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This is how much exercise you should be doing per day, according to experts

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This is how much exercise you should be doing per day, according to experts

Exercise is good for you. Even in today’s social media-led world of differing opinions, I think most people can agree on that. But experts are often hit with the same question – how much exercise should I be doing?

As with the answer to most fitness questions, it depends. It depends on what your goals are, where your starting point is and your wider situation. However, I still think it’s an important question for the average person to ask.

Why? Because most people are incredibly busy, and fitting your fitness efforts into an already rammed weekly routine can be tricky. Knowing a ball-park figure to aim for, and some tricks for achieving it, can bridge the gap between someone doing no exercise and someone doing some exercise. And as you’ll find out, this can make a significant difference to your health.

So, I spoke with a cohort of industry-leading experts to determine how much exercise the average person should be doing each day for optimal health.

How much exercise should you do each day?

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If I could have you take one thing away from this feature, it would be that movement in any form is usually worthwhile. It doesn’t matter if you can’t commit to a full hour in the gym or hit 10,000 steps a day, “every move counts towards better health”, according to the latest World Health Organisation guidelines on physical activity.

Small amounts of movement can have an impressive impact, whether that’s swapping escalators for stairs where possible or squeezing in a five-minute bodyweight workout wherever you can.

I would also suggest establishing weekly targets, rather than daily ones, as this provides more margin for error amid the unpredictability of life, and can better reflect your consistent behaviours over time. Now, over to the experts.

“Most evidence shows that even doing very small amounts of exercise or physical activity is beneficial for health, but more is better for us,” says Dr Richard Blagrove, a senior lecturer in physiology at Loughborough University.

“For example, even burning 500 kcal per week shows reductions in risk of mortality compared to being completely inactive – according to a study in the British Journal of Sports Medicine.”

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“The same is true for resistance training. Doing only one set of lifting heavy a couple of times per week, to repetition failure, shows benefits to maximum strength that confer benefits to functional performance. But again, doing more than one set is more beneficial in a dose-response way.”

Read more: 21 best men’s gym bags for carrying all your workout kit

Walking

A similar approach can be applied to walking, says Dr Elroy Aguiar, an assistant professor of exercise science in the University of Alabama’s department of kinesiology.

“The research suggests that the ideal combination for getting most benefits would be walking around 7,000 to 8,000 steps per day, in terms of volume, and part of that should include 20 to 30 minutes of walking at 100 to 130 steps per minute or faster,” he explains.

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A study by the University of Granada concluded that, “if we focus on the risk of dying from cardiovascular disease, most of the benefits are seen at around 7,000 steps [per day]”, while 8,000 steps would “significantly reduce the risk of premature death”. It found that faster walking has similar benefits too.

“But the new WHO messaging also says that all movement counts to some degree,” Dr Aguiar adds. “Accumulating little bursts of activity throughout the day just to elevate your heart rate and your metabolic rate a little bit – like walking a bit faster or further to your car – still counts in terms of exercise.”

A large meta-analysis published in the European journal of preventive cardiology concluded that there was a significant link between higher step counts and a lower risk of both all-cause mortality (any reason someone might die) and cardiovascular mortality (death due to diseases of the heart and blood vessels).

These benefits could be seen from daily step totals as low as 3,867 for all-cause mortality and 2,337 for cardiovascular mortality – a far cry from 10,000. Better yet, increasing your daily step total by 1,000 “correlated with a significant reduction of all-cause mortality of 15 per cent, and similarly, a 500-step increment correlated with a reduced risk of CV mortality of seven per cent”.

In plain terms: a little movement can do a lot of good. However, as a blanket rule, Dr Aguiar points to the WHO guidelines, which have also been adopted by the NHS.

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150 minutes of exercise across the whole week is recommended

150 minutes of exercise across the whole week is recommended (Getty Images)

Physical activity guidelines

“Adults should aim to do strengthening activities that work all the major muscle groups (legs, hips, back, abdomen, chest, shoulders and arms) on at least two days a week,” the NHS website states.

“[They should] do at least 150 minutes of moderate-intensity activity a week, or 75 minutes of vigorous-intensity activity a week, spreading exercise evenly over four to five days a week, or every day.”

