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Aerobic and lung performance in premature children with and without chronic lung disease of prematurity
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 99515
Author(s) Kriemler, Susi; Keller, Heidemarie; Saigal, Saroj; Bar-Or, Oded
Author(s) at UniBasel Kriemler, Susi
Year 2005
Title Aerobic and lung performance in premature children with and without chronic lung disease of prematurity
Journal Clinical journal of sport medicine
Volume 15
Number 5
Pages / Article-Number 349-55
Keywords low birthweight, exercise capacity, pulmonary function, exercise-induced bronchoconstriction, prematurity
Abstract

OBJECTIVE: This study intended to identify pulmonary and exercise-related effects of chronic lung disease of infancy (CLD) versus prematurity (PRE) without CLD in children 5 to 7 years old who were born prematurely (24-30 weeks of gestation) with very low and extremely low birthweight of 500 to 1500 g (VLBW, ELBW). SUBJECTS: Seventeen CLD and 14 PRE were compared with 24 term controls (CON). The premature children had no overt manifestations of a neuromuscular disease. METHODS: Pulmonary function at rest and following exercise, and aerobic exercise performance were measured. RESULTS: Peak [latin capital V with dot above]O2 and maximal aerobic power were not different among the groups, but O2 uptake at a given mechanical power was higher in the CLD than in PRE and in CON (P < 0.05). At rest, forced vital capacity was significantly lower in CLD than in PRE (P < 0.05) and CON (P < 0.0005), and FEV1 and FEF25-75 were lower in CLD than CON (P < 0.0005 and P < 0.005, respectively). Exercise-induced bronchoconstriction (EIB) was more prevalent among the 2 premature groups (P < 0.05). CONCLUSIONS: Our children 5 to 7 years old born at VLBW or ELBW, with or without CLD, have some degree of pulmonary dysfunction at rest and following exercise and a higher prevalence of EIB with no reduction in maximal aerobic exercise performance. The findings suggest that the pulmonary limitations are associated with low birthweight even in the absence of CLD. The higher O2 uptake at a given mechanical power in the CLD group may cause early fatigability during prolonged exercise, even when aerobic performance is normal.

Publisher Lippincott Williams & Wilkins
ISSN/ISBN 1050-642X
edoc-URL http://edoc.unibas.ch/dok/A5252131
Full Text on edoc No
Digital Object Identifier DOI 10.1097/01.jsm.0000180023.44889.dd
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/16162994
ISI-Number WOS:000232672300011
Document type (ISI) Journal Article
 
   

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