2017 年 17 巻 p. 59-63
Motor imagery provides a learning effect similar to that of actual movement, and is an effective rehabilitation modality. Factors influencing brain activity are thought to include the number of repetitions, the body part moved, muscle strength, range of joint movement, perception of rhythm, and movement complexity. We theorized that a change in motor imagery complexity would also change the excitability of spinal neural function as well as brain activity. Our study of motor imagery complexity showed that the excitability of spinal neural function is increased. On the other hand, it is difficult to understand the content of motor imagery. Motor imagery ability is a factor that influences the effect of therapy. Motor imagery ability is assessed by the validity and reliability of vividness. We evaluated the influence of motor imagery ability on the excitability of spinal neural function. The results of the group with low motor imagery ability showed that the excitability of the spinal neural function is increased.