脳卒中後の片麻痺患者における足底屈筋の構造と機能に対する2ヶ月間の偏心性トレーニングプログラムの影響
Maud Pradines1,2, François Jabouille1, Marjolaine Baude1,2
1UR 7377 BIOTN, Faculté de santé, Université Paris-Est Créteil (UPEC).
Archives of rehabilitation research and clinical translation
|January 1, 2026
まとめ
等速性偏心性トレーニング(ECC)は、片麻痺患者の足底屈筋の構造を改善した。この実行可能な介入により、ヒラメ筋と内側腓腹筋の筋厚とアゴニスト活性化が向上した。
科学分野:
- 神経科学
- リハビリテーション医学
- 筋生理学
背景:
- 脳卒中によって誘発される片麻痺は、しばしば足底屈筋の機能障害につながります。
- 筋線維束長の短縮などの筋構造異常は、機能障害の一因となります。
研究 の 目的:
- 片麻痺患者の足底屈筋の構造と機能に対する等速性偏心性トレーニング(ECC)の効果を評価すること。
- ECC介入後の筋線維束長、筋厚、および筋電図活動の変化を評価すること。
主な方法:
- 慢性片麻痺を有する外来患者20名を対象としたランダム化比較試験を実施した。
- 参加者は、8週間のECCプログラムまたは従来の理学療法グループに割り付けられた。
- 内側腓腹筋とヒラメ筋の筋構造(筋線維束長/筋厚)および筋電図を測定した。
主要な成果:
- ECC群では、ヒラメ筋の筋線維束長(+11.1 mm)と筋厚(+1.9 mm)が有意に増加した。
- ECC群では内側腓腹筋の筋厚も増加した(+1.0 mm)。
- ECC群では内側腓腹筋のアゴニスト募集の増加と共同収縮の減少が観察された。
結論:
- 足底屈筋の等速性偏心性トレーニングは、慢性片麻痺を有する患者にとって実行可能な介入である。
- ECCトレーニングは、痙縮足底屈筋の筋構造と神経活動パターンを改善する可能性がある。
- 今後、片麻痺におけるECCトレーニングの長期的な効果とより広範な機能的影響を調査する研究が期待される。
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