Abstract
Purpose: This study aimed to examine the effect on spinal nerve function that differences in the motor image method. Methods: We recorded the F-wave during three different methods of MI from previous research as follows. Vision imagery is the method that subjects image the digital digits to display pinch force. Muscle imagery is the method that subjects image the muscle contraction during pinching. Sensory imagery is the method that subjects image the feeling you hold down the pinch sensor. Results: Both persistence and F/M amplitude ratios motor imagery under vision-image, muscle-image and sensory-image significantly higher than that observed at rest. No significant were noted in relative data for amplitude ratio of F/M and persistence between motor imagery that three image way. Conclusion: Motor imagery under three different methods as vision-image or muscle-image and sensory-image was no significant difference in the excitability of spinal neural function between the three MI methods condition. However excitability of spinal neural function during imaging under all conditions tended to be higher during motor imager than at rest.
Highlights
Motor imagery, the mental rehearsal of motor acts without overt movement, has been shown to improve motor performance in healthy subjects [1] and benefit motor function recovery following stroke [2,3]
No significant differences were noted in latency in the three motor imagery conditions (Table 1 and Figures 1 and 4)
We tested the F-wave from the thenar muscles of the non-dominant side during three different methods as vision-image or muscle-image and sensory-image in healthy subjects
Summary
The mental rehearsal of motor acts without overt movement, has been shown to improve motor performance in healthy subjects [1] and benefit motor function recovery following stroke [2,3]. This line stroke with Ryding et al [2], mention the effectiveness of activation of cerebellum during motor imagery against healthy person. The excitability of the cerebral cortex during MI may result from an increase in the MEP amplitude as measured by TMS; spinal neural function has been reported not excited [7]
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