Authors:
Gibson N, Johnston K, Bear N, Stick S, Logie K, Hall GL
Authors notes:
International Journal of Obesity. 2013:online
Keywords:
Respiratory limitation, overweight, adolescents, exercise testing
Abstract:
To investigate whether ventilatory factors limit exercise in overweight and obese children during a 6-min step test and to compare ventilatory responses during this test with those of healthy weight children.
Young people who are overweight or obese are more likely to experience expiratory flow limitation (expFL) during submaximal exercise compared with their healthy weight peers.
Subjects who had lower lung volumes at rest were even more likely to experience exercise-induced expFLs.
Both groups displayed similar breathing strategies during submaximal exercise.
Young people who are overweight/obese are more likely to display expFL during submaximal exercise compared with children of healthy weight.
Use of compensatory breathing strategies appeared to enable overweight children to avoid the experience of breathlessness at this intensity of exercise.