What is Japanese walking?
“Japanese walking” is the social media name for interval walking training, developed by researchers at Shinshu University in Japan. One video about it passed 10 million views on TikTok and 17 million on YouTube, according to the Los Angeles Times.
The idea is simple: instead of one steady pace, you switch between easy and fast walking every 3 minutes.
What the study found
In a five-month study published in 2007, 246 adults with an average age of 63 were split into groups. The interval group walked 5 or more sets of 3 minutes slow and 3 minutes fast, on 4 or more days a week. Another group walked at a steady moderate pace, aiming for 8,000 steps.
The interval group gained more thigh strength (13% and 17% on two strength tests) and more fitness (8–9%) than the steady walkers, and had a larger drop in resting systolic blood pressure.
Two honest notes: the study measured strength, fitness and blood pressure, not weight loss. And it was hard to keep up: only 31 of the 68 women in the interval group met their targets.
How fast is “fast”?
Use speech as a practical effort cue: easy walking allows full sentences; harder walking may allow only a few words before a breath. This does not reproduce the study’s measured intensity thresholds (above 70% of each person’s peak walking effort for the fast minutes).
Make it your Walk & Water walk
Japanese walking fits inside a Walk & Water round. Do your interval walk on Tuesday, Wednesday and Thursday, and your steps count toward your team’s board. The study prescribed interval training on at least four days a week; three challenge days plus an easy walk is a different routine.
