A number of studies have clearly shown that the ability of both man and horses to
perform a standardised exercise test in hot humid conditions is reduced compared to
that in hot dry or cool conditions (see reviews by Maughan and Lindinger, 1995; Lindinger
and Marlin, 1995). In man it is clear that a period of acclimation or acclimatisation
is beneficial. A search of the literature prior to 1995 indicates no published information
relating to the acclimation or acclimatisation of the horse to hot or hot humid environmental
conditions. Concerns for the appropriate preparation for and welfare of horses at
the 1996 Atlanta Olympic Games prompted a notable increase in studies relating to
equine thermoregulation, and four studies describing acclimation or acclimatisation
responses.
Key words
Horse - exercise - heat - humidity - climate
