Thirty-nine boys and girls about 11 1/2 years old took part in the research. Results show the so-called "exergames" burned energy levels comparable to the moderate or vigorous exercises recommended to keep children fit.
The games were compared to the amount of energy used when the children walked on a treadmill at 3 mph.
Researchers say certain games used up more energy than others, including Nintendo Wii Boxing and Dance Dance Revolution.
