Exercise & FitnessHIIT Beats All Other Exercise Types for Raising HDL in Metabolic Syndrome
A comprehensive network meta-analysis of 56 randomized controlled trials involving nearly 3,800 people with metabolic syndrome found that high-intensity interval training is the most effective exercise type for raising HDL cholesterol. HIIT performed at 750–1,500 MET-min per week and 80–90% of maximum oxygen uptake produced the greatest HDL gains. Combined aerobic and resistance training came in second. Importantly, more is not always better — very high exercise volumes actually reduced HDL benefits across all modalities. The research also identified a sweet spot of around 1,070 MET-min per week where HDL improvement peaks, providing clinicians and patients with precise, actionable exercise prescription targets.
