運動が心拍数回復に与える影響
Michael A Jolly1, Danielle M Brennan, Leslie Cho
1Department of Cardiovascular Medicine, JB-1, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA.
Circulation
|September 28, 2011
まとめ
心臓リハビリテーションによる心拍数回復 (HRR) の改善は,死亡リスクを大幅に減らすことができます. リハビリテーション後に異常なHRRを正常化すると,正常なベースラインHRRの生存率に匹敵する生存率につながります.
科学分野:
- 心臓病学 心臓病学
- 運動生理学 運動生理学
- 予防医学は,予防的な医療です.
背景:
- 異常な心拍数回復 (HRR) は,死亡率の既知の予測因子である.
- 以前の研究では,心臓リハビリテーションでHRRの改善が示唆されていましたが,死亡率への影響は不明でした.
研究 の 目的:
- 心臓リハビリテーションがHRRを改善するかどうかを判断する.
- 改善されたHRRが死亡率を予測するかどうかを評価する.
主な方法:
- 1070人の患者は,第2段階の心臓リハビリテーションの前と後の運動ストレステストを受けた.
- 心拍数回復 (HRR) は,ピーク心拍数から回復から1分後の心拍数を引いた心拍数として測定されました.
- 死亡率は,主要なエンドポイントとして追跡されました.
主要な成果:
- 異常なベースラインHRRを有する患者の41%が,リハビリテーション後にHRRを正常化しました.
- リハビリテーション後のHRRの正常化に失敗すると,より高い死亡率 (P<0.001) が予測されます.
- 出口時の異常なHRRは,独立して死亡を予測した (HR, 2.15).
結論:
- ステージ2の心臓リハビリテーションは,全体的なコホートでHRRを改善しました.
- リハビリテーション終了時の異常なHRRは,あらゆる原因による死亡率を強く予測しました.
- 運動によってHRRを正常化した患者は,正常なベースラインHRRを持つ患者と同様の死亡率を示した.
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