equations including arm span and age as regressors were used to calculate the non-deformed body height in scoliotic patients. The arm-span method was compared with the method using the degree of lateral curvature of the spine for calculation of non-deformed body height of scoliotic subjects. The arm-span method resulted in a correction of body height and predicted spirometric values that agreed closely with those obtained by the method using the degree of curvature of the spine. The two methods may be used alternatively. In accordance with earlier reports, the predicted spirometric values were underestimated when the measured body height was used.
预测正常肺活量测定值需要测量脊柱侧弯患者未变形的身高。尽管关于身高与臂展之间的正常关系存在不同观点，但臂展法已被用于估计未变形的身高。为了尽量减少未变形身高估计的误差，我们确定了91名男性和118名女性（普通体型、年龄各异（5至78岁）且来自瑞典）的身高与臂展之间的正常关系。身高/臂展关系通过考虑年龄的线性回归方程来描述。结果表明臂展/身高比存在显著的性别和年龄差异。使用包括臂展和年龄作为回归变量的多元回归方程来计算脊柱侧弯患者未变形的身高。将臂展法与使用脊柱侧弯程度来计算脊柱侧弯受试者未变形身高的方法进行了比较。臂展法得出的身高校正值和预测的肺活量测定值与使用脊柱侧弯程度的方法所获得的值非常接近。这两种方法可以交替使用。与早期报告一致，当使用测量的身高时，预测的肺活量测定值被低估。
