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ObjectiveTo observe the effect of motor imagery therapy on hand function and motor imagery ability of stroke patients. MethodsFrom March, 2018 to March, 2020, 41 stroke patients in Beijing Bo'ai Hospital were selected and randomly divided into control group (n = 20) and observation group (n = 21). Both groups received conventional rehabilitation training, and the observation group received motor imagery therapy in addition, for four weeks. Before and after training, the scores of Fugl-Meyer Assessment-Hand (FMA-H) and Kinesthetic and Visual Imagery Questionnaire-10 (KVIQ-10), and the accuracy of mental rotation task were compared between two groups. ResultsOne patient in the observation group dropped down. Before training, there was no significant difference in the scores of FMA-H and KVIQ, and the accuracy of mental rotation task between two groups (P > 0.05). After training, all the indexes improved in both groups (t > 6.611, P < 0.001), and the scores of FMA-H (t = 3.742, P < 0.001) and KVIQ (t = 4.122, P < 0.001), and the accuracy of mental rotation task (t = 2.075, P < 0.05) were higher in the observation group than in the control group. ConclusionMotor imagery therapy could facilliate the recovery of hand dysfunction and improve the motor imagery ability of stroke patients.
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Objective To investigate the short-term and long-term effect of motor imagery training on visual imagery and kinesthetic imagery of athletes.Methods Twenty athletes majoring in the sports training of Capital University of Physical Education were selected into the experimental group,while 20 counterparts majoring in the human kinetic science were selected into the control group.All subjects received motor imagery training,and were assessed their visual imagery and kinesthetic imagery at three before the training,as well as ten minutes and 48 hours after the training.Results The repetitive measurement and analysis of variance showed that the visual imagery and kinesthetic imagery scores had the main effect of time factor [FvI (2,37)=7.57,P＜0.01;FK1 (2,37)=ll.75,P＜0.01)],as the scores were the highest at ten minutes after training,the second highest at 48 hours after training and the lowest before training.The visual imaginary scores increased significantly after the training,but had no significant difference 48 hours after the training compared to that before the training.After the training the kinesthetic imagery scores increased significantly and then declined slowly,and there were significant differences in the score before and 48 hours after the training (P=0.009).The experimental group and the control group had the same change trend in the visual and kinesthetic imagery scores.The average scores of the former group were higher than the latter at the same time points but without significant differences.The visual and kinesthetic imagery scores had no main effect of group factor,and there was no interaction effect of time factor and group factor.Conclusion Motor imagery training could increase the ability of visual and kinesthetic imagery of people never participating in motor imagery training and the short-term effect was more obvious.The long term effect of motor imagery training was more significant on kinesthetic imagery than visual imagery.
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Objective To develop kinesthetic and visual imagery questionnaires applicable to Chinese stroke survivors and evaluate their test-retest reliability,inter-rater reliability and internal consistency.Methods The English version of a kinesthetic and visual imagery questionnaire (KVIQ) was translated into Chinese using wellaccepted questionnaire translation procedures.Thirty stroke survivors were each assessed twice using two versions of the translation (the KVIQ-20 and the KVIQ-10) by two experienced raters with an interval of 7 days between the tests.The test-retest reliability,inter-rater reliability and internal consistency of the visual imagery score (visual imagery subscale),the kinesthetic imagery score (kinesthetic imagery subscale) and the total scores for the KVIQ-20 and KVIQ-10 versions were analyzed.Results The test-retest coefficients,the inter-rater reliability correlation coefficients and Cronbach's alphas for the KVIQ-20 version ranged from 0.879 to 0.945,from 0.894 to 0.936 and from 0.867 to 0.919,respectively.The corresponding measurements for the KVIQ-10 vcrsion were 0.914 to 0.953,0.852 to 0.900 and 0.827 to 0.878.Conclusion Both the KVIQ-20 and KVIQ-10 Chinese instruments have shown good testretest and inter-rater reliability and good internal consistency in assessing stroke survivors.Either is an effective tool for assessing their motor imagery ability.