Robotically Controlled Head Oscillations During Overground Walking: A Comparison of Elderly and Young Adults

被引:1
作者
Petros, Fitsum E. [1 ]
Hu, Diane [2 ]
Kulkarni, Priya [1 ]
Agrawal, Sunil K. [1 ,3 ]
机构
[1] Columbia Univ, Dept Mech Engn, New York, NY 10027 USA
[2] Columbia Univ, Vagelos Coll Phys & Surg, New York, NY 10027 USA
[3] Columbia Univ, Dept Rehabil & Regenerat Med, New York, NY 10027 USA
关键词
Gait and balance; head oscillation; overground walking; visual feedback; virtual reality; AGE-RELATED DIFFERENCES; GAIT; BALANCE; STABILITY; COORDINATION; PREDICTOR; MOVEMENTS; TRUNK; FALLS; SPEED;
D O I
10.1109/LRA.2023.3340015
中图分类号
TP24 [机器人技术];
学科分类号
080202 ; 1405 ;
摘要
Head turns during walking have been used to assess balance, mobility, and vestibular function in both experimental and clinical applications. However, head turns in walking experiments have been limited to self-initiated head motions as opposed to controlled motions. The aim of this study is to evaluate the effects of controlled head turns enabled by a robotic neck brace in elderly and young adults during overground walking under normal (HO) and altered vision (HVO). The robotic neck brace applied controlled sinusoidal head turns around the vertical axis at +/- 30(degrees), 0.4 Hz. The vision was altered using a virtual reality headset, where the visual field was aligned along the direction of the head oscillation. Ten elderly (EA, 65-85 yrs) and ten younger (YA, 22-32 yrs) adults were recruited. Spatiotemporal gait parameters, such as stride length (SL), stride width (SW), stride velocity (SV), stride time (ST), stance time percentage (STP), and direction of progression (DoP), as well as mediolateral and anterior-posterior margins of stability (MLMoS and AP(MoS)) were analyzed. Elderly participants showed greater gait changes than younger individuals, particularly during HVO, leading to the highest DoP deviations. Our results indicate that the elderly had difficulty relying on non visual cues to compensate for the altered vision. However, they had comparable MLMoS and more stable AP(MoS). Overall, older adults prioritized balance and stability, while young adults focused on preserving walking direction. Our results indicated that age significantly impacts gait during head oscillations, especially when visual information is altered.
引用
收藏
页码:1074 / 1081
页数:8
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