Cardiopulmonary Responses of Asthmatic Children to Strenuous Exercise

Chryssanthopoulos, C.; Maksud, M. G.; Gallen, W. G.; Hause, L. L.
July 1984
Clinical Pediatrics;Jul1984, Vol. 23 Issue 7, p384
Academic Journal
The purposes of the study were to investigate the cardiopulmonary adaptations of asthmatic children to physical exercise and to evaluate the effects of theophylline. Two groups of children were evaluated. Eight asthmatic children participated in two exercise sessions. Half of the patients received theophylline in predetermined doses during the first session and half prior to the second session. Seventeen normal children matched for age, height, and weight served as controls. Various cardiortspiratory parameters were measured every 2 minutes during exercise and prior to termination of maximal physical effort. The results indicate that children with chronic asthma reach the range of predicted maximal aerobic capacity for their age. Theophylline increases the endurance of asthmatic children to maximal physical efforts without improving the cardiorespiratory parameters that were measured. The use of theophylline in therapeutic doses appears safe under conditions of vigorous exercise.


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