The NHS also recommends minimising the time you spend sitting or lying down, and breaking up lengthy sedentary periods with a spot of activity. On the whole, these figures are a good benchmark and worth keeping top of mind.

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Strength training

One area I haven’t addressed from these guidelines is strength training. The WHO guidelines highlight that doing this twice per week can yield impressive results and we now know due to recent studies that strength training can be especially beneficial for bone and muscle strength in midlife, as hormones start to change.

“The evidence suggests that lifting weights regularly – a couple of times per week – improves body composition, glucose homeostasis [linked to risk of type 2 diabetes], muscle mass, cognitive function, metabolic processes and mobility,” says Dr Blagrove.

If you’re thinking of committing to a couple of strength training sessions per week, leading strength coach Dan John recommends full-body workouts for the best results. And these can be as short as 10 minutes for beginners.

“The body is one piece,” he says. “For example, walking is not just for your feet or ankles or legs or butt. Walking does marvels for the spinal column. Walking does marvels for the eyes and the vestibular system. It’s a whole-body movement.”

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He recommends focussing on “movements, not muscles” and including an element of pushing, pulling, hinging (at the hips), squatting and carrying in each week of your training.

As case studies, he shares two of his favourite quick kettlebell workouts, which cover most bases; the humane burpee and the SparHawk.

Or, if you want more flexibility in your exercise plans, you can combine his three favourite kettlebell exercises – the kettlebell swing, goblet squat and Turkish get-up, or press-up if this last option is too tricky – in any way you want.

“[In a workout, I think doing] 75 swings, 15 goblet squats and 15 press-ups [or 10 Turkish get-ups] circles that near perfect volume load for a new person who’s in some kind of shape,” John says.

Experts recommend focusing on movements, not muscles

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Experts recommend focusing on movements, not muscles (Getty Images)

Cardiovascular exercise

“The only parameter of fitness that strength training tends not to change is cardiorespiratory function, which aerobic-based exercise is needed for,” says Dr Blagrove.

For those newer to fitness, walking will suffice here. But for anyone who has established a decent base level of cardiorespiratory fitness (the ability of the heart and lungs to deliver oxygen to the working muscles), slightly more intense activities like faster-paced running, swimming or cycling might be needed to see improvements in this area.

As for quantity, Dr Blagrove points to research published in the Journal of Strength and Conditioning Research. This suggests that “endurance performance can be maintained for up to 15 weeks when training frequency is reduced to as little as two sessions per week, or when exercise volume is reduced by a third to two-thirds (as low as 13-26 minutes per session), as long as exercise intensity (exercising heart rate) is maintained”.

In other words, a couple of short sessions each week should be enough to maintain many parameters of cardiorespiratory fitness for most people.

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Summary

After speaking with experts at the top of their respective fields, there were clear takeaways. Fitness and longevity can seem like complex subjects and often, the sheer volume of data and advice can be off-putting for the average person. To avoid overcomplicating things, here are the key points you should be bearing in mind when it comes to your daily and weekly exercise.

  • All movement counts towards better health – just because you don’t have time to walk 10,000 steps per day, run 10k or spend an hour in the gym, that doesn’t negate the impact of any and all activity you are able to do.
  • Incidental movement also counts, whether that’s walking from your car to the office or tidying the house.
  • Walking further is better, walking faster is better, and combining the two is best for your health.
  • The above message applies to most types of exercise: more is usually better, as are higher intensities, but any amount can be beneficial.
  • Walking 8,000 steps per day is optimal if you want to maximise your return on investment (in relation to all-cause mortality).
  • Small increases in daily steps have been linked to improved health, with benefits starting at roughly 4,000 steps a day for all-cause mortality and 2,500 for cardiovascular mortality.
  • Two short (as low as 10 minutes) full-body strength training workouts each week can be enough to trigger impressive results.
  • Two short (13-26-minute) bouts of aerobic activity per week is likely enough to maintain or improve cardiorespiratory fitness in most people.

“My main message is for people to simply pick a sport, exercise or physical activity they enjoy and can consistently adhere to long-term,” Dr Blagrove says.

“There isn’t an exercise type or modality that is ‘best’, or a volume threshold that people should be trying to achieve, like 10,000 steps per day. But doing a small amount of something active most days long-term is better than trying to do excessive amounts short-term then quitting because it feels like a chore.”

