Achten J, et al Fat oxidation rates are greater throughout running compared with cycling over a broad variety of strengths. Br J Sports Med. Int J Sports Med.
Source
Achten J, et al Fat oxidation rates are higher during running compared with cycling over a wide variety of strengths. Hall C et al Energy Expenditure of Walking and Running: Comparison with Prediction Equations. J Sports Sci. Br J Sports Med. Int J Sports Med.