Can Exercise Snacks Make You Fitter?
What the research says about short bursts of exercise for busy people
"I don't have time to exercise" is the most common reason I hear for not training. As a personal trainer in Redcliffe, I get it: work, kids, the commute and everything else soak up the day. But what if a few one-minute bursts spread across your day could make a real difference? That's the idea behind "exercise snacks", and the research behind them is surprisingly strong. Here's what it says.
What are exercise snacks?
Exercise snacks are very short bouts of hard effort, usually a minute or two, done a few times through the day. Think powering up a few flights of stairs, a minute of brisk uphill walking, or a quick set of squats or step-ups while the kettle boils. Researchers also call them vigorous intermittent lifestyle physical activity, or VILPA. A 2024 review of 32 studies found exercise snacks were practical and appeared safe, mostly in inactive but otherwise healthy adults (Jones et al., 2024).
Can a few minutes a day really make a difference to your health?
The early evidence says yes. Researchers led by the University of Sydney fitted activity trackers to more than 25,000 adults, average age around 62, who didn't do any formal exercise. People who did about three short bursts of vigorous activity a day, each lasting one to two minutes, had a 38% to 40% lower risk of dying from any cause or from cancer, and a 48% to 49% lower risk of dying from heart disease, compared with people who did none (Stamatakis et al., 2022).
A follow-up study in the same group found the link was especially strong for women. Women who did about 3.4 minutes of these bursts a day had a 45% lower risk of a major heart event like a heart attack or heart failure. Even 1.2 to 1.6 minutes a day was linked with a 30% lower risk (Stamatakis et al., 2025).
One honest caveat: these are observational studies. They show a strong link, not proof that the bursts alone caused the difference.
Do exercise snacks improve fitness?
They do, and this is where we have trial evidence. A 2026 meta-analysis of 11 randomised trials in inactive adults found exercise snacks significantly improved cardiorespiratory fitness, with moderate-certainty evidence. People also stuck with them: compliance was 91% (Rodríguez et al., 2026).
A second 2025 meta-analysis of 14 studies and 483 adults found similar fitness gains, along with lower total and LDL cholesterol (Wan et al., 2025).
Will exercise snacks help with weight loss or strength?
Probably not much on their own. Neither meta-analysis found meaningful changes in body weight or body fat, and the 2026 review found no significant improvement in leg strength or blood pressure (Rodríguez et al., 2026; Wan et al., 2025). The cholesterol results were mixed between the two reviews. Exercise snacks are a brilliant fitness booster and a great starting point, but they're not a replacement for proper strength training.
A personal trainer's tips for adding exercise snacks to your day
- Take the stairs, fast. Climb a few flights at a pace that gets you breathing hard. It's the classic exercise snack.
- Link them to habits. Do one before breakfast, one at lunch and one before dinner, so you don't have to remember.
- Use bodyweight. A minute of squats, step-ups or brisk marching on the spot works anywhere.
- Make it hard enough. You should be puffing by the end. Easy walking is great, but it's not a snack.
- Check with your GP first if you have a heart condition, high blood pressure or another health issue before adding hard bursts.
What this looks like in a 30-minute session in Redcliffe
Exercise snacks pair perfectly with personal training. In a 30-minute session at my Redcliffe studio, we build the strength and muscle that snacks can't, with squats, hinges, rows and presses. Between sessions, clients add two or three exercise snacks a day, like a fast set of stairs at work or a hill on the Redcliffe foreshore. Short, consistent and realistic for a busy week.
The bottom line
You don't need an hour at the gym to start getting fitter. A few one- to two-minute bursts of hard effort a day are linked with a much lower risk of heart disease and early death, and they measurably improve fitness. Pair them with strength training and you've got a plan that fits even the busiest week. That's how I help my personal training clients in Redcliffe stay consistent.
Exercise snacks FAQs
How long should an exercise snack be?
Most studies used bouts of about one to two minutes, and the trials used bouts of five minutes or less, done at least twice a day.
How hard should I go?
Hard enough that you're breathing heavily and couldn't hold a normal conversation by the end of it.
Can exercise snacks replace a workout?
They're a great start and a fitness booster, but for strength and muscle you still need resistance training.
Personal training in Redcliffe and Brisbane's northside
If you're around Redcliffe, Scarborough, Clontarf, Margate, Kippa-Ring or anywhere in Moreton Bay and want a training plan that fits a busy life, let's talk. Book a free consultation: call or text Michael on 0414 183 715 or email [email protected].
References
Jones MD, et al. Exercise snacks and other forms of intermittent physical activity for improving health in adults and older adults: a scoping review of epidemiological, experimental and qualitative studies. Sports Med. 2024;54(4):813-835. doi:10.1007/s40279-023-01983-1
Stamatakis E, et al. Association of wearable device-measured vigorous intermittent lifestyle physical activity with mortality. Nat Med. 2022;28(12):2521-2529. doi:10.1038/s41591-022-02100-x
Stamatakis E, et al. Device-measured vigorous intermittent lifestyle physical activity (VILPA) and major adverse cardiovascular events: evidence of sex differences. Br J Sports Med. 2025;59(5):316-324. doi:10.1136/bjsports-2024-108484
Rodríguez MÁ, et al. Effect of exercise snacks on fitness and cardiometabolic health in physically inactive individuals: systematic review and meta-analysis. Br J Sports Med. 2026;60(2):133-141. doi:10.1136/bjsports-2025-110027
Wan KW, et al. Effects of exercise snacks on cardiometabolic health and body composition in adults: a systematic review and meta-analysis. Scand J Med Sci Sports. 2025;35(8):e70114. doi:10.1111/sms.70114
Photo: Anna Sullivan on Unsplash.
