Abstract • The exercise performance of 170 black boys and girls, 7 to 14 years of age, was evaluated on a mechanically braked bicycle ergometer. The protocol is simple to perform in the hospital or in the field with normal children or children with heart or pulmonary disease. The results of the physical working capacity at a heart rate of 170 beats per minute (PWC170), a submaximal workload, are comparable to values previously recorded in California children. For a given body surface area, boys and girls younger than 10 years of age had similar PWC170, but boys 11 years and older had a greater capacity than girls of similar age or body surface area. There was a significant correlation between PWC170 and total work performed for boys (r =.81) and girls (r =.69). (Am J Dis Child 132:244-248, 1978) References 1. Godfrey S: Physiological response to exercise in children with lung or heart disease . Arch Dis Child 45:534-538, 1970.Crossref 2. Halloran KH: The telemetered exercise electrocardiogram in congenital aortic stenosis . Pediatrics 47:31-39, 1971. 3. Hugeholtz PG, Nadas AS: Exercise studies in patients with congenital heart disease . Pediatrics 32:769-775, 1963. 4. Goldberg SJ, Weiss R, Kaplan E, et al: Comparison of work required by normal children and those with congenital heart disease to participate in childhood activities . J Pediatr 69:56-60, 1966.Crossref 5. Kramer J, Lurie P: Maximal exercise tests in children . Am J Dis Child 108:283-297, 1964. 6. Goldberg S: Exercise in cardiac patients , in Moss A, Adams FH (eds): Heart Disease in Infants, Children and Adolescents . Baltimore, Williams & Wilkins Co, 1968, pp 270-281. 7. Eggleston PA: The cycloergometer as a system for studying exercise induced asthma . Pediatrics 56( (suppl 2) ):899-903, 1975. 8. Geubelle F, Ernould C, Jovanovic M: Working capacity and physical training in asthmatic children at 1800m altitude . Acta Paediatr Scand 217( (suppl) ):93-98, 1971.Crossref 9. Adams FH, Linde LM, Myake H: The physical working capacity of normal school children: I. California . Pediatrics 28:55-64, 1961. 10. Adams FH, Bengtsson E, Berven H, et al: The physical working capacity of normal school children: II. Swedish city and country . Pediatrics 28:243-257, 1961. 11. Åstrand, Per-Olaf: Physical fitness in adolescence . Clin Pediatr 6:234-239, 1967.Crossref 12. Cumming GR, Danzinger R: Bicycle ergometer studies in children: II. Correlation of pulse rate with oxygen consumption . Pediatrics 32:202-208, 1963. 13. Bengtsson E: The working capacity in normal children, evaluated by submaximal exercise on the bicycle ergometer and compared with adults . Acta Medica Scand 154:91-109, 1955.Crossref 14. Epstein SE, Beiser GD, Goldstein RE, et al: Hemodynamic abnormalities in response to mild and intense upright exercise following operative correction of an atrial septal defect or tetralogy of Fallot . Circulation 47:1065-1075, 1973.Crossref 15. Nelson WE: Textbook of Pediatrics , ed 9. Philadelphia, WB Saunders Co, 1969, p 236. 16. Bruce RA, Hornsten TR: Exercise testing in evaluation of patients with ischemic heart disease . Prog Cardiovasc Dis 11:371-390, 1969.Crossref 17. Klint F, Voight GB: Investigations on the standardization of ergometry in children . Acta Paediatr Scand 217( (suppl) ):35-36, 1971. 18. Åstrand PO: Ergometry: Work tests with the bicycle ergometer . Monark Handbook , Varbarg, Sweden, Monark-Crescent, p 13. 19. Mocellin R, Lindemann H, Rutenfranz J, et al: Determination of W170 and maximal oxygen uptake in children by different methods . Acta Paediatr Scand 217( (suppl) ):13-17, 1971.Crossref 20. Åstrand PO: Definitions, testing procedures, accuracy and reproducibility . Acta Paediatr Scand 217( (suppl) ):9-12, 1971.Crossref 21. Shulman I: The blood and blood forming organs , in Barnett HL (ed): Pediatrics . New York, Appleton-Century-Crofts Inc, 1968, p 1124. 22. Shephard RJ, Allen C, Benade AJS, et al: The maximum oxygen intake: An international reference standard of cardiorespiratory fitness . Bull WHO 388:18-19, 1968. 23. Taylor HL, Buskirk E, Henschel A: Maximal oxygen intake as an objective measure of cardiorespiratory performance . J Appl Physiol 8:73-80, 1955.
American Journal of Diseases of Children – American Medical Association
Published: Mar 1, 1978