- 著者
 
          - 
             
             Yuki Fukumoto
             
             Yoshibumi Bunno
             
             Toshiaki Suzuki
             
          
 
          
          
          - 出版者
 
          - The Society of Physical Therapy Science
 
          
          
          - 雑誌
 
          - Journal of Physical Therapy Science (ISSN:09155287)
 
          
          
          - 巻号頁・発行日
 
          - vol.28, no.12, pp.3416-3420, 2016 (Released:2016-12-27)
 
          
          
          - 参考文献数
 
          - 11
 
          
          
          - 被引用文献数
 
          - 
             
             4
             
             
             6
             
             
          
        
 
        
        
        [Purpose] This study aimed to examine the effect of motor imagery on the accuracy of          motion and the excitability of spinal neural function. [Subjects and Methods] Thirty          healthy volunteers (males, 15; females, 15; mean age, 20.3 ± 1.0 years) were recruited.          F-waves was recorded at rest, while holding a sensor, and while using motor imagery. Next,          subjects learned 50% maximum voluntary contraction. The pinch force was measured without          visual feedback before and after motor imagery. F-waves were analyzed with respect to          persistence and the F/M amplitude ratio. Correction time and coefficient of variation were          calculated from the pinch force. [Results] Persistence and F/M amplitude ratio ware          significantly higher in the holding sensor and motor imagery conditions than in the          resting condition. In addition, persistence under motor imagery was significantly higher          than that in the holding sensor condition. No significant differences were observed in          relative values of correction time and coefficient of variation between the two pinch          action conditions. The pinch force in task 2 approximated a more authentic 50%MVC than          that in task 1. [Conclusion] Motor imagery increases the excitability of spinal neural          function, suggesting that it also affects accurate control of muscle force.