Does walking speed influence the time pattern of muscle activation in normal children?

Developmental Medicine and Child Neurology
C DetrembleurL Plaghki

Abstract

Dynamic electromyography (EMG) of the extrinsic muscles of the ankle is used more and more frequently to assist in the planning of tendon transfers in children with equinovarus deformities. Since these children walk at low speeds (1 to 4km/h), and since walking speed modifies the EMG-time pattern, the clinical investigator must be able to differentiate EMG modifications due to pathology versus those due to slow walking speed. The aim of this work was to study the effect of walking speed on the EMG-time pattern of the extrinsic ankle muscles in healthy children between 4 and 11 years of age. This pattern was found to change significantly with speed of progression but is independent of growth over this age range. A nomograph of EMG timing, taking into account walking speed, is proposed for clinical gait analysis.

References

Nov 1, 1976·The Journal of Physiology·G A CavagnaA Zamboni
Jul 1, 1975·Journal of Applied Physiology·G A Cavagna
Jun 1, 1985·Electroencephalography and Clinical Neurophysiology·J F Yang, D A Winter
Jan 1, 1987·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·R ShiaviJ Chen
Nov 1, 1986·Journal of Pediatric Orthopedics·R Norlin, P Odenrick
Jan 1, 1984·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·M P MurrayS B Sepic
Nov 1, 1984·Journal of Pediatric Orthopedics·J R GageS Tashman
Jan 1, 1983·IEEE Transactions on Bio-medical Engineering·R Shiavi, P Griffin

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