A new analysis published in the British Journal of Sports Medicine suggests that the widely accepted standard of 150 minutes of weekly moderate exercise may only be a baseline, not an optimal dose for heart health. Researchers found that significantly higher volumes of activity, potentially up to 610 minutes weekly, are linked to greater reductions in cardiovascular risk.
Revisiting the 150-Minute Standard for Cardiovascular Protection
For over a decade, global health organizations like the World Health Organization and the Centers for Disease Control and Prevention have championed 150 minutes of moderate-intensity physical activity per week as the gold standard for health. While this remains a vital target for general well-being, recent data from the UK Biobank suggests that the threshold for maximal heart protection is significantly higher.
Researchers from Macao Polytechnic University analyzed data from 17,088 participants, with an average age of 57, followed over an eight-year period. The study revealed that those meeting the current 150-minute recommendation saw a 9% reduction in cardiovascular events. However, participants who engaged in 560 to 610 minutes of activity per week achieved a risk reduction exceeding 30%.
Why Personalized Fitness Targets Matter
The study challenges the “one size fits all” approach to exercise prescriptions, arguing that blanket recommendations ignore individual fitness levels. According to Ziheng Ning, a researcher involved in the study, the standard guidelines provide a necessary safety margin, but optimal protection requires a more tailored strategy.
The data shows that those with lower baseline fitness (VO2 max) require 30 to 50 minutes more activity than their fitter counterparts to achieve the same protective benefits. For instance, to hit a 20% risk reduction, individuals with lower fitness levels needed 370 minutes of moderate-to-vigorous activity, while those with higher fitness levels reached that same threshold in 340 minutes.
Integrating High-Intensity Bursts into Daily Routines
Achieving 600 minutes of activity per week—roughly 85 minutes a day—can appear daunting for the average person juggling professional and domestic responsibilities. However, experts emphasize that this time does not need to be spent exclusively in a gym or during dedicated “workout” blocks. Accumulation through daily movement is key.
Adding short, high-intensity intervals can make shorter sessions more effective. As Dr. Tamanna Singh of the Cleveland Clinic notes, “Tambahkan tantangan kecil, seperti interval lari di sela-sela jalan kaki atau menambah resistensi pada sepeda statis. Hal ini mendorong tubuh menjadi lebih efisien secara aerobik.”
Furthermore, research published in the European Heart Journal highlights that even small amounts of vigorous activity can offer profound benefits. According to Dr. Leana Wen of George Washington University, a simple “talk test” can determine if you are in the high-intensity zone: if you are breathing hard enough that you cannot hold a conversation, you are likely hitting the intensity required to trigger significant metabolic and cardiovascular improvements.
Expert Perspective on the Findings
While the findings are compelling, they remain observational. Experts caution that while the correlation between higher activity levels and heart health is strong, it does not confirm a direct cause-and-effect relationship in all cases. Keith Diaz, an associate professor at Columbia University Medical Center, notes that the study reinforces existing knowledge but expresses skepticism about the practicality of the higher weekly targets for most people.
For those looking to improve their heart health, the consensus remains that movement is a continuum. Whether you are aiming for the initial 150-minute target or looking to push toward higher durations, the most important step is consistency. Always consult with your healthcare provider before significantly increasing your physical activity, especially if you have a history of heart disease or mobility concerns.
