After weight loss on a very-low-energy diet, premenopausal obese women were randomized to a walking-training programme and followed for two years to assess weight maintenance and metabolic risk factors.
Citation: Fogelholm M, Kukkonen-Harjula K, Nenonen A, Pasanen M. Effects of walking training on weight maintenance after a very-low-energy diet in premenopausal obese women: a randomized controlled trial. Archives of Internal Medicine 2000.

