若い男性における大動脈と腕の血圧の格差に対する非常に低強度の抵抗運動の効果
Kaname Tagawa1,2, Junichiro Hashimoto1,3
1Miyagi University of Education Medical Center, Sendai, Japan.
American journal of hypertension
|August 30, 2025
まとめ
低強度レジスタンス運動 (最大10%) は,高強度 (最大40%) と比較して,小動脈の圧力の上昇を伴う. これは,最大10%の繰り返しで,運動中のパルサチル・プレッシャー・ストレスを減少させることを示唆しています.
科学分野:
- 心血管の生理学
- 運動科学
- 生物医学工学
背景:
- 抵抗運動は,運動中に,そして運動後,脈圧を著しく上昇させます.
- 抵抗トレーニング中の大動脈脈圧に対する運動の強度の影響は十分に理解されていません.
研究 の 目的:
- 異なる抵抗運動の強度 (10%と40%の最大) が大動脈の圧力に及ぼす影響を調査する.
主な方法:
- 16人の参加者は,ランダム化されたクロスオーバーデザインで最大10%と40%のレジスタンス運動 (1RM) を受けました.
- 大動脈の圧力は,運動前と運動後のSphygmoCor XCEL装置を使用して,腕の圧力の波形から推定されました.
主要な成果:
- 40% 1RM (p=0. 02) と比較して10% 1RMでは,大動脈の圧力の上昇が著しく低かった.
- 逆圧幅と増幅指数の増加は10% 1RM (p<0. 05) で減少した.
- 腕脈圧の変化は,運動の強度によって異なります.
結論:
- 大動脈と腕動脈の運動後のパルス圧力の差異は,後方圧力の幅と関連しています.
- 10% 1RM 抵抗運動は,大動脈の圧力波形に有益な効果を示しています.
- 低強度 (10% 1RM) のレジスタンス運動は,過度の大動脈脈圧ストレスを軽減する可能性があります.
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