Key points
- Japanese walking is interval walking: 3 minutes at a fast pace, then 3 minutes slow, repeated five times or more, on at least four days a week.
- The fitness gains are real. In a Japanese trial, leg strength, walking fitness and blood pressure improved more than with steady walking.
- The weight effect is modest. A session burns about what a steady walk at the same average pace burns; food does most of the work on the scale.
- “Fast” means your own fast, judged by your breathing: you can still speak in short phrases. It is never a race.
- Start from a walking base. Begin with short, gentle rounds once you have walked regularly for about four weeks.
- Talk to your doctor first, and ask about fast intervals in particular if you have a heart condition, AFib or diabetes treated with insulin.
Japanese walking for weight loss: the short answer
Japanese walking can support weight loss, but its strongest effects are on fitness, leg strength and blood pressure, not on the scale. Most of the weight change still comes from what you eat.
The method comes from research on interval walking training. People alternate 3 minutes of fast walking, at 70 % or more of their peak walking capacity, with 3 minutes of slow walking at about 40 %. They repeat this at least five times a session, on four or more days a week.
In the original trial of 246 people in their early sixties, this pattern improved thigh strength and walking fitness more than steady walking did. Systolic blood pressure, the top number, also fell further.
The appeal for weight loss is indirect. Stronger legs and a fitter heart make longer daily walks easier, and that extra movement adds up over months. If you have not yet built a walking habit, start with our guide to walking for weight loss and come back after about four weeks.
For the scale itself, a modest daily shortfall in energy from food matters most. The calorie deficit calculator shows a realistic range for your body, and a simple eating plan turns that into meals.
What is Japanese walking (interval walking training)?
Japanese walking is the popular name for interval walking training, a home-based programme developed by Hiroshi Nose, Shizue Masuki and colleagues at Shinshu University in Matsumoto, Japan. It was designed for middle-aged and older people who wanted to get fitter without a gym.
The researchers wanted a training plan that older people could follow near home with little staff support, because programmes that people keep up for years were hard to find. Short spells of faster walking, broken up by slow recovery, raised the effort without any equipment.
In their studies, people wore a small activity monitor, and staff checked the data and gave feedback. You do not need that to try the pattern; a simple timer and your own breathing are enough.
What “fast” and “slow” feel like
“Fast” in Japanese walking should feel somewhat hard. You breathe deeply and quickly, and you can speak in short phrases, but not hold a relaxed chat.
“Slow” is an easy stroll. Your breathing settles, and you could talk in full sentences by the end of the 3 minutes.
The researchers measured each person’s capacity in a lab. At home, the talk test does the same job without any numbers. Our heart rate zones calculator explains how that speaking check lines up with your pulse, if you want to compare.
| Part of the round | How it feels | Talking | Effort on a 0–10 scale |
|---|---|---|---|
| Slow, 3 minutes | Easy, relaxed, breathing calms down | Full sentences | About 3 |
| Fast, 3 minutes | Somewhat hard, warm, breathing deep and quick | Short phrases only | About 6 to 7 |
| Too hard | Gasping, strain, unable to keep going | One or two words | 8 or more: slow down |
What the trials show about interval walking
The trials show clear gains in fitness and leg strength, smaller improvements in weight and body fat, and an open question about how many people keep it up. Most studies were done in Japan with healthy older adults, not specifically in people living with obesity.
The original trial: interval vs steady walking
In the first randomised trial, 246 adults with an average age of 63 were split into three groups for five months: no training, steady walking at a moderate pace, or interval walking. The steady group aimed for at least 8,000 steps a day; the interval group aimed for five or more rounds of 3 + 3 minutes.
In the interval group, knee extension strength rose by 13 % and knee flexion strength by 17 %. Peak capacity for walking went up by 9 %. All of these gains were larger than in the steady group, and resting systolic blood pressure dropped more too.
One detail is easy to miss. Fewer people in the interval group reached their weekly targets: about half, against roughly two out of three in the steady group. The harder pattern brought more benefit, but it was also harder to stick to.
Larger follow-up and other groups
A later study followed more than 800 people aged around 65 for four months; 666 had full measurements before and after. Weight, body fat, blood pressure and blood glucose all fell, and the least fit people improved most. There was no comparison group, so this shows change over time, not proof that intervals caused it.
