ABSTRACT
The physiological demands of tennis are well published (see reviews by Kovacs, 2006 and Fernandez et al., 2006) and vary between standard of player (Bernardi et al., 1998), surfaces played on (Hughes and Clarke, 1995) and playing styles/strategies (Hughes and Moore, 1998). In addition to the physically demanding aspects of tennis, another major challenge presented to players is the environment. Heat, and dehydration in particular, present major obstacles to performance (Marks et al., 2004). Dawson et al. (1985) observed that professional tennis players, competing in year-round tournament calendars, participate in a wide variety of climatic conditions from cool and dry conditions to hot and/or humid conditions.
