High-intensity training versus traditional exercise interventions for promoting health - Nybo, L.; Sundstrup, E.; Jakobsen, M. D.; Mohr, M.; Hornstrup, T.; Simonsen, L.; Bülow, J.; Randers, M. B.; Nielsen, J. J.; Aagaard, P.; Krustrup, P. (Medicine & Science in Sports & Exercise, 2010)