A small Danish trial tested the same 3-minute pattern in 32 people with type 2 diabetes, who walked an hour, five times a week, for four months. Compared with steady walking that used the same energy, the interval group improved fitness by 16 % and lost about 4 kg on average.
The interval walkers also lost body fat, including deep fat around the organs. In the steady group, fitness, weight and body fat did not change.
That trial was small, the weekly volume was high, and food was not controlled. For how movement affects blood sugar more broadly, see the exercise section of our page on insulin resistance.
| Study | Who took part | What they did | Main result | Type of study |
|---|---|---|---|---|
| Nemoto and colleagues, Mayo Clinic Proceedings | 246 adults, average age 63 | 5 months: interval, steady or no walking | More leg strength, walking fitness and fall in blood pressure with intervals; fewer met their targets | Randomised trial |
| Morikawa and colleagues, British Journal of Sports Medicine | 666 adults, around 65 | 4 months of interval walking | Weight, body fat, blood pressure and glucose lower; biggest change in the least fit | Before-and-after study, no control group |
| Karstoft and colleagues, Diabetes Care | 32 adults with type 2 diabetes | 4 months, 5 hours a week | Better fitness and blood sugar, about 4 kg lost, with intervals only | Small randomised trial |
| Martyanti and colleagues, PLoS One | 234 women after menopause | 5 months of interval walking | Small rise in bone density in women who started with lower bone density | Study without control group |
A recent review by researchers from both the Japanese and Danish groups sums it up. Interval walking improves fitness, muscle strength and risk factors for lifestyle-related disease, but keeping it up over the long term is a challenge, especially for people with overweight or obesity.
Does Japanese walking help you lose weight? An honest answer
Japanese walking helps with weight loss mainly by making you fitter, so you can walk longer and more often. The energy used in a single session is about the same as a steady walk at the same average speed.
The fast minutes use more energy than an easy pace, but the slow minutes use less. Over a full session the two roughly balance out, unless your fast pace is very quick.
The table below gives rough figures for 30 minutes of walking at three body weights. The values come from the latest Compendium of Physical Activities, which lists the energy cost of walking at different speeds; the interval rows are our own average of a slow and a faster pace.
| 30 minutes of walking | MET | 100 kg | 125 kg | 150 kg |
|---|---|---|---|---|
| Slow, level (about 3.2–3.9 km/h) | 2.8 | about 145 kcal | about 185 kcal | about 220 kcal |
| Ordinary, moderate pace (about 4.5–5.5 km/h) | 3.8 | about 200 kcal | about 250 kcal | about 300 kcal |
| Brisk, for exercise (about 5.6–6.3 km/h) | 4.8 | about 250 kcal | about 315 kcal | about 380 kcal |
| Japanese walking: slow 3 min + brisk 3 min | about 3.8 on average | about 200 kcal | about 250 kcal | about 300 kcal |
| Japanese walking: slow 3 min + very brisk 3 min (6.4–7.1 km/h) | about 4.2 on average | about 220 kcal | about 270 kcal | about 325 kcal |
These numbers are estimates. They include the energy you would use at rest anyway, and they may run a little high for people with more body fat. For your own weight and minutes, try the calories burned calculator.
Where the real gain lies
The bigger benefit is what the fitness makes possible. When climbing a hill or walking for 40 minutes stops leaving you exhausted, it becomes easier to move more every day, and that is what shows up over a year.
Stronger thighs also help with getting up from a chair, climbing stairs and staying steady on your feet. Those changes matter at any weight, and many people notice them within weeks, long before the scale moves.
There is one trap to watch for. A harder session can make you hungrier, and a snack eaten as a “reward” can easily cancel out the extra energy. Plan a filling meal or a protein-rich snack instead, as described further down.
Japanese walking vs ordinary walking and step goals
Japanese walking is not better than ordinary walking for everyone; it is a way to add effort once a steady walk feels easy. Steady walking stays the base of an active week, and the method you will keep doing is the best one.
People often ask whether it beats a daily step goal such as 10,000 steps. The two have not been compared head to head, and they answer different questions: steps measure how much you move, intervals change how hard some of those minutes are. What step research really shows is covered on our walking page.
