Body Height Change During Upright and Recumbent Posture
Body Height Change During Upright and Recumbent Posture
复制标题
直立和卧姿期间的身高变化
作者：
M. Krag;M. Cohen;L. Haugh;M. Pope
已知响应于沿沿着脊柱作用的负荷的变化而发生身高变化，例如由从横卧姿势到直立姿势的运动所产生的负荷。缺乏以前可用的数据是解决这里的身高测量时间间隔很近的10个正常受试者在8小时直立和4小时横卧，特别注意的初始变化。实验误差被仔细定义和确定。一个开尔文单位模型拟合的平均数据为每个阶段和置信限提供的模型方程参数。快速的高度变化发生：26%的8小时损失发生在第一个小时直立，41%的4小时恢复发生在第一个小时横卧。
Body height changes are known to occur in response to changes in loads acting along the spine, such as those produced by movement from a recumbent to an upright posture. Lack of previously available data is addressed here by body height measurements closely spaced in time of ten normal subjects during 8 hours upright and 4 hours recumbent, with particular attention paid to the initial changes. Experimental errors are carefully defined and determined. A Kelvin-unit model is fitted to the mean data for each phase and confidence limits provided for the model equation parameters. Rapid height changes are shown to occur: 26% of the 8-hour loss occurred in the first hour upright, and 41% of the 4-hour recovery occurred in the first hour recumbent.