Slentz CA, Houmard JA, Johnson JL, et al. Inactivity, exercise training and detraining, and plasma lipoproteins. STRRIDE: a randomized, controlled study of exercise intensity and amount. J of Applied Physiol 2007; 103(2): 432-42.
Fan W, Waizenegger W, Lin CS, et al. PPARdelta promotes running endurance by preserving glucose. Cell Metab 2017; 25(5): 1186-93: e4.