Excessive postural sway while standing can lead to falls and injuries. A designed wearable balance assistance device which consists of scissored-pair control moment gyroscopes and a two-axis inclination sensor is introduced to reduce fall risk from excessive sway among the elderly. The prototype has dimensions of H50cm×W44cm×D30cm and weighs 15.03 kilogram. This study aims to investigate the effects of generated torque of the prototype on human subjects and aims to determine if the two-axis inclination sensor can detect sway amplitude and sway direction during an occurrence of excessive sway. Two healthy male subjects participated in the study. According to the results, the detected body incline angle related to the acquired sway amplitude of COP trajectories with correlation factors of 0.92 and 0.88 for the two subjects. The detected sway angle related to the acquired sway direction of COP trajectories with the correlation factors of 0.99 and 0.98 for the two subjects. The maximum-allowable generated torque of the prototype with an assigned actuating angle varying within ±15.6° from the acquired sway direction of COP trajectories was able to drive the COP of 60-kilogram-weighted healthy subject maintaining balance at posterolateral limits of stability with an average body incline angle of 5.74° to pass his standing secure zone. The results indicate that the prototype has the potential of being a wearable balance assistance device which can reduce fall risk from excessive sway among the elderly; however, some improvements are still required in regards to shape, size, mass, generated torque, and strength.

站立时过度摆姿势会导致跌倒和受伤。引入了一种设计的可穿戴式平衡辅助装置，该装置由剪刀对控制力矩陀螺仪和两轴倾斜传感器组成，以减少老年人过度晃动时摔倒的危险。原型的尺寸为H50cm×W44cm×D30cm，重15.03千克。这项研究旨在调查原型产生的扭矩对人体的影响，并确定在发生过度晃动时，两轴倾角传感器是否可以检测晃动幅度和晃动方向。两名健康男性受试者参加了这项研究。根据结果​​，两个受试者的检测到的身体倾斜角度与所获得的COP轨迹的摇摆幅度有关，相关因子分别为0.92和0.88。所检测到的摇摆角与所获取的COP轨迹的摇摆方向有关，两个对象的相关因子分别为0.99和0.98。原型的最大允许产生扭矩与分配的致动角相距所获取的COP轨迹的摆动方向在±15.6°范围内变化，从而能够驱动60公斤重的健康受试者的COP在后外侧稳定度上保持平衡，同时保持平均身体倾斜角度为5.74°，可以越过他的站立安全区域。结果表明，该样机有可能成为可穿戴的平衡辅助装置，从而减少老年人过度晃动引起的跌倒风险；然而，在形状，尺寸，质量，产生的扭矩和强度方面仍需要一些改进。