Beyond 150 Minutes: Why the Standard Exercise Guideline Might Just Be a Warm-Up

For years, the golden rule of public and heart health has been simple: get at least 150 minutes of moderate-to-vigorous physical activity (MVPA) each week. It’s a manageable target, roughly equating to 20–30 minutes of brisk walking or cycling a day.
But a fascinating May 2026 study published in the British Journal of Sports Medicine suggests that while 150 minutes is a great start, it might not be enough for optimal heart health. According to the researchers, securing substantial cardiovascular protection requires an activity volume up to four times higher than the current minimum.
Here is a breakdown of the study, its key findings, and what it means for your weekly routine.

The Study at a Glance

Unlike many older studies that relied on participants self-reporting their exercise (which often leads to overestimation), this study used objective, device-measured data.
Researchers from Macao Polytechnic University analyzed data from 17,088 participants (average age of 57) in the UK Biobank. They tracked two critical metrics:

1. Physical Activity: Measured via a wrist-worn accelerometer worn 24/7 for a week.
2. Cardiorespiratory Fitness (CRF): Estimated using a VO₂ max stationary cycle test to see how efficiently their hearts and lungs used oxygen.
   The participants were then followed for an average of 7.8 years to monitor for major cardiovascular events like heart attacks, heart failure, and strokes.

Key Takeaways

The findings challenge the “one-size-fits-all” approach to exercise guidelines by highlighting how baseline fitness changes the equation.

• The 150-Minute Mark is Just a “Safety Margin”: Hitting the standard 150 minutes of MVPA per week yielded a consistent but modest 8–9% reduction in cardiovascular disease risk. It’s beneficial, but it acts more as a baseline safety net than a biological shield.
• Optimal Protection Requires Major Mileage: To achieve a substantial reduction in cardiovascular risk (greater than 30%), participants needed to clock 560 to 610 minutes per week of moderate-to-vigorous activity. That averages out to about 1 hour and 20 minutes of daily exercise.
• Fitness Level Changes the Prescription: The study found a non-linear relationship between activity, fitness, and risk. Highly “deconditioned” (less fit) individuals actually need slightly more exercise volume to achieve the same relative risk reductions as their fitter peers.

What This Means for You

The researchers conclude that future health guidelines should move away from a universal minimum and instead adopt a “fitness-stratified prescription.” Just like a doctor wouldn’t prescribe the exact same dose of medication to every patient regardless of their baseline health, exercise targets should be calibrated to an individual’s current cardiorespiratory fitness.
The caveat? While 560–610 minutes a week is the biological optimum for heart health, experts emphasize that public health messaging needs to remain realistic. Going from zero to nine hours of intense exercise a week is a recipe for injury and burnout.
If you are currently sedentary, the 150-minute guideline remains your best first goal—every single minute of movement counts and actively chips away at your baseline risk. But if you’re already hitting that minimum and wondering if adding an extra cycling class or weekend hike will do your heart any good, the science is clear: more is absolutely better.