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Finding time for exercise can be difficult, especially for people balancing work, family and other responsibilities. But new research suggests that very short bursts of vigorous physical activity may provide surprisingly large health benefits, with researchers finding that one minute of vigorous activity could deliver cardiovascular benefits comparable to several minutes of moderate exercise.
Researchers Tracked More Than 73,000 Adults
The study analyzed wearable-device data from 73,485 adults with an average age of about 61. Participants wore activity monitors continuously for seven days, allowing researchers to measure how much time they spent moving at light, moderate and vigorous intensities instead of relying only on what people remembered doing. The researchers then examined how different levels of activity were associated with cardiovascular and other major health outcomes.
One Minute Could Equal Several Minutes of Moderate Exercise
The analysis found that one minute of vigorous activity was associated with health effects comparable to about 5.4 minutes of moderate activity for major adverse cardiovascular events. For cardiovascular mortality, the estimated equivalent was about 7.8 minutes of moderate activity, showing why headlines describing vigorous exercise as several times more efficient than moderate exercise emerged from the research.
The Biggest Difference Appeared With Heart-Related Outcomes
The researchers specifically examined major adverse cardiovascular events, cardiovascular death, Type 2 diabetes, cancer and overall mortality. For major cardiovascular events, one minute of vigorous activity was associated with an equivalent response to roughly 5.4 minutes of moderate activity, while cardiovascular mortality showed an even larger time-equivalent difference. These findings suggest that intensity may make physical activity more time-efficient, although they do not mean vigorous exercise is literally six times better for every person.
What Counts as Vigorous Activity?
Vigorous exercise means working hard enough that your breathing becomes difficult and carrying on a normal conversation is no longer easy. Examples can include running, fast cycling, swimming, quickly climbing stairs, intense dancing, jumping exercises and some high-intensity interval training, with the appropriate intensity depending on a person’s age and fitness level.
You May Not Need a Traditional Workout to Get Started
The research also highlights the potential of vigorous activity that happens naturally during the day rather than during a formal gym session. Climbing stairs quickly, walking uphill at a fast pace or carrying something heavy can create short periods of challenging movement that add up over the course of a day. Researchers have described these brief bursts as vigorous intermittent lifestyle physical activity, or VILPA.
Short Bursts May Be Especially Useful for Busy Adults
The findings could be particularly relevant for people who struggle to fit traditional workouts into their schedules. Researchers said even small amounts of vigorous activity may be useful for adults who are short on time or at higher risk of disease, because brief bursts can be incorporated into everyday routines rather than requiring a long dedicated exercise session.
Walking Still Offers Important Health Benefits
The findings do not mean people should stop walking or replace all moderate exercise with intense activity. Walking is accessible to people with many different fitness levels and can support mobility, muscle function, stress management, sleep and general physical activity, while brisk walking can also provide moderate-intensity exercise. More movement is generally preferable to spending the day inactive.
More Intensity Is Not Right for Everyone
Vigorous activity can place substantially more demand on the heart, lungs and muscles than light activity, so it should be approached according to a person’s current fitness and health status. People who are new to exercise, have health conditions or are concerned about whether intense activity is appropriate should speak with a healthcare professional before making major changes to their routine.
One Minute Can Be a Useful Starting Point
The study offers an encouraging message for people who believe they need a long workout before exercise can make a difference. Short bursts of vigorous movement were associated with meaningful cardiovascular benefits and appeared considerably more time-efficient than moderate activity, but the findings should complement rather than replace established exercise habits. For many people, the practical takeaway is simple: look for safe opportunities to move more often, and when appropriate, add brief bursts of challenging activity to an otherwise active day.