Kadaba M P, Ferguson-Pell M W, Palmieri V R, Cochran G V
Arch Phys Med Rehabil. 1984 Aug;65(8):467-9.
For patients susceptible to decubitus ulcers, wheelchair cushions and other body support surfaces must be prescribed with a view to providing a uniform distribution of buttock-cushion interface pressures. The capacity to distribute pressure uniformly at the support interface depends on the shape of the bony prominences, and the amount and mechanical compliance of the overlying soft tissue: an indication of this capability may be given by the indentation contour of the buttock-cushion interface. Using normal subjects, we devised a method for measuring this contour using ultrasonic dimension gauging techniques. Because the technique can describe the geometry of soft tissues deformed under load, it could make an important contribution to successful employment of analytical modeling to predict internal tissue stresses during sitting.
对于易患褥疮的患者，必须开具轮椅坐垫和其他身体支撑表面的处方，以实现臀部与坐垫界面压力的均匀分布。在支撑界面均匀分布压力的能力取决于骨突的形状、覆盖软组织的数量和机械顺应性：臀部与坐垫界面的压痕轮廓可以表明这种能力。我们使用正常受试者，设计了一种利用超声尺寸测量技术测量该轮廓的方法。由于该技术可以描述负载下变形软组织的几何形状，因此它可以为成功应用分析模型预测坐姿时的内部组织应力做出重要贡献。
