Are short workouts worth it? What a few minutes can do

Are short workouts worth it? Yes. The old idea that exercise only counts in blocks of ten minutes or more is gone from the official guidelines. A few minutes of real effort counts toward your week, and several short sessions add up to the same total as one long one.

There are two conditions. The minutes need some effort behind them, and a few minutes a day is a start, not the whole weekly target.

The 10-minute rule is gone

For years, guidelines said activity had to come in bouts of at least 10 minutes to count. Both major sets of guidelines have dropped that.

• The World Health Organization's 2020 guidelines state that "the previous stipulation that physical activity should be accumulated in at least 10 min bouts has been removed"
• The US guidelines made the same change. Their summary explains that the first edition counted only 10-minute bouts, and adds: "The second edition removes this requirement"

The reason is that the total matters more than the packaging. In the WHO paper's words, bouts "of any duration now count towards these recommendations".

Is 10 minutes of exercise a day enough

Enough to matter, not enough to reach the full target. Here is the arithmetic against the adult guideline of at least 150 minutes of moderate activity a week.

Harder effort goes further. The NHS says 75 minutes of vigorous activity a week can give similar health benefits to 150 minutes of moderate activity.

And the WHO is clear about the starting point: "any amount of physical activity is better than none".

What studies of very short bursts found

Very short bursts are sometimes called exercise snacks or micro workouts. Three kinds of evidence exist, and they are not equally strong.

A small trial of stair climbing. Researchers asked inactive young adults to climb three flights of stairs hard, three times a day, three days a week. After six weeks their fitness had improved compared with a control group. The authors call the approach effective "although the absolute increase was modest".

A summary of the research so far. A 2024 scoping review reached a careful conclusion. Short bursts had "modest effects on improving cardiorespiratory fitness", while the effects on mood, physical function and other outcomes "were equivocal". Most of the studies were small.

A large observational study. Researchers followed adults who did no formal exercise and wore activity trackers. Those whose days included a few bursts of vigorous effort, lasting a minute or two each, had lower recorded mortality than those with none. The authors wrote that such activity is "associated with substantially lower mortality". Associated is the key word. Nobody was assigned to do the bursts, so the study cannot show that they caused the difference.

Notice what the bursts had in common. They were vigorous. Stairs taken fast, not a stroll.

Do movement breaks help if you sit all day

Guidelines say to break up sitting, without setting a schedule. The NHS advises adults to "reduce time spent sitting or lying down and break up long periods of not moving with some activity".

How often should you stand up from your desk? Nobody knows precisely. The WHO panel found "insufficient evidence to specify quantitative thresholds of sedentary behaviour". Standing up every half hour is a reasonable habit. It is not an official threshold.

What lab evidence does show is that walking beats standing. In a meta-analysis of single-day trials, short standing breaks lowered blood sugar after meals compared with sitting, but "light-intensity walking was found to represent a superior physical activity break".

How to make a short workout count

1. Work hard enough that you can talk but not sing. That is moderate effort by the CDC's talk test
2. Stack them. Three five-minute sessions make fifteen minutes
3. Tie each one to something you already do, such as the kettle boiling or a meeting ending
4. Remove the setup. If it needs special clothes or a drive, it will not stay short
5. Count the week, not the day. What adds up is the weekly total

Short sessions are also the easiest thing to keep on a bad week, which is most of how to stay consistent with working out.

Where ShakeFit fits

ShakeFit is a rhythm workout game for your phone, and it is built in short units. Tracks run 1.5 to 4.5 minutes. There is a fresh Daily Shake every day, and nothing to set up beyond standing the phone against a wall.

That makes it easy to fit into a gap. A grade word is a game score, not a measure of effort, so use the talk test to judge how hard you are working. On an iPhone, if you let it read Apple Health, ShakeFit also shows the heart rate that an Apple Watch or a paired heart rate sensor measures while you play. And no study has tested whether ShakeFit produces the results in the research above.

ShakeFit is entertainment and general fitness software, not a medical device. If you have a health condition or are new to exercise, talk to a doctor first, and stop if you feel pain or dizziness.

Questions people ask

Are short workouts effective?

Yes, when they include real effort. Guidelines now count activity bouts of any length toward the weekly total, and small trials found that brief vigorous bursts improved fitness modestly. Evidence for other benefits from very short bursts is still thin.

Is 5 minutes of exercise a day enough?

It is a real start, not the whole target. Five minutes a day adds up to 35 minutes a week, against a guideline of at least 150 minutes of moderate activity. The WHO's position is that any amount of physical activity is better than none.

Is a 10-minute workout better than nothing?

Yes. Ten minutes a day comes to 70 minutes a week, about half the moderate-activity guideline, and health guidelines no longer set any minimum length for a session to count.

What are exercise snacks?

Exercise snacks are very short bursts of activity, often a minute or two, spread through the day. Climbing stairs fast is the classic example. A 2024 research summary found modest effects on fitness and unclear effects on other outcomes, mostly from small studies.

How often should you stand up from your desk?

There is no evidence-based schedule. The WHO found too little evidence to set one, and the NHS simply advises breaking up long periods of not moving. When you do get up, walk if you can. In lab trials, light walking did more than standing.

Sources

• World Health Organization, 2020 guidelines on physical activity and sedentary behaviour
• World Health Organization, Physical activity fact sheet
• US Office of Disease Prevention and Health Promotion, Physical Activity Guidelines for Americans: top things to know
• NHS, Physical activity guidelines for adults
• CDC, How to measure physical activity intensity
• Jenkins and colleagues, Do stair climbing exercise "snacks" improve cardiorespiratory fitness?, Applied Physiology, Nutrition, and Metabolism, 2019
• Jones and colleagues, Exercise snacks and other forms of intermittent physical activity for improving health in adults and older adults, Sports Medicine, 2024
• Stamatakis and colleagues, Association of wearable device-measured vigorous intermittent lifestyle physical activity with mortality, Nature Medicine, 2022
• Buffey and colleagues, The acute effects of interrupting prolonged sitting time in adults with standing and light-intensity walking, Sports Medicine, 2022