Study Suggests Heart Benefits May Require Far More Weekly Exercise Than Current Guidelines Recommend
Current public health guidelines recommend at least 150 minutes of moderate-to-vigorous physical activity per week for cardiovascular health. However, a large-scale study is challenging whether this benchmark is sufficient for meaningful heart protection.
The research found that while 150 weekly minutes of exercise offers some cardiovascular benefit, the reductions in risk for heart attacks and strokes were relatively modest. According to the study's analysis, achieving substantially greater protection may require approximately 560 to 610 minutes of activity per week—roughly 9 to 10 hours.
This translates to activities like brisk walking, running, cycling, or similar aerobic exercises performed most days of the week. The researchers noted that the dose-response relationship between exercise and cardiovascular outcomes appears to continue well beyond what most public health guidelines currently advise.
The findings highlight a potential gap between minimum recommendations and optimal heart health strategies. For individuals seeking to maximize cardiovascular risk reduction, significantly higher activity levels than the standard guideline may be necessary, though researchers emphasize that any physical activity remains beneficial compared to none.
The study adds to ongoing discussions about how physical activity guidelines should be framed, particularly as research continues to refine understanding of the precise exercise doses needed for different health outcomes.