Physiological, metabolic, and performance implications of a prolonged hill walk: influence of energy intake

Ainslie, P.N.; Campbell, I.T.; Frayn, K.N.; Humphreys, S.M.; MacLaren, D.P.M.; Reilly, T.

Journal of Applied Physiology 94(3): 1075-1083

2003

https://eurekamag.com/research/003/884/003884211.php