The Study
Effects of Exercise Snacks on Cardiometabolic Health and Body Composition in Adults: A Systematic Review and Meta‐Analysis
This study looked at lots of small experiments where people did quick bursts of exercise during the day. It found that these bursts might help lower bad cholesterol and improve heart fitness — but only in people who don’t usually move much. It doesn’t prove it works for everyone or for a long time.
Analysis score
Maximum 100 for a systematic review with meta-analysis.
Where the score came from
Doing short, intense exercises like climbing stairs or jumping jacks a few times a day can help you get stronger and lower bad cholesterol.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 560 / 100
Quality score
The highest quality evidence. Systematic reviews and meta-analyses that pool randomized controlled trials, giving the most reliable summary of experimental evidence.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes—improving power and lowering bad cholesterol reduces heart disease risk, even without weight loss.
- 2Peak power up by 0.68 SMD, bad cholesterol (LDL) down by 0.65 SMD, total cholesterol down by 0.65 SMD, VO2max up by 1.43 SMD (uncertain), no change in weight, fat, good cholesterol, or triglycerides.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Scandinavian Journal of Medicine & Science in Sports
Year
2025
Authors
Ke-wen Wan, Zi-han Dai, Po-San Wong, W. Huang, E. F. Lei, J. Little, Feng-Chang Lin, B. Tam
Related Content
Claims (6)
Doing just a few minutes of super-intense bursts of exercise—like sprinting or jumping—several times a day can make you stronger and better at using oxygen, even if you’ve been totally inactive.
Doing quick bursts of exercise throughout the day—like climbing stairs or doing squats for a minute at a time—won’t help you lose weight or fat by itself. You’d need to do more or change your diet too.
If you're not very active, doing tiny bursts of exercise throughout the day—like climbing stairs or walking fast for a minute—can lower your 'bad' cholesterol and overall cholesterol, which helps protect your heart.
Taking short bursts of exercise throughout the day—like climbing stairs or walking for a few minutes—doesn’t seem to help raise your good cholesterol or lower your blood fats, even though it might help reduce your bad cholesterol and overall cholesterol levels.
Doing quick, intense bursts of exercise—like sprinting in place or climbing stairs for 30 seconds—several times a day can make your muscles stronger and more powerful, even if you’re not normally active.
Short bursts of exercise throughout the day—called 'exercise snacks'—might help people who don’t move much get better at using oxygen during activity, but we’re not super sure because the studies are all over the place and not super reliable.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.