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The clinical relevance of selecting resting data at different points in an energy cost of walking test in cerebral palsy

Frank Plasschaert UGent, Kim Jones and Malcolm Forward UGent (2011) DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY. 53(3). p.245-249
abstract
AIM Energy cost of walking (ECOW) is defined as 'walking oxygen consumption minus resting oxygen consumption divided by speed', where 'resting' data can be obtained either at the start or cessation of a test. This study aimed to ascertain when resting data should be taken during an ECOW test in children with cerebral palsy (CP). METHOD Resting oxygen consumption per unit mass (VO2) and heart rate were recorded in children without physical impairment (18 males, 13 females; mean age 11y [SD 2y 1mo]) and children with diplegic CP (18 males, 13 females; mean age 11y [SD 2y 6mo, Gross Motor Function Classification System levels I and II]) at three stages, namely pre- and posttest sitting and pretest standing before and after an 8-minute ECOW test using the Cosmed K4b. RESULTS Heart rate and VO2 differed significantly between groups and stages (p <= 0.05) except for heart rate in standing and posttest sitting in the unimpaired children and for VO2 during pretest sitting between groups. These differences impacted on the calculation of non-dimensional net oxygen cost (NDNOC) and physiological cost index (PCI) in CP but not in the unimpaired group. PCI was correlated with NDNOC in CP but not in the unimpaired cohort. INTERPRETATION Pretest sitting resting data appear to be the most appropriate for use in the calculation of NDNOC and PCI. PCI may still have relevance in pathology where walking efficiency is compromised.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
EXPENDITURE, OXYGEN
journal title
DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY
Dev. Med. Child Neurol.
volume
53
issue
3
pages
245 - 249
Web of Science type
Article
Web of Science id
000286941600014
JCR category
PEDIATRICS
JCR impact factor
2.918 (2011)
JCR rank
14/113 (2011)
JCR quartile
1 (2011)
ISSN
0012-1622
DOI
10.1111/j.1469-8749.2010.03829.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1191678
handle
http://hdl.handle.net/1854/LU-1191678
date created
2011-03-18 10:52:19
date last changed
2016-12-19 15:38:17
@article{1191678,
  abstract     = {AIM Energy cost of walking (ECOW) is defined as 'walking oxygen consumption minus resting oxygen consumption divided by speed', where 'resting' data can be obtained either at the start or cessation of a test. This study aimed to ascertain when resting data should be taken during an ECOW test in children with cerebral palsy (CP).
METHOD Resting oxygen consumption per unit mass (VO2) and heart rate were recorded in children without physical impairment (18 males, 13 females; mean age 11y [SD 2y 1mo]) and children with diplegic CP (18 males, 13 females; mean age 11y [SD 2y 6mo, Gross Motor Function Classification System levels I and II]) at three stages, namely pre- and posttest sitting and pretest standing before and after an 8-minute ECOW test using the Cosmed K4b.
RESULTS Heart rate and VO2 differed significantly between groups and stages (p {\textlangle}= 0.05) except for heart rate in standing and posttest sitting in the unimpaired children and for VO2 during pretest sitting between groups. These differences impacted on the calculation of non-dimensional net oxygen cost (NDNOC) and physiological cost index (PCI) in CP but not in the unimpaired group. PCI was correlated with NDNOC in CP but not in the unimpaired cohort.
INTERPRETATION Pretest sitting resting data appear to be the most appropriate for use in the calculation of NDNOC and PCI. PCI may still have relevance in pathology where walking efficiency is compromised.},
  author       = {Plasschaert, Frank and Jones, Kim and Forward, Malcolm},
  issn         = {0012-1622},
  journal      = {DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY},
  keyword      = {EXPENDITURE,OXYGEN},
  language     = {eng},
  number       = {3},
  pages        = {245--249},
  title        = {The clinical relevance of selecting resting data at different points in an energy cost of walking test in cerebral palsy},
  url          = {http://dx.doi.org/10.1111/j.1469-8749.2010.03829.x},
  volume       = {53},
  year         = {2011},
}

Chicago
Plasschaert, Frank, Kim Jones, and Malcolm Forward. 2011. “The Clinical Relevance of Selecting Resting Data at Different Points in an Energy Cost of Walking Test in Cerebral Palsy.” Developmental Medicine and Child Neurology 53 (3): 245–249.
APA
Plasschaert, Frank, Jones, K., & Forward, M. (2011). The clinical relevance of selecting resting data at different points in an energy cost of walking test in cerebral palsy. DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY, 53(3), 245–249.
Vancouver
1.
Plasschaert F, Jones K, Forward M. The clinical relevance of selecting resting data at different points in an energy cost of walking test in cerebral palsy. DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY. 2011;53(3):245–9.
MLA
Plasschaert, Frank, Kim Jones, and Malcolm Forward. “The Clinical Relevance of Selecting Resting Data at Different Points in an Energy Cost of Walking Test in Cerebral Palsy.” DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY 53.3 (2011): 245–249. Print.