Reliability of energy cost calculations in children with cerebral palsy, cystic fibrosis and healthy controls
2011 (English)In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 100, no 12, 1616-1620 p.Article in journal (Refereed) Published
Aim: To study test-retest reliability of physiological cost index (PCI) and total cost index (TCI) in three groups of children. TCI modified PCI by excluding rest heart rate in calculation.
Methods: Energy cost was evaluated from two consecutive walking tests, and results were compared between methods, tests and groups. Thirty-nine children, eight with cerebral palsy, 11 with cystic fibrosis and 20 healthy controls, aged 5-16 years participated in the study conducted at the Clinical Nutrition and Metabolism laboratory, University Hospital, Uppsala, Sweden. Heart rate was recorded during sitting and walking at self-selected speed. PCI and TCI were calculated using both non-steady-state and steady-state work heart rates. Test-retest reliability was analysed by mean of differences, pooled SD, coefficient of variation (CV%) and correlation coefficients.
Results: Reliability was high for PCI and TCI. TCI showed consistently lower variation between tests than PCI for all groups. In the group with cerebral palsy, using non-steady-state showed highest reliability.
Conclusion: Both PCI and TCI were reliable methods when calculating energy cost in children with cerebral palsy, cystic fibrosis and controls. TCI seemed to be a suitable alternative in the evaluation of gait efficiency in children.
Place, publisher, year, edition, pages
2011. Vol. 100, no 12, 1616-1620 p.
Health Sciences Physiotherapy Neurology
IdentifiersURN: urn:nbn:se:uu:diva-162981DOI: 10.1111/j.1651-2227.2011.02396.xISI: 000296899500027PubMedID: 21726284OAI: oai:DiVA.org:uu-162981DiVA: diva2:462237