Key result
High-intensity interval training significantly improved peak power output (20.9 vs 8.8 W) and maximum oxygen uptake compared to moderate continuous training over a 3-week rehabilitation program.
Why the study?
The study assessed the benefit of high-intensity interval training for cardiovascular patients undergoing outpatient rehabilitation in a standard three-week program in Germany.
Does high-intensity interval training improve maximal performance parameters compared to moderate continuous training in cardiovascular patients undergoing a three-week outpatient rehabilitation program?
RCT (n=50)
No
Does high-intensity interval training improve maximal performance parameters compared to moderate continuous training in cardiovascular patients undergoing a three-week outpatient rehabilitation program?
Absolute Event Rate: 20.9% vs 8.8%
High-intensity interval training during a three-week cardiac rehabilitation program significantly improves maximal performance parameters compared to standard moderate continuous training.
Supports incorporating HIIT into brief outpatient cardiac rehab; extends longer-trial evidence to standard three-week German programs.
Objective: The aim of this study was to assess the benefit of using high-intensity interval training for cardiovascular patients undergoing outpatient rehabilitation in a standard short-term (three-week) program in Germany. Design: This is a randomized controlled trial (RCT). Setting: This study was conducted at Cardiowell (Wuppertal, Germany), an outpatient rehabilitation center. Intervention: Patients underwent the typical three-week German outpatient rehabilitation program using either moderate continuous training (i.e. the standard training program) or high-intensity interval training. Main measures: A total of 50 patients of an outpatient rehabilitation center were randomized into two groups. The control group underwent the standard rehabilitation protocol that applied moderate continuous training, and the intervention group trained according to a high-intensity interval protocol. Patients trained on a bicycle ergometer. Peak power output, oxygen uptake parameters, heart frequencies, and blood pressure were compared at the beginning and at the end of the rehabilitation program. Results: After three weeks, the intervention group had improved to a significantly greater extent in maximal performance parameters than the control group: the peak power output (20.9 (±14.1) W; control 8.8 (±10.4) W), maximum oxygen uptake (0.33 (±0.33) L/min; control 0.05 (±0.29) L/min)), relative maximum oxygen uptake (3.4 (±4.2) mL/kg/min; control 0.9 (±3.1) mL/kg/min), and O 2 pulse (1.8 (±2.2) mL/heart beat; control 0.35 (±1.7) mL/heart beat). Conclusion: The implementation of high-intensity interval training during a typical three-week German cardiac rehabilitation has the power to increase the outcome for the patients.
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Wehmeier et al. (2020) conducted an RCT in Cardiovascular disease requiring rehabilitation (n=50). High-intensity interval training vs. Moderate continuous training was evaluated on Peak power output. High-intensity interval training significantly improved peak power output (20.9 vs 8.8 W) and maximum oxygen uptake compared to moderate continuous training over a 3-week rehabilitation program.
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