Cardiopulmonary Exercise Testing in Young Asthmatic Children Ages 6-10 Years Old
The aim of this study was to establish the feasibility of a minute incremental exercise testing protocol in young asthma children. Twenty-two children with clinically diagnosed mild to moderate asthma volunteered to participate. The maximum incremental exercise test was performed using a cycle ergometer with an electromagnetic braking. A warm-up unloaded for 2 minutes then the workload was started at 40 watts for 2 minutes, and then stepwise increments of 8 watts per 2 minutes were applied. The pedaling frequency was set at 50 rpm. Ventilation and gas exchange were measured with a breath-by-breath automatic metabolic measurement system. Results showed that this test was well tolerated by all asthmatic children. Most of the children reached the VO2 plateau and satisfied the criteria for maximal respiratory exchange ratio of ≥ 1. This Study demonstrated that this testing protocol was suitable for young asthmatic children.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1082917Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1358
 D. M. Lang, A. M. Butz, A. K. Duggan, and J. R. Serwint, "Physical activity in urban school-aged children with asthma", Pediatrics, 113(4), 2004, pp. e341-346.
 P. T. Pianosi, and H. S. Davis, "Determinants of physical fitness in children with asthma", Pediatrics, 113(3 Pt 1), 2004, pp. e225-229.
 F. P. Counil, A. Varray, S. Matecki, A. Beurey, P. Marchal, M. Voisin, and C. Prefaut, "Training of aerobic and anaerobic fitness in children with asthma",Journal of Pediatrics, 142(2), 2003, pp. 179-184.
 I. Matsumoto, H. Araki, K. Tsuda, H. Odajima, S. Nishima, Y. Higaki, H. Tanaka, M. Tanaka, and M. Shindo, "Effects of swimming training on aerobic capacity and exercise induced bronchoconstriction in children with bronchial asthma", Thorax, 54(3), 1999, pp. 196-201.
 N. H. van Veldhoven, A. Vermeer, J. M. Bogaard, M. G. Hessels, L. Wijnroks, V. T. Colland, and E. EM. van Essen-Zandvliet, "Children with asthma and physical exercise: effects of an exercise programme", Clinical Rehabilitation, 15(4), 2001, pp. 360-370.
 T. W. Rowland, and A. Boyajian, "Aerobic response to endurance exercise training in children", Pediatrics, 96(4 Pt 1), 1995, pp. 654-658.
 C. Karila, J. de Blic, S. Waernessyckle, M. R. Benoist, and P. Scheinmann, "Cardiopulmonary exercise testing in children: an individualized protocol for workload increase", Chest, 120(1), 2001, pp. 81-87.
 J. A. Neder, L. E. Nery, A. C. Silva, A. L. Cabral, and A. L. Fernandes, "Short-term effects of aerobic training in the clinical management of aerobic training in the clinical management of moderate to severe asthma in children", Thorax, 54(3), 1999, pp.202-206.
 T. Rowland, D. Goff, L. Martel, and L. Ferrone, "Influence of cardiac functional capacity on gender differences in maximal oxygen uptake in children", Chest, 117(3), 2000, pp.629-635.
 L.Welsh, J. G. Kemp, and R. G. Roberts, "Effects of physical conditioning on children and adolescents with asthma", Sports Medicine, 35(2), 2005, pp. 127-141.
 M. R. Sears, J. M. Greene, A. R. Willan, E. M. Wiecek, D. R. Taylor, E. M. Flannery, J. O. Cowan, G. P. Herbison, P. A. Silva, and R. Poulton, "A longitudinal, population-based, cohort study of childhood asthma followed to adulthood", New England Journal of Medicine, 349(15), 2003, pp. 1414-1422.
 J. E. McLaughlin, G. A. King, E. T. Howley, D. R. Jr. Bassett, and B. E. Ainsworth, "Validation of the COSMED K4 b2 portable metabolic system", International Journal of Sports Medicine, 22(4), 2001, 280-284.
 J. R. Welsman, and N. Armstrong, "The measurement and interpretation of aerobic fitness in children: current issues", Journal of the Royal Society of Medicine, 89(5), 1996, pp. 281-285.
 J. Myers, and D. Bellin, "Ramp exercise protocols for clinical and cardiopulmonary exercise training", Sports Medicine, 30(1), 2000, pp. 23-29.
 M. J. Buchfuhrer, J. E. Hansen, T. E. Robinson, D. Y. Sue, K. Wasserman, and B. J. Whipp, "Optimizing the exercise protocol for cardiopulmonary assessment", Journal of Applied Physiolgy, 55(5), 1983, pp. 1558-1564.
 N. Armstrong, J. Welsman, and R. Winsley, "Is peak VO2 a maximal index of children's aerobic fitness?", International Journal of Sports Medicine, 17(5), 1996, pp. 356-359.
 N. Armstrong, B. J. Kirby, A. M. McManus, and J. R. Welsman, "Aerobic fitness of prepubescent children", Annals of Hum Biology, 22(5), 1995, pp. 427-441.
 N. Armstrong, J. Williams, J. Balding, P. Gentle, and B. Kirby, "The peak oxygen uptake of British children with reference to age, sex and sexual maturity'', European Journal of Applied Physiology and Occupational Physiology, 62(5), 1991, pp. 369-375.
 T. W. Rowland, N. Lee, and D. Cunningham, "Development of ventilatory responses to exercise in normal white children'', Chest, 111(2), 1997, 327-332.
 K. Wasserman, J. E. Hansen, and D. Y. Sue, "Principles of exercise testing & interpretation: including pathophysiology and clinical applications (3rd ed ed.)''. Philadelphia, PA: Lippincott Williams & Wilki, 1997.