The effect of manipulation of the center of pressure of the foot during gait on the activation patterns of the lower limb musculature

Yulia Goryachev*, Eytan M. Debbi, Amir Haim, Alon Wolf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Therapeutic devices that manipulate the center of pressure (COP) of the foot can induce kinetic and kinematic changes in gait. Appropriate changes in joint moments and muscle activation during gait have been proven to be beneficial for patients with neuromuscular and orthopedic disorders. The purpose of this study was to investigate the effect of different COP positions during gait on the activity of the lower limb musculature of healthy subjects. Methods: A novel foot-worn biomechanical device that allows controlled manipulation of the COP during gait was used. Twelve healthy males underwent EMG analyses of the key muscles of the leg while wearing the device. The trials were carried out at six COP positions relative to neutral configuration: anterior, posterior, medial, lateral, dorsi flexion and plantar flexion. Results: The EMG activity of the lateral gastrocnemius varied significantly with COP during terminal stance (p=0.023) and preswing (p=0.020), the tibialis anterior during load response (p=0.019) and midstance (p=0.004), the biceps femoris during terminal stance (p=0.009) and the vastus lateralis during initial contact (p=0.010). Conclusion: There are significant changes in the muscle activity of the lower limb in response to manipulation of the COP of the foot during gait.

Original languageEnglish
Pages (from-to)333-339
Number of pages7
JournalJournal of Electromyography and Kinesiology
Volume21
Issue number2
DOIs
StatePublished - Apr 2011
Externally publishedYes

Keywords

  • Center of pressure
  • Electromyogram
  • Gait
  • Lower limb

Fingerprint

Dive into the research topics of 'The effect of manipulation of the center of pressure of the foot during gait on the activation patterns of the lower limb musculature'. Together they form a unique fingerprint.

Cite this