Slow Walking as Exercise: What the Research Says About Pace and Results

Slow walking has drawn renewed attention as a low-impact fitness option that almost anyone can start without equipment or training. The idea behind it is simple: walking at a gentle, conversational pace for a sustained period, rather than pushing for speed or distance.

What counts as a 'slow' pace

The NHS defines a brisk walk as roughly 3 miles an hour — faster than a stroll — and suggests a practical check: if you can still talk but not sing while walking, you are at a moderate intensity. Walking slower than this threshold, closer to a leisurely stroll, is generally what is meant by 'slow walking.'

A controlled trial of postmenopausal women, archived on the US National Institutes of Health's PubMed Central database (PMC8840715), used 5.5 km/h (about 3.4 mph) as its 'slow' pace and 6.6 km/h (about 4.1 mph) as 'fast.' This shows that the exact speed labelled 'slow' varies between sources — there is no single universal number.

What the studies actually found

In the postmenopausal-women trial, participants walked 4.8 km per session, four days a week, with energy expenditure matched at about 300 kcal per session regardless of speed. At the slow pace, sessions lasted 54 minutes; at the fast pace, 45 minutes. Slow walkers lost 4.2% of total body fat by week 15 and 7.5% by week 30, while fast walkers initially gained 1.24% of body fat before losing 2.75% by week 30. Both groups reduced waist circumference by roughly 3% over 30 weeks, meaning visceral fat loss tracked total calories burned rather than pace itself.

A separate study led by Dr. Wei Zheng of Vanderbilt University Medical Center, published in the American Journal of Preventive Medicine and covered by BBC Science Focus, followed nearly 80,000 adults across 12 southeastern US states for a median of 16.7 years. It found that just 15 minutes of fast walking a day was linked to a nearly 20% reduction in total mortality, while slow walking for more than three hours a day was linked to only a 4% reduction. The benefit was most pronounced for cardiovascular deaths and held up after adjusting for diet, smoking and alcohol use.

A 2023 review titled 'The multifaceted benefits of walking for healthy aging: from Blue Zones to molecular mechanisms,' archived on PubMed Central (PMC10643563), reported that walking pace was a stronger predictor of health outcomes than total walking volume. It cited data showing a brisk pace was linked to 38% (men) and 53% (women) lower cardiovascular mortality compared with a slow pace, and that each 1 km/h increase in walking speed was linked to a 13% lower stroke risk. The same review noted that walking at a cadence of 100 or more steps per minute was linked to a 21% lower all-cause mortality risk, with each additional 10 steps per minute adding a further 4% reduction.

Building a slow-walking routine

1. Set the pace using the talk test: you should be able to hold a full conversation without getting short of breath, per NHS guidance.
2. Aim for longer sessions than a brisk walk would need — the postmenopausal-women trial used roughly 45–55 minutes per session to match calorie burn across paces.
3. Repeat several times a week; the fat-loss trial used four sessions weekly over 15–30 weeks before measuring results.
4. Track daily steps as a backup metric — the walking-and-aging review linked 8,000–10,000 steps a day to lower cardiovascular disease, diabetes and dementia risk, and found benefits from as few as 6,000 steps a day in adults over 60.
5. If the goal is lowering mortality risk rather than fat loss, add short bouts of brisk walking: the Vanderbilt study found 15 minutes of faster walking daily had a larger mortality benefit than hours of slow walking.
6. Treat slow walking as joint-friendly cross-training alongside, not necessarily instead of, brisk activity recommended by national guidelines.

Why slow walking is getting attention now

British actress and presenter Miranda Hart has publicly described slowing her walking pace while recovering from a long-term illness. In an interview reported by Woman & Home, Hart credited walking and spending time outdoors with aiding her recovery. Her comments, alongside the studies above, have fed wider public interest in slow walking as an accessible routine rather than a replacement for more vigorous exercise.

Taken together, the available research points to a routine, not a single 'magic pace': slow walking suits fat-loss goals, joint-friendly movement and consistency for beginners, while brisk walking shows a clearer, larger link to reduced mortality risk in the studies reviewed here.