嘈杂电化学前庭刺激对社区居住老年人的影响：一项随机对照试验。
Effect of noisy galvanic vestibular stimulation in community-dwelling elderly people: a randomised controlled trial.
机构信息
Department of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata City, Niigata, Japan.
Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata City, Niigata, Japan.
出版信息
J Neuroeng Rehabil. 2018 Jul 3;15(1):63. doi: 10.1186/s12984-018-0407-6.
BACKGROUND
Balance disorders are a risk factor for falls in the elderly. Although noisy galvanic vestibular stimulation (nGVS) has been reported to improve balance in young people, randomised control trials targeting community-dwelling elderly people have not been conducted to date. We aimed to assess the influence of nGVS on COP sway in the open-eye standing posture among community-dwelling elderly people in a randomised controlled trial.
METHODS
A randomised controlled trial of 32 community-dwelling elderly people randomly assigned to control (sham stimulation) and an nGVS groups. All participants underwent centre of pressure (COP) sway measurements while standing with open eyes at baseline and during stimulation. The control group underwent sham stimulation and the nGVS group underwent noise stimulation (0.4 mA; 0.1-640 Hz).
RESULTS
In the nGVS group, sway path length, mediolateral mean velocity and anteroposterior mean velocity decreased during stimulation compared with baseline (P < 0.01). The effect of nGVS was large in participants with a high COP sway path length at baseline, but there was no significant difference in COP sway in the control group.
CONCLUSIONS
We conclude that nGVS decreases the COP sway path length and mean velocity of community-dwelling elderly people when standing with open eyes. This suggests that nGVS could be effective for treating balance dysfunction in the elderly.
背景
平衡障碍是老年人跌倒的一个危险因素。虽然有报道称噪声电前庭刺激（nGVS）可改善年轻人的平衡，但目前尚未针对社区居住的老年人进行随机对照试验。我们旨在评估 nGVS 对社区居住的老年人睁眼站立姿势下的 COP 摆动的影响，进行了一项随机对照试验。
方法
一项随机对照试验，纳入 32 名社区居住的老年人，随机分为对照组（假刺激）和 nGVS 组。所有参与者在基线和刺激期间睁眼站立时进行中心压力（COP）摆动测量。对照组接受假刺激，nGVS 组接受噪声刺激（0.4 mA；0.1-640 Hz）。
结果
在 nGVS 组中，与基线相比，在刺激期间，摆动路径长度、左右向平均速度和前后向平均速度降低（P<0.01）。在基线 COP 摆动路径长度较高的参与者中，nGVS 的效果较大，但对照组的 COP 摆动无显著差异。
结论
我们得出结论，nGVS 可降低社区居住的老年人睁眼站立时的 COP 摆动路径长度和平均速度。这表明 nGVS 可能对治疗老年人的平衡功能障碍有效。
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