Read more: 16 best running shoes for all types of runs, tried and tested by our experts

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Fitness

“Forget living longer, exercise can make life easier right now”—a 72-year-old fitness influencer and marathon runner shares two accessible ways to start moving

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“Forget living longer, exercise can make life easier right now”—a 72-year-old fitness influencer and marathon runner shares two accessible ways to start moving

Retirement is often a time when people slow down, but in Christine Hobson’s case, she’s speeding up. When her daughter persuaded her to join a running club so she wouldn’t get bored, she had no idea she’d get the fitness bug and run 125 marathons in total, visiting all seven continents.

And the 72-year-old former teacher has plans to run the North Pole marathon in 2027.

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Why 21-15-9 Might be the Smartest Workout Format in Fitness – and How to Use it to Drive Muscle Growth

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Why 21-15-9 Might be the Smartest Workout Format in Fitness – and How to Use it to Drive Muscle Growth

CrossFit means a lot of things to a lot of people – because it’s made up of a lot of things.

Since the rise of the fitness giant, countless brands, events and training methods have sprung up around it – not claiming to be CrossFit, but looking suspiciously CrossFit-esque.

There are, however, a handful of things that are uniquely CrossFit: the ‘Girls’ benchmark workouts. The Hero WODs and, of course, its signature rep schemes.

Chief among them is ’21-15-9′.

The 21-15-9 rep scheme may just be the single most CrossFit thing in existence. But what exactly is it? Where did it come from? And why might it actually be better at building muscle in a hurry than its conditioning roots would have you believe?

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Let’s have a look.

What Is 21-15-9?

If you’ve never encountered it before, the format couldn’t be simpler. Choose two exercises (occasionally more) and perform 21 reps of each, then 15 reps of each, then nine reps of each, completing the entire workout as quickly as possible – with good form.

Probably the best-known example is ‘Fran’: 21 thrusters and pull-ups, followed by 15 of each, then nine. On paper it doesn’t look especially intimidating. In practice, it’s one of the most feared benchmark workouts in fitness.

Where Did it Come From?

Unlike many modern training methods, 21-15-9 didn’t come out of a study. It came from the gym floor.

CrossFit founder Greg Glassman has explained that the format emerged through years of coaching and experimentation in the 1990s. Rather than chasing a perfect sets-and-reps prescription, he was looking for a workout that allowed athletes to maintain a high power output from start to finish.

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The thinking is surprisingly elegant. You begin with 21 reps while fresh. By the time you reach the set of 15, your ability to produce force has already fallen. By the final nine, you’re significantly more fatigued – but the workload has dropped by almost the same amount.

Instead of grinding through increasingly miserable sets of the same length, the workout ‘meets you where you are’, reducing the work required as your capacity declines. The result is a workout that encourages you to keep moving instead of standing around trying to recover.

The numbers themselves are also remarkably practical. Forty-five total reps per movement provides plenty of training volume without turning the session into an endurance slog, while every set divides neatly into thirds if you need to break it up.

(Although I’ve got to be honest, I’m a 20-15-10-5 man myself, just for the sake of round numbers.)

Why Does it Work So Well?

Although there isn’t research showing that 21-15-9 is somehow the magic formula, there are obvious reasons why it consistently produces brutally effective workouts.

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Descending reps help maintain intensity. As fatigue accumulates, reducing the target allows movement quality, bar speed and overall work rate to stay higher than they would if you simply repeated the same number of reps over and over.

It also tends to land in a physiological sweet spot. Most 21-15-9 workouts take between three and eight minutes, depending on the movements and the athlete. That’s long enough to create a serious cardiovascular challenge while still requiring meaningful force production throughout. You’re taxing your anaerobic systems hard while relying on your aerobic system to help you recover just enough to keep going.

Finally, there’s the psychological trick. The hardest-looking part comes first. Once you’ve survived the opening 21, every remaining round appears more manageable. ‘Only 15 left.’ Then, ‘Just nine.’ In reality, you’re becoming more fatigued with every rep, but the shrinking target keeps you attacking the workout instead of pacing too conservatively.

