A Japanese walking technique is going viral for challenging the long-standing belief that 10,000 steps a day is the key to fitness. Known as Japanese interval walking, the method alternates three minutes of brisk walking with three minutes of slow walking, repeated over 30 minutes—and it’s delivering impressive results.
Dr. Kristian Karstoft of the University of Copenhagen explains the brisk intervals should be fast enough to make speaking in full sentences difficult, while the slow intervals allow full recovery. He says the method provides benefits similar to running, without the joint strain, making it ideal for older adults. Fitter individuals can intensify the brisk parts into jogs or runs.
Backed by over 20 years of research in Japan, studies show this method improves aerobic capacity, lowers blood pressure, strengthens joints, and helps manage blood sugar in people with type 2 diabetes. Participants saw a 15–20% fitness boost and lost 3–5 kilos, mostly from body fat, over a few months.
Experts say it’s simple, effective, and requires no gym—just alternating your walking pace for half an hour.
