International Journal of Physical Medicine & Rehabilitation
Open Access

Bala S Rajaratnam

Publications

• Research Article
  A Comparison of EMG Signals from Surface and Fine-Wire Electrodes During Shoulder Abduction
  Author(s): Bala S Rajaratnam, James CH Goh and V Prem KumarBala S Rajaratnam, James CH Goh and V Prem Kumar
  
  Electromyography quantifies the action of muscles and the data provides an understanding of how coordination occurs during an action. This concurrent comparison research study evaluated electromyography signals from surface and fine-wire electrodes placed simultaneously on selected shoulder muscles. A stand-alone data logger collected electromyography signals from both types of electrodes placed on and within the teres major, supraspinatus, infraspinatus and posterior deltoid muscles as 30 healthy adult subjects performed overhead shoulder abduction. There were poor correlation in the timing of onset and peak magnitudes between fine-wire and surface electrodes reading of teres major, infraspinatus and supraspinatus (onset r=-0.01-0.07; p>0.05, peak r=0.05-0.10; p>0.05). Readings from surface electrodes placed on the posterior deltoid was strongly correlated with.. View More»
  DOI: 10.4172/2329-9096.1000206

  Abstract PDF

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