August 21, 2017European Journal of Preventive Cardiology
High-intensity interval training versus moderate-intensity continuous training on exercise capacity and quality of life in patients with coronary artery disease: A systematic review and meta-analysis
Why the study?
Does high-intensity interval training improve peak oxygen uptake and quality of life in patients with coronary artery disease compared with moderate-intensity continuous training?
Population
609 patients with coronary artery disease across 12 studies
Comparison
High-intensity interval training vs Moderate-intensity continuous training
Design
Meta-analysis
Authors
Discussion
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Member takes
Implication
HIIT offers no VO2 advantage over MICT when isocaloric; extends evidence that apparent intensity benefits reflect greater energy expenditure.
Key Points
- To compare the effects of high-intensity interval training versus moderate-intensity continuous training on exercise capacity and quality of life in coronary artery disease patients.
- Included twelve studies with a total of 609 participants.
- Evaluated peak oxygen uptake as a measure of exercise capacity.
- Quality of life was assessed across physical, emotional, and social domains.
- High-intensity interval training improved peak oxygen uptake (weighted mean difference 1.3 ml/kg/min, 95% CI 0.6-1.9, n=594).
- No significant difference in quality of life measures between training types was noted.
- In isocaloric analysis, no significant difference in peak oxygen uptake was found (weighted mean difference 0.4 ml/kg/min, 95% CI -0.1-0.9, n=137).
Structured PICO
Does high-intensity interval training improve peak oxygen uptake and quality of life in patients with coronary artery disease compared with moderate-intensity continuous training?
P
Population
609 patients with coronary artery disease across 12 studies
I
Intervention
High-intensity interval training
C
Comparator
Moderate-intensity continuous training
O
Outcome
Peak oxygen uptake and quality of life (physical, emotional, and social domains)surrogate
High-intensity interval training improves peak oxygen uptake in patients with coronary artery disease compared to moderate-intensity continuous training, though this benefit is not seen when protocols are isocaloric.
Cite This Study
Neto et al. (2017) studied this question.