Japanese Walking: The 30 Minute Interval Walk, Explained
Japanese walking is interval walking: 3 minutes fast, 3 minutes slow, repeated 5 times for 30 minutes. It comes from research at Shinshu University in Japan, where middle-aged and older adults who did it at least 4 days a week for 5 months gained more thigh strength and aerobic fitness, and saw a bigger drop in blood pressure, than people who walked at a steady moderate pace. You don't need a lab to do it: fast just means hard enough that talking gets difficult.
It's one of the better viral trends, because the research behind it is real and the workout costs nothing.
What Japanese walking is
| Part | Time | How it feels |
|---|---|---|
| Fast walk | 3 minutes | Hard. You can say a few words, not full sentences |
| Slow walk | 3 minutes | Easy. You could chat the whole way |
| Repeat | 5 rounds | 30 minutes in total |
| How often | At least 4 days a week | What the study asked for |
The researchers called it interval walking training. The name Japanese walking came later, from social media.
The study behind it
The best known trial was published by Nemoto and colleagues in Mayo Clinic Proceedings in 2007. The team at Shinshu University randomly split 246 healthy adults, average age 63, into three groups:
- No walking training.
- Steady walking at a moderate pace, about 50% of their peak aerobic capacity.
- Interval walking: 3 minutes fast at 70% or more of peak aerobic capacity, then 3 minutes slow at about 40%, for at least 5 rounds a day, at least 4 days a week.
After 5 months, the interval group's thigh strength rose about 13% for straightening the knee and 17% for bending it, and their peak aerobic capacity for walking rose about 9%. Their systolic blood pressure fell by about 9 points and diastolic by about 5. Those changes were bigger than in the steady walking group.
Two caveats. These were people who weren't training before, so a modest push made a real difference. And walking, even fast walking, is still not a substitute for lifting if you want to build muscle. As I wrote in what walking does and doesn't do after 40, walking is the best daily habit there is, but it only goes so far for strength.
Why it went viral
In PureGym's UK Fitness Report, Japanese walking topped the list of fitness trends for 2026, with Google searches up 2,968% in July to September 2025 compared with the same months of 2024. Walking yoga was second. The report described a shift back toward lower impact, easy to start exercise.
It's easy to see why. It takes 30 minutes, needs nothing but shoes, is gentler on the joints than running, and has an actual study behind it.
How to judge fast without a lab
The study used lab tests to set each person's pace. You can get close with two simple checks from the CDC's guide to measuring intensity:
- The talk test. On the fast minutes, you should only manage a few words before needing a breath. On the slow minutes, you should be able to talk easily.
- Effort out of 10. Rate how hard it feels, where 0 is sitting and 10 is all out. Aim for about 7 on the fast minutes and 3 or 4 on the slow ones. The CDC puts moderate effort at 5 or 6 and vigorous effort starting at 7 or 8.
To walk faster, take quicker steps and drive your arms rather than stretching your stride. A gentle hill makes the fast minutes harder without needing more speed. A smartwatch or fitness tracker can show your heart rate, but you don't need one.
How to start if you're coming back
Thirty minutes of hard intervals is a lot after a long break. Build up to it over four weeks:
- Week 1: 3 rounds of 2 minutes brisk, 3 minutes slow (15 minutes), 3 days. Brisk, not hard.
- Week 2: 4 rounds of 3 minutes fast, 3 minutes slow (24 minutes), 3 days.
- Week 3: 5 rounds (30 minutes), 3 or 4 days.
- Week 4: 5 rounds, 4 days, and push the fast minutes a little harder.
Walk easy for a few minutes before the first fast round. Use a phone timer that repeats every 3 minutes. If your shins or calves complain, slow the fast minutes down for a week.
A week of Japanese walking plus strength
Japanese walking fits neatly into the days between strength sessions. The study asked for 4 days a week, so add a fourth interval walk after a strength session if you feel fresh.
| Day | Session | How long |
|---|---|---|
| Monday | Full Body A | About 45 minutes |
| Tuesday | Japanese walking | 30 minutes |
| Wednesday | Full Body B | About 45 minutes |
| Thursday | Japanese walking | 30 minutes |
| Friday | Full Body C | About 45 minutes |
| Saturday | Japanese walking, or a longer easy walk | 30 to 45 minutes |
| Sunday | Rest | None |
Full Body A, B and C each cover a squat, a hinge, a push, a pull and a carry or core move, in about 45 minutes. The plan is laid out in full in the 3 day full body workout.
Walk the intervals, add the strength days
Interval walking does a lot for your heart and legs, and three short strength days do what walking can't. Full Body, 3 days is free in Liftspan: it's built for your equipment and around any joint you flag, every weight is set for you and moved up as you earn it, and each block ends with a lighter deload week. Rather use paper? Download the sheet.
Common questions
What is the Japanese walking method?
It's interval walking: 3 minutes of fast walking followed by 3 minutes of slow walking, repeated 5 times for 30 minutes, at least 4 days a week. It's based on interval walking training developed by researchers at Shinshu University in Japan.
Is Japanese walking better than steady walking?
In the 2007 Shinshu University trial, people who did interval walking for 5 months gained more thigh strength and aerobic fitness, and had a bigger drop in blood pressure, than people who walked at a steady moderate pace. Any walking is good. Intervals just ask a little more of you.
How fast is the fast part?
Fast enough that you can only say a few words before taking a breath, or about 7 out of 10 for effort. The slow part should feel easy, about 3 or 4 out of 10.
Can I do Japanese walking on a treadmill?
Yes. Change the speed every 3 minutes, or raise the incline for the fast minutes. Use the same talk test to judge the effort.
Is Japanese walking good for weight loss?
The study measured fitness, thigh strength and blood pressure, not weight loss. Any regular walking burns calories and can help alongside your eating habits, and strength training helps you keep muscle while you lose fat.
Using Liftspan? See how logging a walk keeps your daily flame going in the help manual. New to it? Liftspan is a strength training app for lifters over 40 that builds your plan around your joints and moves the weight for you.
Sources: Nemoto et al. 2007, Effects of high-intensity interval walking training on physical fitness and blood pressure in middle-aged and older people (Mayo Clinic Proceedings) · Shinshu University repository record for the same paper · CDC, How to measure physical activity intensity · PureGym UK Fitness Report 2025/26. General information, not a substitute for a clinician.
Keep reading: does walking build muscle after 40 · the 6-6-6 walking workout · how to start working out again after a long break · all guides