Groundbreaking interval walking training doubles health benefits

Interval walking training delivers double the health benefits of regular walking

Walking has long been praised as one of the simplest and most effective forms of exercise, but a groundbreaking method called interval walking training (IWT) is redefining its health potential. Researchers say this innovative approach, first developed at Shinshu University in Japan, can provide up to two times more health benefits compared to traditional walking.

What is interval walking training?

Interval walking training involves alternating between three minutes of relaxed walking at about 40 percent effort and three minutes of fast walking at roughly 70 percent effort. A standard session includes five rounds, along with a warm-up and cool-down, lasting around 24 minutes.

During the faster intervals, participants should feel slightly breathless and able to speak only in short phrases, but not so winded that they cannot continue. Correct posture, long strides, and arm movement are key to maximizing the benefits.

Proven health benefits of IWT

Evidence published in the Exercise and Sport Sciences Reviews journal highlights the transformative impact of IWT. Findings from studies involving over 6,400 middle-aged and older adults in Japan, the US, and Denmark showed:

• 10 percent improvement in overall fitness within five months.
• 10 to 15 percent boost in aerobic capacity, equivalent to reversing cardiovascular age by 10 years.
• Lower blood pressure and stronger muscles, reducing fall risk and improving mobility.
• 20 percent reduction in lifestyle disease scores, covering conditions such as obesity, diabetes, and high cholesterol.
• Enhanced mental well-being and reduced loneliness, as many participants performed IWT in groups.

Why interval walking beats steady walking or running

Unlike jogging or stair climbing, IWT is gentle on joints, hips, and knees, making it safe for older adults and those new to exercise. By raising the heart rate in short bursts, IWT delivers superior cardiovascular and metabolic benefits while remaining sustainable and enjoyable.

Notably, around 70 percent of participants maintained IWT for two years, compared to just 30 percent adherence to gym programs — highlighting its accessibility and long-term appeal.

A simple, sustainable path to longevity

Regular walking already lowers the risk of early death, heart disease, and diabetes by up to 30 percent. By adding structured intervals, IWT amplifies these benefits, offering a practical, low-cost, and science-backed exercise routine suitable for all fitness levels.

As Dr. Hiroshi Nose, co-creator of IWT, emphasizes, the technique provides a sustainable way for older adults and beginners to stay healthy, independent, and active well into later life.

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