Quick answer: Researchers use the term vigorous intermittent lifestyle physical activity, or VILPA, to describe short bursts of hard effort that happen during ordinary daily life, such as taking the stairs quickly or walking very fast to catch a bus. In large studies that measured movement with wrist-worn activity trackers, adults who did not exercise but who had a few of these one- to two-minute bursts each day had lower rates of death, heart events, and cancer over roughly seven years than people who had none. These were observational studies, so they show an association rather than proof of cause, but the pattern has now appeared in several groups of people.
One of the most common things I hear from patients is that they know exercise matters but simply cannot find the time for a workout. That is a real barrier, and it is one reason I have been following a newer line of research that looks at very short bursts of vigorous movement woven into everyday life. The question these studies ask is simple: if you never go to the gym, do the brief moments when you push yourself hard during the day still count for anything?
In this article, I want to explain what VILPA means, walk through four free, peer-reviewed studies on it, and share how I think about the findings as a functional medicine doctor, including where the research is still limited.
What vigorous intermittent lifestyle physical activity means
Vigorous activity is effort hard enough that you are breathing heavily and would find it difficult to hold a conversation. Most people associate that level of effort with running, cycling, or a fitness class. VILPA refers to the same intensity, but in brief bouts of about one to two minutes that happen as part of normal living rather than as planned exercise. The researchers give examples such as climbing stairs, walking very fast while commuting or moving from place to place, and carrying heavy shopping bags.
These bursts are too short and too scattered to show up on a questionnaire, because most people would never think to report them. That is why this research depends on wearable activity trackers, which record movement continuously and allowed the investigators to use a validated, machine learning method to tell vigorous bursts apart from lighter activity.
The first study: brief bursts and mortality
The first major study, published in 2022 in Nature Medicine, used data from the UK Biobank, a large research project in which thousands of adults wore a wrist accelerometer for a week. The researchers focused on 25,241 people with an average age of about 62 who reported doing no leisure-time exercise at all, and they followed them for an average of 6.9 years.
Compared with people who had no VILPA, those who had about three short bursts per day, which was the typical amount in the group, had a 38 to 40 percent lower risk of death from any cause and from cancer, and a 48 to 49 percent lower risk of death from cardiovascular disease. A daily total of about 4.4 minutes of VILPA was associated with a 26 to 30 percent lower risk of all-cause and cancer mortality. When the researchers ran a similar analysis in more than 62,000 people who did exercise, they found that vigorous activity in exercisers showed a similar pattern, which suggests the intensity of the effort may matter more than whether it happens in a gym.
The second study: brief bursts and cancer risk
A follow-up study from the same research group, published in 2023 in JAMA Oncology, looked at new cancer cases in 22,398 nonexercising UK Biobank participants with an average age of 62. Over an average of 6.7 years, there were 2,356 new cancer cases. Almost all of the VILPA the researchers recorded came in bouts lasting one minute or less.
A minimum of about 3.4 to 3.6 minutes of VILPA per day was associated with a 17 to 18 percent lower risk of developing any cancer compared with none. For a group of 13 cancer types that research has already linked to low physical activity, a typical daily amount of about 4.5 minutes was associated with a 31 to 32 percent lower risk. The authors noted that the exercise questions used to select participants were asked about five and a half years before the activity trackers were worn, which is one of the study’s limits.
The third study: heart events and differences between women and men
The third study, published in 2025 in the British Journal of Sports Medicine, asked whether these bursts were linked to major cardiovascular events, meaning heart attack, heart failure, and stroke, and whether the pattern was different in women and men. It included 13,018 women and 9,350 men from the UK Biobank who did not exercise, followed for an average of 7.9 years.
The clearest findings were in women. Women whose daily VILPA totaled about 3.4 minutes had a 45 percent lower rate of major cardiovascular events and a 67 percent lower rate of heart failure than women with none. Even about 1.2 to 1.6 minutes per day was associated with a 30 percent lower rate of major cardiovascular events, a 33 percent lower rate of heart attack, and a 40 percent lower rate of heart failure. In men, the dose-response curves were less clear and mostly did not reach statistical significance, so the researchers were careful not to overstate the findings for men.
