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M. Adachi1, K. Imada1
1Kinkai Rehabilitation Hospital, Department of Rehabilitation, Yonago, Tottori, Japan
Background: It has been proved that Mental Practice effectively affects the recovery of motor function as a method using motor images that do not require equipment. Physical function and motor imagery are closely related, and it was predicted that a decrease in motor imagery ability would delay functional recovery and lead to a decrease in activity. An index for physical therapy is needed to predict the participant’s space of life after discharge.
Purpose: Clarify whether the motor image evaluation while 10 meter walking is an index to predict the living range immediately after discharge.
Methods: The participants were 25 cases (9 males, 16 females, average age 72.0 ± 10.6 years) who presented with stroke during hospitalization in the convalescent rehabilitation ward. The diagnosis was cerebral infarction in 13 cases, cerebral hemorrhage in 9 cases, and other 3 cases. The actual measurement time of 10m walk and Mental Chronometry (MC) were measured at three locations in different environments. Two types of 10m walking were measured: walking without setting a speed (comfortable walking, ComW) and walking at the fastest as possible (maximum walking, MaxW). A month later of discharged, questionnaire for Life Space Assessment (LSA) was investigated. In the statistical analysis, the intra-examiner reliability of the M/A ratios at ComW and MaxW time was confirmed by Interclass correlation coefficients (ICC). For LSA one month after discharge, regression analysis was performed on the respective M/A ratios at ComW and MaxW.
Results: The M/A ratio of the ComW time was ICC (1,1) = 0.71 and ICC (1,3) = 0.88. The M/A ratio of the MaxW time was ICC (1,1) = 0.50 and ICC (1,3) = 0.74. The M/A ratio of ComW time and LSA one month after discharge showed a positive correlation, and p<0.01 was found in the analysis of variance table and regression coefficient. The coefficient of determination R-squared was 0.537, indicating high prediction accuracy. The M/A ratio of the MaxW time and the LSA one month after discharge showed a positive correlation, and p<0.01 was found in the analysis of variance table and the regression coefficient. The coefficient of determination R-squared was 0.605, indicating high prediction accuracy.
Conclusion(s): The M/A ratio of LSA and ComW time 1 month after discharge and the M/A ratio of MaxW time showed statistically significant differences, and the prediction accuracy was high. In this study, participants with high motor imagery ability did not necessarily expand their living space. Participants who overestimated their ability to walk with an M/A ratio of 1 or less tended to have a narrower space of living. For participants who underestimated their walking ability, it may be possible to expand their living space due to the better situation that they had predicted.
Implications: Evaluation of motor imagery ability for cases is useful for predicting the range of life immediately after discharge. If the patient himself overestimates his walking ability, he / she can expand his / her range of life by giving appropriate feedback and promoting recognition in line with the current situation.
Funding, acknowledgements: None
Keywords: motor image, stroke, space of life
Topic: Community based rehabilitation
Did this work require ethics approval? Yes
Institution: Kinkai Rehabilitation Hospital
Committee: ethics committee of Kinkai Rhabilitation Hospital
Ethics number: 16-014
All authors, affiliations and abstracts have been published as submitted.
