Influence of hydration on physiological function and performance during trail running in the heat - Casa, D. J.; Stearns, R. L.; Lopez, R. M.; Ganio, M. S.; McDermott, B. P.; Walker Yeargin, S.; Yamamoto, L. M.; Mazerolle, S. M.; Roti, M. W.; Armstrong, L. E.; Maresh, C. M. (Journal of Athletic Training, 2010)