The same goes for interval training in general. Across many studies, intervals and steady cardio lead to similar fat loss when they use similar energy; our page on cardio for weight loss compares both in detail.
| Walking style | What you do | Best for | Read more |
|---|---|---|---|
| Steady walking | One even pace for the whole walk | Building the habit, adding minutes and steps | Our walking guide (link above) |
| Japanese walking | 3 minutes fast, 3 minutes slow, repeated | More fitness and leg strength once walking feels easy | This page |
| Nordic walking | Walking with two poles that push you along | Using the arms too and feeling steadier on paths | Nordic walking |
| Tai chi walking | Slow, controlled steps with attention to balance | Balance, calm and confidence on your feet | Tai chi walking |
| Walking with a vest | Ordinary walking with extra weight on the body | Lighter people looking for more load | Weighted vest |
You can also mix styles in one week. Many people keep two or three steady walks and add Japanese walking on the other days.
Japanese walking in a larger body: make “fast” your own fast
In a larger body, “fast” simply means faster than your usual pace, at the effort the talk test describes. For some people that is a brisk 6 km an hour; for others it is a slightly quicker stroll, and both count.
Carrying more weight means your heart and legs work harder at any speed. So you will reach the somewhat-hard feeling sooner, which is exactly the training effect you want. There is no need to match anyone else’s pace.
A gentler version for the first weeks
- Shorter fast spells: start with 1 minute faster and 2 minutes easy, and lengthen the fast part only when it feels comfortable.
- A flat route: hills turn a fast spell into a very hard one; save them for later.
- Short loops near home: a loop of a few hundred metres lets you stop and rest whenever you need to.
- Quicker steps, not longer ones: speed comes most easily from a faster rhythm with your usual step length.
- A bench in view: knowing where you can sit takes away the worry of running out of energy.
If your knees ache during the fast minutes, keep the pace you can manage without limping and read our page on exercise with bad knees. For a sore hip, hip pain and weight loss has walking tips and strengthening moves.
Feeling out of breath during the fast part is normal. If breathlessness is your main worry, or it takes long to settle, see shortness of breath and obesity before you go further.
Talk to your doctor first: who should check before faster walking
Talk to your doctor first before you start Japanese walking, even if you already walk every day. Fast intervals push your heart rate and blood pressure up more than a steady stroll does.
A check is especially important if any of the following applies to you:
- you have heart disease, chest pain or tightness on effort, or palpitations;
- you have atrial fibrillation or another rhythm problem: ask your doctor directly whether fast intervals are safe for you, and read AFib and weight loss;
- your blood pressure is high and not yet under control;
- you use insulin or other diabetes medicines that can make your blood sugar drop too low;
- you have lung disease, or you often feel dizzy or have fallen recently;
- you recently had surgery, or you have a joint that swells or locks.
Your doctor may suggest starting with steady walking for longer, keeping the fast spells gentle, or joining a supervised programme first. That advice comes before anything on this page.
Stop at once and get urgent medical help if you feel chest pain or pressure, become dizzy or faint, get severely out of breath, or notice a racing or very irregular heartbeat. Do not walk on to finish the round.
Low blood sugar can feel like shakiness, sweating or sudden hunger. If you use medicines that can cause it, ask your care team how to plan walks around meals and doses.
How to do Japanese walking, step by step
A full session of Japanese walking takes about 40 minutes: a warm-up, five rounds of 3 minutes fast and 3 minutes slow, and an easy finish. You can build up to it over several weeks with the plan further down.
- Warm up for about 5 minutes. Walk at an easy pace and let your breathing and joints settle in. Our warm-up and stretching guide adds a few gentle moves.
- Walk fast for 3 minutes. Pick up the pace until you can only speak in short phrases. Swing your arms a little more and take quicker steps.
- Walk slowly for 3 minutes. Drop back to an easy stroll and let your breathing recover fully.
- Repeat. Do five rounds of fast and slow in total, or fewer in your first weeks.
- Finish slowly. End with a few minutes of easy walking, and stretch your calves and thighs gently if that feels good.
Keeping time without fuss
A simple countdown timer on your phone, set to repeat every 3 minutes, is all you need. You can also use landmarks: fast to the corner, slow to the bridge, once you know how long each stretch takes.
The talk test matters more than the clock. If you cannot speak at all during the fast spell, ease off a little; if you could chat easily, push a touch harder.
Rainy days and indoor options
On a treadmill you can set the speed for each block; our page on a gym workout for weight loss explains how to use one safely. For one-minute bursts spread through a busy day, see our guide to exercise snacks.
