Aerobic capacity and cardio-pulmonary responses to exercise in healthy South Indian children

Swaminathan, S and Vijayan, V K and Venkatesan, P and Kuppurao, K V (1997) Aerobic capacity and cardio-pulmonary responses to exercise in healthy South Indian children. Indian Pediatrics, 34 (2). pp. 112-118. ISSN Print: 0019-6061; Online:0974-7559

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Abstract

Objective: To examine the cardiorespiratory response to exercise in healthy South Indian school children. Design: Prospective study. Setting: Cardiopulmo nary Medicine Unit, Tuberculosi s Research Center, Ma dras. Subjects: Data was obtained on 47 girls an d 48 boys in the age group 7 to 14 years. Intervention: The children performed a graded maximal exercise stress test on a compute rized treadmill system. Results: Maximum oxygen consumption (VO2max) increased significa ntly at 11 years of a ge in both sexes b ut while boys sho wed a progressive increase beyond 11 years, girls did not. When corrected for weight , only boys at 14 years had a significant increase in VO2max/kg. Boys had higher values of VO2max/kg than girls at all ages. Minute venti lation and oxygen pulse values also increased in both sexes at 11 to 12 year s. The VO2max of South Indian children was lower than the predicte d values available for North American children w hen prediction equations based on height were used. However, when regression equations based on weight were used, the predicted values for North American and South Indian boys were similar, though values for the Indian girls were still low. Nutri tional and sociocul tural factors may play a role in determining VO2max of children from different pop ulations, rather than ethnic differences alone. significa ntly at 11 years of a ge in both sexes b ut while boys sho wed a progressive increase beyond 11 years, girls did not. When corrected for weight , only boys at 14 years had a significant increase in VO2max/kg. Boys had higher values of VO2max/kg than girls at all ages. Minute venti lation and oxygen pulse values also increased in both sexes at 11 to 12 year s. The VO2max of South Indian children was lower than the predicte d values available for North American children w hen prediction equations based on height were used. However, when regression equations based on weight were used, the predicted values for North American and South Indian boys were similar, though values for the Indian girls were still low. Conclusions: Nutri tional and sociocul tural factors may play a role in determining VO2max of children from different populations, rather than ethnic differences alone.

Item Type:	Article
Uncontrolled Keywords:	Exercise testing; Cardiopulmonary response; Aerobic capacity
Subjects:	Tuberculosis > Clinical Research
Divisions:	Clinical Research
Depositing User:	Dr. Rathinasabapati R
Date Deposited:	29 Oct 2013 09:44
Last Modified:	14 Mar 2016 04:53
URI:	http://eprints.nirt.res.in/id/eprint/448

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