Phillips, B. E., Kelly, B. M., Lilja, M., Ponce-González, J. G., Brogan, R. J., Morris, D. L., Gustafsson, T., Kraus, W. E., Atherton, P. J., Vollaard, N. B. J., Rooyackers, O., & Timmons, J. A. (2017). A practical and time-efficient high-intensity interval training program modifies cardio-metabolic risk factors in adults with risk factors for type ii diabetes. Frontiers in Endocrinology, 8, Article 229. https://doi.org/10.3389/fendo.2017.00229