A single 75-minute session of brisk interval walking each week may help reduce body fat and improve fitness almost as effectively as exercising three times weekly, according to a new study from the University of Hong Kong (HKUMed). Body fat was measured using dual-energy X-ray absorptiometry (DXA) scans at the start, after 16 weeks, and again at 32 weeks. The results showed that both exercise groups experienced similar reductions in total body fat, body fat percentage, and waist circumference. Rather than insisting on frequent exercise sessions, a single weekly interval-walking workout may offer a realistic and effective alternative for managing central obesity. ; Once and thrice weekly interval training in adults with central obesity: a randomized controlled trial.