シミュレートされた歩行トレーニングは,片面の骨を固定した肢体のトランスフェモラルユーザーの関節の負荷対称性を改善します
Nicholas W Vandenberg1, Benjamin B Wheatley2, R Dana Carpenter1
1University of Colorado Bone-Anchored Limb Research Group, Aurora, CO, United States; Department of Mechanical Engineering, University of Colorado Denver, Denver CO, United States.
Journal of biomechanics
|February 13, 2026
まとめ
Bone-anchored limbs (BALs) は,従来の義肢の代替案として提供されています. この研究は,トランスフェモラルBAL使用者が,シミュレートされた歩行訓練を通じて対称な歩行と改善された関節負荷対称性を達成できることを示しています.
科学分野:
- バイオメカニクス バイオメカニクス
- リハビリテーションエンジニアリング
- プロテシス プロテシスト プロテシスト
背景:
- トランスフェモラル截肢者において,ソケット関連の病理は一般的です.
- Bone-anchored limbs (BALs) は有望な代替品ですが,歩行と関節の負荷の非対称性は,移植後も持続しています.
- 現在の歩行トレーニングは対称性に焦点を当てていますが,BALユーザーの実現可能性は不明です.
研究 の 目的:
- トランスフェモラルBAL使用者にとって歩行対称性が達成可能かどうかを判断する.
- 最適な制御と筋骨格のモデリングを使用して歩行対称性を強制するバイオメカニカル効果を調査する.
- シミュレートされた歩行訓練後の運動と関節の負荷対称性の変化を評価するために.
主な方法:
- OpenSim Mocoを利用して,筋骨格のモデリングと最適な制御シミュレーションを行いました.
- 11人のトランスフェモラルBAL使用者のためのシミュレートされた歩行訓練介入.
- 対象の歩行パターンを予測し,対象特有のBALモデルを使用して追跡し,対称性メトリックと関節負荷を評価しました.
主要な成果:
- シミュレーションによるトレーニングは,四肢間のより相性的で相関する運動パターンをもたらした.
- 歩行対称性が改善され,臨床目標の実現可能性が実証されました.
- 切断された四肢の股関節の反応力と,関節の負荷インパルスが増大し,関節の負荷対称性を高め,無傷の四肢に悪影響を及ぼさない.
結論:
- 運動対称性は,トランスフェモラルBAL使用者にとって達成可能である.
- シミュレーションされた歩行訓練は,運動と関節の負荷対称性を改善することができます.
- BALの使用者は,有害な関節負荷効果なしに対称な歩行を実現することができます.
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