視力低下で歩行を開始する際の転倒の恐怖に対する姿勢反応の遅延:仮想現実ベースの恐怖シミュレーションからの洞察
Mansoo Ko1, Praveena K Gupta2, Gregory Brusola1
1Department of Physical Therapy, School of Health Professions, University of Texas Medical Branch at Galveston, Galveston, TX 77555-1144, USA.
Healthcare (Basel, Switzerland)
|February 13, 2026
まとめ
視力低下 (LV) の人は,健康な人よりも落ちる恐れ (FOF) を経験します. この恐怖は,歩行開始時に重要な姿勢の遅延につながり,極端な仮想現実誘発の恐怖に匹敵します.
科学分野:
- バイオメカニクスとモーターコントロール
- 眼科と視覚科学 眼科と視覚科学 眼科と視覚科学
- ゲロントロジーとリハビリテーション
背景:
- 落ちる恐怖 (FOF) は,視力低下 (LV) の個人に重大な懸念です.
- 姿勢の制御が変化し,転倒のリスクが増加することが,LV集団で一般的です.
- 歩行開始 (GI) は,バランスが問題となる重要な段階です.
研究 の 目的:
- 健康な対照群と比較して,LV患者におけるFOFの重症度を定量化する.
- 健康な個人とLVを持つ人の間での歩行開始時のタイムリーイベントを比較する.
- 健康な個体における姿勢調整に対するシミュレートされた恐怖の影響を調査する.
主な方法:
- LVを患った成人14人と,年齢・性別をマッチした健康な成人14人を募集した.
- Falls Efficacy Scale International を使って FOF を評価した.
- 視力シミュレータ (SS) と仮想現実 (VR) の条件を含む,独立したtテストとANOVAを使用して,一時歩行開始イベントを比較しました.
主要な成果:
- LVの個人は,健康な対照群よりも著しく高いFOFを報告しました.
- LVの参加者は,健康な対照群とSS状態と比較して,GI中に長期にわたる予期的な姿勢調整 (APA) 期間を示しました.
- LVにおける姿勢の遅延は,VR環境によって誘発される恐怖に重度が似ている延長された初期予期によって特徴付けられました.
結論:
- 視力低下は,歩行を開始する際に安定性を優先する保守的な運動戦略と関連しています.
- LVで観察された姿勢の躊躇は,重大な恐怖によって引き起こされたものと比較できます.
- 感覚的重量調整とFOFの介入に焦点を当てた多学科リハビリテーションは,LVの姿勢制御を改善し,転倒リスクを減らすために不可欠です.
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