Health Evidence Library
Curated research from trusted sources. Transparent. Cited. Always free.
2 records match your filters
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How much strength training do adults need?
U.S. Department of Health and Human Services · U.S. Department of Health and Human Services · 2018
Federal guidelines recommend muscle-strengthening activity for all major muscle groups at least 2 days each week. You do not need a bodybuilding routine for it to count. Weights, resistance bands, body-weight exercises, carrying heavy loads, and heavy gardening can all qualify when they make the muscles work harder than usual.
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Is high-intensity interval training (HIIT) better than moderate-intensity continuous training for cardiovascular health?
Weston KS et al. · British Journal of Sports Medicine · 2014
In people with existing cardiometabolic disease, HIIT produces a larger improvement in cardiorespiratory fitness (VO2peak) than moderate-intensity continuous training (MICT) of similar time commitment, with a comparable safety profile in supervised settings. For the general population without existing disease, evidence suggests both approaches meaningfully improve cardiovascular health, and consistency matters more than which one is chosen.