The Validation of Souques' Finger Phenomenon-And Electromyographic Manifestation of Facilitation Procedure

An investigation was made to evaluate the effect of the affected shoulder joint position on the electromyographic activity of the ipsilateral hand muscle when the patient with hemiplegia attempted to do voluntary dorsiflexion of the hand. Two pairs of surface electrodes were placed on the bellies of the hand extensors and the hand flexors. The integrated electrical activity of the hand extensors and hand flexors were recorded on two-channel EMG machine. All the subjects were placed in the supine position with the affected side at the edge of the bed. The examiner manipulated the affected shoulder joint to different shoulder angles (flexion 130 degrees/flexion 90 degrees/extension 20 degrees), then the examiner asked the patient to perform dorsiflexion of the affected hand. Each attempt was repeated four times at each of the different shoulder positions. Only the last three repetitions were recorded and analyzed. Three dependent variables were used as indicators of the presence of the influence of shoulder position. They were: 1) the integrated electromyographic activity of the hand extensors; 2) the integrated electromyographic activity of hand flexors; and 3) the ratio of Aagonist EMG/Antagonist EMG. The final analysis of the data indicated a significant difference existed between the mean electromyographic activity of the agonists (hand extensors) at 130 degree of shoulder flexion and 20 degrees of shoulder extension. No significant difference was found among the three treatment groups for the hand flexors. The third analysis, the ratio of Agonist EMG/Anfagonist EMG' revealed a significant difference between 130 degrees of shoulder flexion and2 0 degrees of shoulder extension.

並列關鍵字

CVA ； facilitation technique ； EMG

國際替代計量

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