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Sagittal Joint Kinematics, Moments, and Powers Are Predominantly Characterized by Speed of Progression, Not Age, in Normal Children

Stansfield, Ben W. Ph.D.; Hillman, Susan J. M.Sc.; Hazlewood, M. Elizabeth M.C.S.P.; Lawson, Alastair A. M.Sc.; Mann, Alison M. Ph.D.; Loudon, Ian R. B.Sc.; Robb, James E. F.R.C.S.

Journal of Pediatric Orthopaedics: May-June 2001 - Volume 21 - Issue 3 - p 403-411
Selected Topics

Twenty-six healthy 7-year-old children were enrolled in a 5-year longitudinal study to examine the importance of age and speed in the characterization of sagittal joint angles, moments, and powers. In 740 gait trials, children walking at self-selected speeds were examined on the basis of age and normalized speed [speed/(height ×g)1/2]. The kinematics and kinetics in these children were characterized predominantly by normalized speed of progression and not age. The clinical relevance of these findings is that normalized speed of walking, rather than age, should be considered when comparing normal with pathologic gait.

Study conducted at Princess Margaret Rose Orthopaedic Hospital, Edinburgh, United Kingdom

From the Anderson Gait Analysis Laboratory, Princess Margaret Rose Orthopaedic Hospital, Edinburgh, United Kingdom.

Address correspondence and reprint requests to Mr. J. E. Robb, Princess Margaret Rose Orthopaedic Hospital, Edinburgh EH10 7ED, United Kingdom.

© 2001 Lippincott Williams & Wilkins, Inc.