Healthy young subjects were instructed to modify their weight-bearing asymmetry when standing on a double-seesaw device. The results indicated decreased and unchanged amplitudes in the center-of-pressure movements under the unloaded and loaded legs, respectively. In addition, a concomitant increased contribution of the more loaded leg and a decreased contribution of the pressure distribution mechanism along the mediolateral axis were observed in the production of the resultant center of pressure, its amplitude remaining constant. Thus, contrary to what was previously reported for stance control on solid ground, one of the main characteristics of a double-seesaw device, by preventing increased amplitudes on the loaded side during weight-bearing asymmetry, would be to facilitate a greater independency of the feet in the stance control process.

指导健康的年轻受试者站立在双跷跷板上时改变其负重不对称性。结果表明，在未加载和加载的支腿下，压力中心运动的幅度分别减小和未改变。此外，在产生的最终压力中心中，观察到了腿部承受更大负荷的同时增加的贡献，而沿着中外侧轴的压力分布机制的贡献减少了，其振幅保持恒定。因此，与先前报道的在坚实地面上进行姿态控制的报道相反，双跷跷板装置的主要特征之一是，通过防止在负重不对称过程中负载侧的振幅增加，将有助于更大的独立性。脚在姿势控制过程中。