Inability to match energy intake with energy expenditure at sustained near-maximal rates of energy expenditure in older men during a 14-d cycling expedition.

Am J Clin Nutr. 2015;102:1398-405

Rosenkilde M, Morville T, Andersen PR, Kjær K, Rasmusen H, Holst JJ, Dela F, Westerterp K, Sjödin A, Helge JW