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Mean values ± standard error of Rectal temperature (°C) determined during 19 days of pregnancy for sedentary rats (PS), rats exercised during pregnancy (PE) and trained rats exercised before and during pregnancy (PT), prior to and post-immersion or swimming (80% of maximal work load supported) into water at temperatures of 28°C; 35°C or 39°C. (n = 7 for each group)