Food for weight loss around your walks: protein for stronger legs
What you eat around your walks matters more for weight loss than the walks themselves, and a little protein afterwards may help your legs get stronger. Choose everyday foods rather than powders or shakes.
One small study looked at this directly. Thirty-seven women in their sixties, who had already done interval walking for more than six months, were split into three groups for five months. Those who had a milk-based snack with about 12 g of protein after walking gained about 8 % in thigh strength; those with no snack lost about 2 %.
It was a pilot trial with a small number of active women, so treat it as a hint, not proof. It fits the wider advice that enough protein helps you keep muscle while you lose weight.
Simple protein ideas after a walk
- Plain Greek-style yogurt, 150 g: about 15 g of protein and 90 kcal (nonfat).
- Low-fat cottage cheese, 100 g: about 12 g of protein and 70 kcal.
- A glass of low-fat milk, 250 ml: about 8 g of protein and 105 kcal.
- Two boiled eggs: about 12 g of protein and 155 kcal.
The values are approximate, from the USDA food composition database. Protein keeps you full for longer, which helps you avoid reaching for biscuits after a hard session.
If you would rather plan this as part of your meals than as an extra snack, fit it into lunch or dinner. Our page on dairy for weight loss compares yogurts, cheeses and milks, and the free eating plan builds protein into every day.
An 8-week plan: from your walking base to Japanese walking
Talk to your doctor first. This plan is for people who have walked regularly for about four weeks and can manage 20 minutes at an easy pace; if that is not you yet, follow the 12-week walking plan first.
Each session starts with 5 minutes easy and ends with a few minutes slow. On the other days, keep your ordinary walks, so the intervals add to your week instead of replacing it.
| Week | Rounds | Fast / slow minutes | Days a week | Food step |
|---|---|---|---|---|
| 1 | 3 | 1 / 2 | 2 | Water instead of a sugary drink with meals |
| 2 | 3 | 1 / 2 | 3 | A portion of protein at breakfast |
| 3 | 4 | 2 / 2 | 3 | Half your dinner plate vegetables |
| 4 | 4 | 2 / 3 | 3 | A planned protein snack after walks |
| 5 | 5 | 2 / 3 | 3 | Smaller portions of fried and fatty foods |
| 6 | 4 | 3 / 3 | 3 | Fruit or yogurt instead of a sweet snack |
| 7 | 5 | 3 / 3 | 3 to 4 | Whole grains for one daily white starch |
| 8 | 5 | 3 / 3 | 4 | Review the week and keep what worked |
Making the plan work
- Repeat a week whenever the next one feels too much, or your legs are still sore two days later.
- Leave a day between interval sessions at first; do steady walks or rest in between.
- Change one thing at a time: more rounds, longer fast spells or an extra day, never all at once.
- Keep a short log of rounds, how the fast minutes felt and how you slept, so you can see progress.
Over the months, aim for a weekly total of 150 to 300 minutes of moderate activity, the range the WHO guidelines give for adults. Faster minutes count towards that, and so do your steady walks.
Keeping it going: heat, rain and losing the habit
The hardest part of Japanese walking is not the fast minutes but keeping it up for months. Even the researchers behind the method call long-term adherence a challenge.
Weather plays a part. In a Japanese trial with young women, those who trained in a hot summer walked only about two days a week during the holidays, half as often as a winter group, and their fitness fell instead of rising.
So plan around the seasons. On hot days, walk early in the morning or in the evening, choose shade and take water. In rain or ice, use an indoor option or switch to steady walking for a while.
Support helps
Simple support may also help. In a small Danish pilot in people with type 2 diabetes, personal goals, a short weekly check-in by text message and a phone call when sessions kept being missed went with more interval minutes over 12 weeks. The difference was uncertain, so treat it as a promising idea rather than a proven result.
A walking partner works in a similar way. Our page has ideas for walking with others, from a neighbour to a local group.
Variety keeps it fresh too. Swap one session for Nordic walking or tai chi walking now and then, and come back to the intervals when you feel like it.
If you miss a week or two, do not start over from week 1. Go back one or two weeks in the plan and build up again from there.
Free help to lose weight with good food and walking
At Obesity Foundation we help people lose weight and get healthier with good food, suitable exercise and walking. Faster walking can be part of that once your body is ready, and all our help is free.
- Your own eating plan, with filling meals and protein on walking days. Ask for your free eating plan.
