University of Florida at Gainsville researchers have found that exerise in cold water boosts appetite as compared to resting or exercise in warm water.
For her study, published in February in the International Journal of Sport Nutrition and Exercise Metabolism, White tracked the energy used by 11 UF students as they rode a stationary bicycle submerged in water for 45 minutes. The students exercised in cold water of 68 degrees Fahrenheit and warm water of 91.4 degrees Fahrenheit. The same students, ages 21 to 31, also spent 45 minutes resting.
The study found the students used a similar amount of energy during the exercises, 517 calories in the cold water and 505 in the warm water. Students expended 123 calories while resting.
After each exercise session and the rest period, the students were allowed into a room to measure their blood pressure and heart rates. They were left to rest for one hour in the same room and had free access to a standard assortment of food of known caloric values. However, the students didn't know their caloric intake was going to be measured.
"We found that during the recovery period when the subjects had access to an assortment of foods that significantly more calories were eaten after exercise in cold water compared to exercise in warm water or at rest," White said.
Caloric intake after exercise in cold water was 44 percent higher than exercise in warm water and 41 percent higher than in the resting periods. The students consumed a mean 877 calories after exercise in cold water, 608 calories after exercise in warm water and 618 after resting periods.
Water exercise appeals to obese people people because water reduces the strain on joints. But exercise in cold water may make weight problems even worse.
|Share |||Randall Parker, 2005 May 09 02:20 PM Brain Appetite|