What Counts as a Workout? The 150-Minute Myth, Debunked

You type into Google: "What counts as a workout?" Maybe you're hoping the 20-minute walk to the train counts, or you're secretly praying that yoga class you took last month somehow still counts. I'm going to give it to you straight: most of what you've heard about "working out" is either outdated, overly complicated, or just plain wrong. The good news? The truth is simpler and more flexible than you think.

Here's the blunt truth: you don't need to be a gym rat to get real benefits. The World Health Organization (WHO) says adults should aim for at least 150 to 300 minutes of moderate-intensity aerobic activity per week, or 75 to 150 minutes of vigorous-intensity activity, plus muscle-strengthening on two or more days (World Health Organization). But that's a guideline, not a commandment. And it's not the whole story.

Does a 10-Minute Walk Count as a Workout?

Yes, absolutely. The WHO's own principle is that some physical activity is better than none, and more is better (World Health Organization). So a 10-minute walk absolutely counts toward your weekly total. In fact, a recent study found that increasing moderate-to-vigorous physical activity by just 5 minutes a day in the least active adults could prevent about 6% of all deaths (Lancet small increments physical activity study). Five minutes. Not an hour. So take the stairs instead of the elevator, park farther away, or walk while you're on the phone. It all adds up.

Do I Need 10,000 Steps a Day?

That's a myth, and it needs to die. The 10,000-step target was never based on solid science—it was a marketing gimmick from a Japanese pedometer company in the 1960s. The Lancet meta-analysis of 15 cohorts with over 47,000 adults found that the risk of death levels off at about 6,000 to 8,000 steps per day for adults 60 and older, and 8,000 to 10,000 steps for those under 60 (Lancet Public Health steps meta-analysis). So if you're under 60, aiming for around 8,000 steps is plenty. If you're over 60, 6,000 is your sweet spot. And here's the key: it's about the dose, not the arbitrary number. So stop obsessing over 10K and start focusing on consistency.

Is Strength Training Really Necessary?

Yes, and I'm not saying that just because I'm a coach. The WHO recommends muscle-strengthening activities on at least two days a week (World Health Organization). And the evidence is clear: muscle-strengthening activities are associated with a 10% to 17% lower risk of all-cause mortality, cardiovascular disease, total cancer, diabetes, and lung cancer (BJSM muscle-strengthening meta-analysis). The sweet spot is about 30 to 60 minutes per week of strength work—that's the J-shaped curve, where the maximum benefit is around that amount (BJSM muscle-strengthening meta-analysis). So you don't need to be a bodybuilder. Two 20-minute sessions of bodyweight exercises like squats, push-ups, and planks can do the trick. And if you combine strength training with aerobic activity, you get an even bigger mortality reduction—40% to 46% lower risk of all-cause and cardiovascular mortality (World Health Organization). That's a win-win.

What About Sitting All Day at Work?

Here's where it gets scary. A study in JAMA Network Open found that adults who mostly sat at work had a 16% higher risk of all-cause mortality and a 34% higher risk of cardiovascular disease mortality compared to those who were mostly not sitting (JAMA Network Open occupational sitting study). But here's the good news: those who alternated sitting and not sitting had no higher risk than those who didn't sit much. So get up every 30 minutes, do a few squats, walk to the water cooler, or stand during phone calls. It's not about being perfect—it's about breaking up the sitting. The WHO recommends limiting sedentary time for all age groups (WHO physical activity fact sheet). So your standing desk isn't a gimmick; it's a lifesaver.

Is Yoga a Real Workout?

Yes, but it depends on the style. Gentle yoga might not get your heart rate up to moderate intensity, but it can count as muscle strengthening if it includes holds and balance. Plus, yoga has specific benefits. A meta-analysis of 22 randomized trials in people with insomnia found that yoga was associated with about 111 extra minutes of sleep per night (BMJ Evidence-Based Medicine exercise and insomnia meta-analysis). That's almost two more hours of sleep! So if you're struggling with sleep, yoga is a legitimate tool. But if you're looking for aerobic benefits, you might need to do a more vigorous style like vinyasa or power yoga, or combine it with walking or jogging.

What About High-Intensity Interval Training (HIIT)?

If you're short on time, HIIT is your best friend. The WHO says you can do 75 to 150 minutes of vigorous-intensity activity per week instead of 150 to 300 minutes of moderate intensity (World Health Organization). So you can cut your time in half. But don't fall for the myth that you need to do 20 minutes of all-out sprints every day. Even 5-minute bursts count. The key is intensity—you should be working hard enough that you can't hold a conversation comfortably. And remember, the WHO's guideline is a minimum. You can go beyond 300 minutes of moderate or 150 minutes of vigorous for additional health benefits (WHO 2020 guidelines on physical activity and sedentary behaviour). But if you're starting from zero, even small increments help.

So, What's the Bottom Line?

Stop overthinking it. You don't need a perfect routine. You need to move more and sit less. Aim for 150 minutes of moderate activity a week, add two days of strength training, and break up your sitting. If you're over 60, 6,000 steps a day is a great target; under 60, aim for 8,000. And if you're sitting at a desk all day, get up every 30 minutes. The best workout is the one you'll actually do. So start with a 10-minute walk, add some squats, and build from there. Your future self will thank you.

Sources

• World Health Organization - https://www.who.int/news/item/26-06-2024-nearly-1.8-billion-adults-at-risk-of-disease-from-not-doing-enough-physical-activity
• WHO/Lancet Global Health - https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(24)00150-5/fulltext
• Lancet Public Health steps meta-analysis - https://doi.org/10.1016/S2468-2667(21)00302-9
• BJSM muscle-strengthening meta-analysis - https://doi.org/10.1136/bjsports-2021-105061
• JAMA Network Open occupational sitting study - https://doi.org/10.1001/jamanetworkopen.2023.50680
• BMJ Evidence-Based Medicine exercise and insomnia meta-analysis - https://doi.org/10.1136/bmjebm-2024-113512