The Effects of High-Intensity Interval Training on Exercise Capacity and Prognosis in Heart Failure and Coronary Artery Disease: A Systematic Review and Meta-Analysis

Figure 5

Subgroup analysis of HIIT and MICT on peak VO₂ according to training duration (≤8weeks, 8-12weeks, and ≥12weeks). HIIT: high-intensity interval training; MICT: moderate-intensity continuous training; peak VO₂: peak oxygen consumption; CAD: coronary artery disease; HF: heart failure; SD: standard deviation; CI: confidence interval.