TY - JOUR T1 - Heat injuries in Canadian mass participation runs JF - Canadian Medical Association Journal JO - CMAJ SP - 1141 LP - 1142 VL - 122 IS - 10 AU - R. L. Hughson AU - H. J. Green AU - M. E. Houston AU - J. A. Thomson AU - D. R. MacLean AU - J. R. Sutton Y1 - 1980/05/24 UR - http://www.cmaj.ca/content/122/10/1141.abstract N2 - In two Canadian runs with a total of approximately 2900 participants 26 people collapsed with heat injury and were taken to hospital. All were relatively young (13 to 38 years old). A retrospective survey showed that all were novices to 10-km races and that many had collapsed even though they had consumed fluids before and during the run. A review of etiologic factors suggested that the extremes in the Canadian climate, which preclude heat acclimatization in the spring and early summer, may be an important influence on the incidence of heat injury. ER -