Why it Might be Surprisingly Good for Building Muscle

Perhaps the biggest misconception about 21-15-9 is that it’s ‘just cardio with weights’.

Choose the right load and something interesting happens. Very few athletes complete every round unbroken. Instead, the workout naturally evolves into a series of short, broken sets separated by only a few seconds of rest.

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Your 21 might become 11-5-5. Your 15 becomes 8-4-3. Your final nine might stay unbroken – or become 5-4.

In effect, you’ve accidentally turned the workout into a form of rest-pause training.

Those brief pauses allow just enough recovery to squeeze out more high-quality repetitions before fatigue catches up again. By the latter stages of each mini-set, you’re repeatedly working very close to failure, recruiting the high-threshold motor units with the greatest potential for muscle growth.

It’s a similar principle to rest-pause training, myo-reps and cluster sets: all methods used to accumulate hypertrophy-friendly volume while keeping the load relatively heavy and the rest periods brutally short.

You’re basically speed-running a large number of hard, growth-stimulating reps in a very small window of time. Could this help explain why elite CrossFit athletes often carry an impressive amount of muscle despite spending relatively little time performing traditional bodybuilding splits?

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It’s certainly plausible, although the ‘elite’ part often selects for athletes with the greatest muscle-building potential.

Much of their training isn’t simply conditioning. It’s high-density resistance training performed under accumulating fatigue, with only fleeting recovery between efforts. In other words, they’re often doing something bodybuilders have deliberately programmed for decades: packing a lot of hard work into a very short period of time.

That’s not to say 21-15-9 is superior to a well-designed hypertrophy programme. If your sole goal is building muscle, there are more efficient ways to do it.

But if you’re looking for a workout that develops fitness, tests your mettle and still provides a meaningful stimulus for strength and size, it’s easy to see why this deceptively simple rep scheme has remained one of CrossFit’s defining fingerprints for more than 20 years.

Best Bodyweight 21-15-9 Workout: ‘JT’

If you’re looking for an interesting twist on the 21-15-9 format, look no further than Hero WOD ‘JT’, which concentrates the muscle-building potential of the format into a brutal upper-body workout.

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Created in honour of Petty Officer 1st Class Jeff Taylor, who was killed in Afghanistan in 2006, the workout strips away barbells altogether and relies solely on three bodyweight movements:

21-15-9 reps of:

Don’t let the lack of equipment fool you. The volume – 45 reps of each movement, 135 reps in total – combined with the descending rep scheme makes this a brutal upper-body test, hammering the shoulders, chest and triceps while demanding serious muscular endurance.

Better still, it perfectly demonstrates one of the biggest strengths of 21-15-9. As fatigue mounts and the sets naturally fragment, the workout begins to resemble one giant rest-pause set, allowing you to accumulate a huge number of hard, near-failure reps in less than 10 minutes.

If your goal is building an impressive upper body while developing serious work capacity, there are few bodyweight workouts that deliver quite so much bang for your buck, making ‘JT’ one of my personal favourites.

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fitness magazine cover featuring a muscular man with kettlebells

If there’s one thing Kori Sampson knows, it’s how to optimise your body composition for performance. To tap into his knowledge as an elite athlete and coach, we asked him to create a 4-week plan to help you move faster, recover quicker and keep pushing when the fatigue sets in – all while improving your muscle-to-fat ratio.

Ready to build muscle, burn fat and come out the other side looking, feeling and performing better? Click here to get 14 days of free access to the plan via the Men’s Health app.


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10 minutes of swimming might not sound worth it – but I tried it for 2 weeks and found the benefits of a quick dip

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10 minutes of swimming might not sound worth it – but I tried it for 2 weeks and found the benefits of a quick dip

The concept of ‘exercise snacking’ has never been more popular. Not only is it convenient and accessible, but there is solid scientific evidence that short bursts of physical activity can yield real benefits for our health. But can a swimming workout be an effective ‘exercise snack’?

A study published in the European Heart Journal found that just 15 to 20 minutes of vigorous physical activity a week (almost as low as two minutes a day) was enough to significantly lower the risk of heart disease, cancer and early death. The study defined vigorous activity as any exercise that leaves you out of breath and raises your heart rate, including swimming.

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