男性の大学スポーツ選手における筋肉力の生産に対する炭水化物のプラセボ効果:誤った情報とフィードバック強化の役割

Man Ying Lee¹, Victor Selvarajah Selvanayagam¹, Teng Keen Khong¹

¹Faculty of Sports and Exercise Science, University of Malaya, Kuala Lumpur, Malaysia.

Physiology & behavior

|September 6, 2025

まとめ

炭水化物プラセボ (CHO-PLA) は,強さの性能を高めました. CHO-PLAに関する誤った情報と視覚的なフィードバックを提供することで参加者の信念と身体的成果が著しく向上しました

科学分野:

スポーツ科学
運動生理学
スポーツの心理学

背景:

炭水化物プラセボ (CHO-PLA) は非代謝性物質で甘さのような心理的なシグナルによってパフォーマンスを高めることができます
CHO-PLAの有効性に対する誤った情報と追加の感覚信号の影響は,まだ十分に調査されていない.

研究の目的:

誤った情報と強化されたフィードバックが炭水化物のプラセボを用いて力の性能に及ぼす影響を調査する.
プラセボによる強さの増強に対する甘さ,口頭情報,視覚的フィードバックの影響を決定する.

主な方法:

45人の男性を誤った情報 (MIS) と誤った情報と強化フィードバック (MIS+R) のグループに分け,対照群に分けました.
CHO- PLAの摂取前と後のイソキネティックな膝の伸縮と屈折の強さを測定した.
疲労を伴うタスクは,1週間後に力の減少率と全部の作業を評価した.

主要な成果:

MISとMIS+Rの両グループは,膝の伸縮力の増加を示した (それぞれ5. 7%と6. 9%).
MIS+Rグループだけが膝の屈折強度 (4. 9%) を改善しました.
MIS+Rグループは,疲労運動中に力の減少率が低く,総労働量が高かった.

結論:

誤った情報とフィードバックの強化は炭水化物のプラセボで力のパフォーマンスを高めます
プラセボ効果は,複数のシグナル (甘さ,口頭情報,視覚的フィードバック) が存在すると最大化されます.
治療の有効性に対する信念を強化した誤った情報によって行動が改善されます

キーワード:

エルゴジェニック・アイド大きな力膝の延長膝の屈折弱い力

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