- Exercise videos at the Start, Build and Strong levels, for stronger legs and a steadier walk. Get the free workout videos.
- A free video meeting (in English) to plan how intervals fit your week and your health. Book a free video meeting.
- A Club account to log your walks, rounds and progress at no cost. Join the Obesity Foundation Club.
Once your doctor agrees, your first session can be three gentle rounds of one minute a little faster and two minutes easy. That is enough to begin.
Frequently asked questions
Does Japanese walking burn more fat than normal walking?
Not much more in a single session: the fast minutes use more energy and the slow minutes less, so it burns about what a steady walk at the same average speed burns. One small trial in type 2 diabetes found more fat loss with intervals than with steady walking of equal energy, but larger studies still need to confirm it.
How many minutes of Japanese walking a day do I need to lose weight?
The studies used about 30 minutes of intervals, five rounds of 3 + 3 minutes, on at least four days a week. That is a goal to build up to, not a starting point. For weight loss, your total weekly movement and your food matter more than the exact number of rounds.
Can I do Japanese walking if I am very overweight?
Often yes, once you can walk about 20 minutes comfortably and your doctor agrees. Make the fast part your own fast, start with 1 minute faster and 2 minutes easy, and use a flat route with places to rest. If your joints or breathing protest, stay with steady walking a while longer.
Is Japanese walking better than 10,000 steps?
They have not been compared directly, and they measure different things. A step goal tracks how much you move in a day, while Japanese walking changes how hard some of those minutes are. Many people combine both: steady walks for the steps and a few interval sessions a week for fitness.
Can I do Japanese walking on a treadmill?
Yes. Set an easy speed for the slow minutes and a faster one for the fast minutes, and change it every 3 minutes. Start the belt slowly, hold the rail lightly when you change speed, and use the talk test rather than the number on the display.
How fast is “fast” in Japanese walking?
Fast is a pace that feels somewhat hard: your breathing is deep and quick and you can only speak in short phrases. There is no fixed speed. In a larger body that point may come at a gentle pace, and that still gives your heart and legs the training effect.
Sources
- Nemoto K, Gen-no H, Masuki S, Okazaki K, Nose H – Effects of high-intensity interval walking training on physical fitness and blood pressure in middle-aged and older people, Mayo Clinic Proceedings (2007)
- Morikawa M, Okazaki K, Masuki S et al. – Physical fitness and indices of lifestyle-related diseases before and after interval walking training in middle-aged and older males and females, British Journal of Sports Medicine (2011)
- Masuki S, Morikawa M, Nose H – Interval walking training can increase physical fitness in middle-aged and older people, Exercise and Sport Sciences Reviews (2017)
- Karstoft K, Winding K, Knudsen SH et al. – The effects of free-living interval-walking training on glycemic control, body composition, and physical fitness in type 2 diabetic patients: a randomized, controlled trial, Diabetes Care (2013)
- Karstoft K, Thorsen IK, Nielsen JS et al. – Health benefits of interval walking training, Applied Physiology, Nutrition, and Metabolism (2024)
- Martyanti RN, Morikawa M, Hanaoka M et al. – Increased response of postmenopausal bone to interval walking training depends on baseline bone mineral density, PLoS One (2024)
- Masuki S, Nishida K, Hashimoto S et al. – Effects of milk product intake on thigh muscle strength and NFKB gene methylation during home-based interval walking training in older women: a randomized, controlled pilot study, PLoS One (2017)
- Tanabe A, Masuki S, Nemoto KI, Nose H – Seasonal influence on adherence to and effects of an interval walking training program on sedentary female college students in Japan, International Journal of Biometeorology (2018)
- Valentiner LS, Thorsen IK, Kongstad MB et al. – Effect of ecological momentary assessment, goal-setting and personalized phone-calls on adherence to interval walking training among patients with type 2 diabetes: a pilot randomized controlled trial, PLoS One (2019)
- Herrmann SD, Willis EA, Ainsworth BE et al. – 2024 Adult Compendium of Physical Activities: a third update of the energy costs of human activities, Journal of Sport and Health Science (2024)
- Bull FC et al. – World Health Organization 2020 guidelines on physical activity and sedentary behaviour, British Journal of Sports Medicine (2020)
- USDA Agricultural Research Service – National Nutrient Database for Standard Reference, Legacy Release (FoodData Central SR Legacy, 2019)
