Modulation of plantar pressure and gastrocnemius activity during gait using electrical stimulation of the tibialis anterior in healthy adults

Autor: Mizuki Ueno, Hidemi Fujino, Noriaki Maeshige, Yoshiyuki Yoshikawa, Hiroto Terashi, Maiki Moriguchi
Jazyk: angličtina
Předmět:
Male
Physiology
lcsh:Medicine
Walking
Electromyography
0302 clinical medicine
Animal Cells
Medicine and Health Sciences
lcsh:Science
Musculoskeletal System
Gait
Neurons
Motor Neurons
Multidisciplinary
medicine.diagnostic_test
Physics
Alpha motor neuron
Classical Mechanics
Reciprocal inhibition
Bioassays and Physiological Analysis
medicine.anatomical_structure
Physical Sciences
Cardiology
Legs
Anatomy
Cellular Types
Gait Analysis
Muscle Electrophysiology
Research Article
Adult
medicine.medical_specialty
Surgical and Invasive Medical Procedures
030209 endocrinology & metabolism
Research and Analysis Methods
03 medical and health sciences
Internal medicine
Pressure
medicine
Humans
Functional electrical stimulation
Muscle
Skeletal
Functional Electrical Stimulation
Tibia
Biological Locomotion
business.industry
Forefoot
Limbs (Anatomy)
Electrophysiological Techniques
lcsh:R
Ankles
Biology and Life Sciences
Cell Biology
Electric Stimulation
body regions
Cellular Neuroscience
Gait analysis
lcsh:Q
Feet (Anatomy)
Ankle
business
human activities
030217 neurology & neurosurgery
High Pressure
Neuroscience
Zdroj: PLoS ONE, Vol 13, Iss 5, p e0195309 (2018)
PLoS ONE
ISSN: 1932-6203
Popis: High plantar flexor moment during the stance phase is known to cause high plantar pressure under the forefoot; however, the effects on plantar pressure due to a change of gastrocnemius medialis (GM) activity during gait, have not been investigated to date. Reciprocal inhibition is one of the effects of electrical stimulation (ES), and is the automatic antagonist alpha motor neuron inhibition which is evoked by excitation of the agonist muscle. The aim of this study was to investigate the influences of ES of the tibialis anterior (TA) on plantar pressure and the GM activity during gait in healthy adults. ES was applied to the TAs of twenty healthy male adults for 30 minutes at the level of intensity that causes a full range of dorsiflexion in the ankle (frequency; 50 Hz, on-time; 10 sec, off-time; 10 sec). Subjects walked 10 meters before and after ES, and we measured the peak plantar pressure (PP), pressure time integral (PTI), and gait parameters by using an F-scan system. The percentage of integrated electromyogram (%IEMG), active time, onset time, peak time, and cessation time of TA and GM were calculated. PP and PTI under the forefoot, rear foot, and total plantar surface significantly decreased after the application of ES. Meanwhile, changes of gait parameters were not observed. %IEMG and the active time of both muscles did not change; however, onset time and peak time of GM became significantly delayed. ES application to the TA delayed the timing of onset and peak in the GM, and caused the decrease of plantar pressure during gait. The present results suggest that ES to the TA could become a new method for the control of plantar pressure via modulation of GM activity during gait.
Databáze: OpenAIRE
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