High-Intensity Interval Exercise in Chronic Heart Failure: Protocol Optimization

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• 作者：Philippe Meyer ; MD¹ ; ² ; Eve Normandin ; BSc² ; Mathieu Gayda ; PhD² ; ³ ; Guillaume Billon ; MSc² ; Thibaut Guiraud ; PhD² ; ⁴ ; Laurent Bosquet ; PhD⁴ ; ⁶ ; Annick Fortier ; MSc⁵ ; Martin Juneau ; MD² ; ³ ; Michel White ; MD³ ; Anil Nigam ; MD² ; ³ ; ^{anil.nigam@icm-mhi.org}
• 关键词：Intermittent exercise ; prescription ; cardiac rehabilitation ; heart failure
• 刊名：Journal of Cardiac Failure
• 出版年：2012
• 出版时间：February 2012
• 年：2012
• 卷：18
• 期：2
• 页码：126-133
• 全文大小：334 K

文摘

Background

There are little data on the optimization of high-intensity aerobic interval exercise (HIIE) protocols in patients with chronic heart failure (CHF). Therefore, we compared acute cardiopulmonary responses to 4 different HIIE protocols to identify the optimal one.

Methods and Results

Twenty men with stable systolic CHF performed 4 different randomly ordered single HIIE sessions with measurement of gas exchange. For all protocols (A, B, C, and D) exercise intensity was set at 100 % of peak power output (PPO). Interval duration was 30 seconds (A and B) or 90 seconds (C?and D), and recovery was passive (A and C) or active (50 % of PPO in B and D). Time spent above 85 % of VO_2peak and time above the ventilatory threshold were similar across all 4 HIIE protocols. Total exercise time was significantly longer in protocols with passive recovery intervals (A:?1,651 ¡À 347 s; C:?1,574?¡À 382 s) compared with protocols with active recovery intervals (B:?986?¡À 542 s; D: 961 ¡À 556 s). All protocols appeared to be safe, with exercise tolerance being superior during protocol A.

Conclusion

Among the 4 HIIE protocols tested, protocol A with short intervals and passive recovery appeared to be superior.