Analysis of electromyographic activity of ankle muscles on stable and unstable surfaces with eyes open and closed

Summary Introduction Proprioceptive exercises are performed on a daily basis in physiotherapy with the use of different unstable platforms in order to improve joint stability using the mechanical and sensory properties of ligaments, joint capsule and integrated activity of the muscles surrounding th...

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Bibliographic Details
Published in:Journal of bodywork and movement therapies 2011-10, Vol.15 (4), p.496-501
Main Authors: Braun Ferreira, Luiz Alfredo, MSc, Pereira, Wagner Menna, MSc, Rossi, Luciano Pavan, MSc, Kerpers, Ivo Ilvan, MSc, Rodrigues de Paula, Alderico, PhD, Oliveira, Claudia Santos, PhD
Format: Article
Language:English
Subjects:
Ankle
Ankle - physiology
Electromyography
Female
Humans
Leg - physiology
Male
Muscle Contraction - physiology
Muscle, Skeletal - physiology
Physical Medicine and Rehabilitation
Postural Balance
Proprioception
Proprioception - physiology
Young Adult
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Summary:Summary Introduction Proprioceptive exercises are performed on a daily basis in physiotherapy with the use of different unstable platforms in order to improve joint stability using the mechanical and sensory properties of ligaments, joint capsule and integrated activity of the muscles surrounding the joint. Changes in the myoelectrical characteristics of the muscles during activity can be identified using surface electromyography (EMG), which provides important information on the behavior of muscles submitted to different types of load. Objectives The aim of the present study was to analyze the electromyographic activity of the tibialis anterior, tibialis posterior, peroneus longus, gastrocnemius lateralis and gastrocnemius medialis on stable and unstable surfaces with eyes open and closed. Methodology Twenty-five active, healthy, male and female individuals were submitted to an anthropometric evaluation and a protocol involving warm up and the electromyographic assessment of muscle activity on different surfaces. The order of the data collection was chosen randomly by lots [on stable ground or unstable platforms (trampoline, balance platform, proprioceptive disk and proprioceptive board) with eyes open and on a trampoline, balance platform and stable ground with eyes closed]. The individuals remained balanced on these surfaces for 15 s with the knee at 30° flexion in order to provide greater instability. Results There was a significant increase ( p  
ISSN:1360-8592
1532-9283
DOI:10.1016/j.jbmt.2010.09.003