The fourth study: a national sample of adults in the United States
Because the first three studies drew on the same UK group, it was important to see whether the pattern held elsewhere. A 2026 study in the International Journal of Behavioral Nutrition and Physical Activity examined 3,293 adults from the National Health and Nutrition Examination Survey, a nationally representative survey in the United States, who reported no structured exercise. Their average age was about 51, and they wore wrist activity trackers before being followed for an average of 6.7 years.
People with the typical amount of about five bursts per day, each lasting up to a minute, had a 44 percent lower risk of death from any cause than people with none. The benefit seemed to level off beyond roughly eight bursts per day. This study also offers a useful note of caution. When the researchers removed people who already had heart disease or cancer at the start, the association weakened and was no longer statistically clear, which suggests that some of the relationship may reflect the fact that people who are already unwell move less vigorously. The authors called for longer and larger studies, and I think that is a fair reading.
How to read these results
These are observational studies, which means they can show that two things go together but cannot prove that one causes the other. The UK studies tried hard to reduce bias by excluding people who had an event in the first two years and people in poor health, and they reported that unmeasured factors were unlikely to explain the results fully, but no observational design can rule out every alternative explanation. The UK Biobank participants were also overwhelmingly White, and wrist trackers may miss some vigorous effort, such as walking uphill with a load.
With those limits in mind, what I find meaningful is the consistency. Across different outcomes and two countries, a very small amount of vigorous daily movement kept appearing alongside better health over time. That fits with earlier experimental work, cited by these researchers, showing that short, repeated bouts of hard effort such as stair climbing can improve cardiorespiratory fitness in previously inactive adults within a few weeks.
Why short bursts of effort may matter
Vigorous effort asks more of the heart, lungs, blood vessels, and muscles than easy movement does, and it tends to produce larger changes in a shorter time. One of the strongest predictors of a long, healthy life is cardiorespiratory fitness, which I discuss in my article on VO2 max and longevity. Brief bursts of hard work are a plausible way to nudge that fitness upward for someone who is not ready for a formal program. Muscle also matters a great deal as we age, and short efforts like climbing stairs or carrying groceries rely on the same leg and grip strength I write about in my articles on strength training for longevity and grip strength as a longevity marker.
How I think about this as a functional medicine doctor
I see VILPA as an encouraging starting point rather than a replacement for regular exercise. For someone who is currently inactive, the message from this research is that small amounts of hard effort may still be worthwhile, and that is a far more approachable goal than an hour at the gym. Taking the stairs at a brisk pace, walking quickly for a minute or two between errands, or picking up the pace on part of a daily walk are all ways people naturally accumulate this kind of activity.
These bursts also pair well with other simple habits. My article on how many steps a day you need covers the research on total daily movement, and my review of walking after meals and blood sugar looks at how short walks can fit around the day. Vigorous effort is not right for everyone, so if you have a heart condition, high blood pressure, joint problems, or have been inactive for a long time, talk with your own clinician before adding harder bursts of activity.
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Frequently asked questions
What counts as a burst of vigorous activity in daily life?
In these studies, a burst was a short period, usually up to one or two minutes, of effort hard enough to make you breathe heavily. The researchers gave examples such as climbing stairs, walking very fast while getting from place to place, and carrying heavy bags. The key feature is the intensity of the effort rather than the specific activity.
How much VILPA was linked to lower risk in these studies?
The amounts were small. In the UK studies, about three to four and a half minutes per day, often in bouts of a minute or less, was associated with lower mortality and cancer risk, and in women even one to two minutes per day was associated with fewer cardiovascular events. In the US study, about five short bursts per day was the typical amount linked to lower mortality.
Does this mean I do not need to exercise?
No. These studies looked at people who did not exercise and found that brief vigorous bursts were associated with better outcomes than none at all. Regular exercise, including strength training, has its own strong research base, and short bursts are best seen as a helpful addition or a first step.
Were the results the same for men and women?
For mortality and cancer, the UK studies included both men and women. For heart events specifically, the 2025 study found clear associations in women and less clear results in men, so more research is needed to understand that difference.
Sources
This article is for educational purposes only and is not medical advice. It does not replace an individual evaluation. Talk with your healthcare provider before making changes to your diet, exercise, supplements, or medications, especially if you are pregnant, nursing, or managing a health condition.
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