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Published August 8, 2026 — BMJ Group / British Journal of Sports Medicine

The 150-Minute Guideline Is a Floor, Not a Ceiling

Most public health guidance recommends at least 150 minutes a week of moderate-to-vigorous physical activity. A large observational study published in the British Journal of Sports Medicine confirms that’s a reasonable minimum — but finds that the real cardiovascular payoff shows up at a level far above it.

What the Data Showed

Researchers analyzed device-measured activity data from over 17,000 UK Biobank participants, tracked for roughly eight years. Adults who met the standard 150-minute guideline had an 8 to 9% lower risk of a serious cardiovascular event, like a heart attack or stroke, compared with inactive people — a real but modest benefit. Substantially greater protection, a 30%+ reduction in cardiovascular risk, was associated with 560 to 610 minutes of moderate-to-vigorous activity per week — roughly 9 to 10 hours, or three to four times the standard recommendation. Only about 12% of participants in the study reached that level.

Fitness level mattered too. People with the lowest baseline fitness needed about 30 to 50 additional minutes of weekly activity compared to fitter individuals to achieve the same degree of risk reduction — meaning the same clock-minutes of exercise deliver somewhat different protection depending on where you’re starting from.

This Doesn’t Make the 150-Minute Guideline Wrong

The researchers were explicit that this finding reinforces, rather than undermines, the existing public health guideline. It remains a robust, evidence-backed minimum that delivers real, measurable benefit. What the data adds is a more honest picture of the dose-response curve above that floor: benefits keep climbing well past 150 minutes, and people who are able to do more should know that more genuinely buys them additional protection, not just diminishing returns. The researchers suggested future guidelines may need to separate the minimum volume needed for a basic safety margin from the substantially higher volume associated with optimal cardiovascular risk reduction.

Making the Higher Range Realistic

560 to 610 minutes a week works out to roughly 80 to 90 minutes a day if spread evenly, though most people will find it easier to bank it across a handful of longer sessions — a couple of hour-long rides, a few runs, and some brisk walking layered in. It doesn’t need to be one activity; cycling, running, brisk walking, and swimming all count toward the moderate-to-vigorous total. A GPS watch that tracks intensity zones makes it far easier to see how close you’re actually getting to that weekly number, rather than guessing:

• COROS PACE 4 — tracks weekly training load and intensity across running, cycling, and swimming
• Garmin Forerunner 970 — includes adaptive training tools that factor in weekly moderate-to-vigorous minutes

The Bottom Line

150 minutes a week remains a legitimate, evidence-backed target and a meaningful improvement over inactivity. But if you’re already consistent with that baseline and want to push cardiovascular risk reduction further, this research suggests the ceiling is much higher than most guidelines imply — with the biggest gains showing up closer to 9 or 10 hours a week for those able to work up to it.

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Source: Liang Z, et al. Joint non-linear dose–response associations of device-measured physical activity and cardiorespiratory fitness with cardiovascular disease. British Journal of Sports Medicine. 2026. DOI: 10.1136/bjsports-2025-111351 | This article was published September 2026.