Using a Cocontraction Ratio to Predict Antagonistic Behavior During   Elbow Motion
  Inverse dynamics methods for muscle forces prediction are globally unable to predict antagonistic activity during a joint motion. This is due to a lack of physiological information describing how forces are shared between flexors and extensors. The aim of this study is the definition and the use of a new EMG-based cocontraction ratio in an inverse dynamics muscle forces prediction approach applied to the elbow flexion motion. Results show the relevance of the ratio. 
Charles Pontonnier (SMI, INRIA - IRISA), Georges Dumont (INRIA -   IRISA)
physics.med-ph