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Rectal temperature responses during rehydration. a No fluid was greater than intravenous (P = .02). b No fluid was greater than oral, intravenous, and intravenous + oral fluids (P ≤ .009) but not ad libitum (P = .07). Overall, independent of trial, rectal temperature was less than after exercise dehydration at all subsequent time points (P < .001).
