Department of Health and Human Development, Western Washington University, Bellingham, WA 98225, United States.
Gait Posture. 2020 Jul;80:137-142. doi: 10.1016/j.gaitpost.2020.05.039. Epub 2020 May 27.
Hallux valgus (HV) contributes to deficits in static balance and increased fall risk in older adults. Very limited research has examined dynamic balance deficits in walking in this population. These individuals generally walk slowly, as balance challenge is lesser at slow speeds.
How does the dynamic balance of older adults with HV differ from healthy controls at controlled slow and fast walking speeds?
Nineteen older adults with HV and 13 healthy controls completed 5 continuous walking trials at 1.0 and 1.3 m·s as whole body marker position and ground reaction force data were captured. Dynamic balance was evaluated using whole body center of mass (COM) and center of pressure (COP) inclination angles (IA) and duration of double support.
There were no differences in measures of dynamic balance between older adults with and without HV at slow and fast speeds. At the faster speed, the peak sagittal plane COM-COP IA increased and the double support duration decreased, while the peak frontal plane COM-COP IA were not affected.
Older adults with HV do not exhibit deficits in dynamic balance during continuous walking at comfortable speeds when compared to healthy older adults.
拇外翻(HV)会导致老年人静态平衡能力下降和跌倒风险增加。很少有研究关注该人群行走时的动态平衡能力缺陷。这些人通常走得很慢,因为在较慢的速度下,平衡挑战较小。
在控制的慢走和快走速度下,患有 HV 的老年人的动态平衡能力与健康对照组有何不同?
19 名患有 HV 的老年人和 13 名健康对照组在 1.0 和 1.3m·s 时完成了 5 次连续行走试验,同时记录了全身标记位置和地面反作用力数据。使用全身质心(COM)和压力中心(COP)倾斜角度(IA)和双支撑持续时间来评估动态平衡。
在慢走和快走速度下,患有和不患有 HV 的老年人的动态平衡指标没有差异。在较快的速度下,矢状面 COM-COP IA 的峰值增加,双支撑持续时间减少,而额状面 COM-COP IA 的峰值没有受到影响。
与健康老年人相比,患有 HV 的老年人在舒适速度下连续行走时,其动态平衡能力没有缺陷。