Gait & Posture
Volume 31, Issue 4 , Pages 537-539 , April 2010

Energy cost of walking: A comparison of two recognised methods for defining steady state in a group of unimpaired children and children with cerebral palsy

  • Frank Plasschaert

      Affiliations

    • Ghent Gait Laboratory, University Hospital, Ghent, Belgium
    • Department of Orthopaedic Surgery, University Hospital, Ghent, Belgium
    • Corresponding Author InformationCorresponding author at: Department of Orthopaedics and Traumatology, University Hospital Gent, De Pintelaan 185, 9000 Gent, Belgium. Tel.: +32 93322680; fax: +32 93325856.
    • ,
  • Kim Jones

      Affiliations

    • Ghent Gait Laboratory, University Hospital, Ghent, Belgium
    • ,
  • Malcolm Forward

      Affiliations

    • Ghent Gait Laboratory, University Hospital, Ghent, Belgium
    • Institute Biomedical Technology, Faculty of Engineering, University of Ghent, Belgium

Received 16 January 2009 ,Revised 26 January 2010 ,Accepted 31 January 2010.

References 

  1. Astrand PO, Rodhal K. Textbook of work physiology: physiological basis of exercise. New York: McGraw Hill; 1986;
  2. Bowen T, Cooley SR, Castagno P, Miller F, Richards J. A method for normalisation of oxygen cost and consumption in normal children while walking. Journal of Pediatric Orthopedics. 1998;18:589–593
  3. Baker R, Hausch A, McDowell B. Reducing the variability of oxygen consumption measurements. Gait & Posture. 2001;13:202–209
  4. Brehm M, Knol D, Harlaar J. Methodological considerations for improving the reproducibility of walking efficiency outcomes in clinical gait studies. Gait & Posture. 2008;27:196–201
  5. Plasschaert F, Jones K, Forward M. Energy cost of walking: solving the paradox of steady state in the presence of variable walking speed. Gait & Posture. 2009;29(2):311–316
  6. Schwartz M. Protocol changes can improve the reliability of net oxygen cost data. Gait & Posture. 2007;26:494–500
  7. Garby L, Astrup A. The relationship between the respiratory quotient and the energy equivalent of oxygen during simultaneous glucose and lipid oxidation and lipogenesis. Acta Physiologica Scandinavica. 1987;129(3):443–444
  8. Bland JM, Altman DG. Comparing methods of measurement: why plotting difference against standard method is misleading. The Lancet. 1995;346(issue 8982 (2)):1085–1087
  9. Brubaker PH. Study design and analysis: do not be statistically cenophobic: time to roc and roll!. Journal of Cardiopulmonary Rehabilitation & Prevention. 2008;28(6):420–421

PII: S0966-6362(10)00040-8

doi: 10.1016/j.gaitpost.2010.01.024

Gait & Posture
Volume 31, Issue 4 , Pages 537-539 , April 2010

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