HIIT Helped 120 Older Adults Cut Fat While Preserving Muscle in 6-Month Study
Updated
Updated · ScienceDaily · Jun 28
HIIT Helped 120 Older Adults Cut Fat While Preserving Muscle in 6-Month Study
2 articles · Updated · ScienceDaily · Jun 28
Summary
A six-month UniSC-led study of more than 120 healthy adults averaging age 72 found high-intensity interval training was the only exercise intensity that reduced body fat without sacrificing lean muscle.
Three weekly gym sessions produced modest fat loss across high-, moderate- and low-intensity groups, but moderate training also caused a small decline in lean muscle.
HIIT likely preserved muscle because repeated hard intervals place greater stress on muscles, sending a stronger signal for the body to retain muscle tissue, researchers said.
The Brisbane-region study, published in Maturitas, adds to evidence that body composition in later life matters because rising fat and falling muscle are linked to chronic disease risk.
HIIT preserves muscle, but is it the best all-around exercise for seniors versus traditional strength training?
Could a new fitness routine surprisingly do more harm than good for those with age-related muscle loss?
Maximizing Healthy Aging in 2026: The Unique Benefits and Challenges of HIIT for Older Adults
Overview
A recent study from the University of the Sunshine Coast, published in June 2026, highlights the unique benefits of High-Intensity Interval Training (HIIT) for healthy aging, especially in older adults. The research shows that HIIT can help improve body composition and overall well-being, making it a valuable guide for exercise plans aimed at seniors. These findings are expected to shape how older adults approach fitness, offering effective ways to enhance health and maintain independence as they age. The study’s insights pave the way for better exercise regimens and healthier lifestyles in the years ahead.