The overweight and obesity are considered as a risk factor for the heat strain.This study was planned to assess the oral temperature changes among overweight and normal-weight subjects during light and moderate exercises under exposure to hot and very hot conditions.An experimental study was conducted on 35 subjects with normal-weight and 35 subjects who had overweight.The subjects rested for 30 minutes.
Then, each subject performed a light exercise (2.8 kilometers per hour on the Treats Bulk treadmill) under exposure to very hot and moderately humid conditions for 60 minutes.In the next phase, subjects performed a moderate exercise (4.8 kmph on the treadmill) under exposure to hot and moderately humid conditions for 60 minutes after 30 minutes of rest.
The oral Transport Wheel temperature was measured every 4 minutes.The rest oral temperature of overweight subjects with body mass index more than 27kg/m2 was significantly higher than that of normal-weight subjects in both conditions (P.