This week the Journal of Physiology published a CrossTalk-series with the topic: High intensity interval training does have a role in risk reduction or treatment of disease.
Traditionally the effect of exercise training and physical activity on risk of diseases and on their treatment has been studied mostly at low to moderate exercise intensities. However, during the last 15 years a growing body of evidence has suggested that exercise at high intensity may be superior low to moderate intensities in terms of treatment effects of such diseases and risk reduction. Ulrik Wisløff and Øivind Rognmo from K.G. Jebsen Center of Exercise in Medicine, together with Jeff Coombes from University of Queensland, argue for the use of high intensity exercise in this respect. You can read the CrossTalk at http://onlinelibrary.wiley.com/doi/10.1113/JP271041/abstract