柔らかい装着型背中サポートデバイスが転倒様外乱時の姿勢安定性に与える影響
Impact of a Soft Wearable Back-Support Device on Postural Stability during Trip-Like Perturbations
柔らかい装着型背中サポートデバイスが転倒様の外乱に対する姿勢安定性を向上させるかを、立位と歩行中の実験で検証した。デバイス使用により安定性指標が向上し、特に立位では剛性が高いほど効果が大きかった。
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著者: Yuanhao Chen, Rohan Khatavkar, Soubhagya Nayak, Jiefeng Sun, Hyunglae Lee
分類: cs.RO
原文アブストラクト
The effectiveness of a soft wearable back-support device in enhancing postural stability was investigated under trip-like perturbations using two experimental paradigms: perturbed standing and perturbed walking. Healthy subjects completed trials under three different back-support conditions: no device, device worn with low stiffness, and device activated with high stiffness. Whole-body stability was quantified using the minimum Margin of Stability (MOS) at the point of maximal instability. Results demonstrated increased MOS during device use, indicating enhanced postural stability. In standing, MOS increased significantly with device stiffness, whereas in walking, both device conditions improved MOS relative to no device but did not differ significantly from each other. These findings highlight the potential of soft wearable back-support devices with adjustable stiffness to improve reactive balance control against external perturbations, with important implications for fall prevention. Future research should explore personalized stiffness optimization and evaluate efficacy in populations at elevated risk of falls.
