Oosterveld, H. (Hannneke) (2012) Motor imagery in stroke patients: what they think they can do and what they actually do. thesis, Human Movement Sciences.
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Abstract
Purpose: The aim of this study was to investigate the relation between a motor imagery questionnaire and a hand laterality task that are both aimed at assessing motor imagery ability. Both test instruments serve as a screening tool for including stroke patients in a mental practice program and therefore it is important to investigate whether the outcomes on both tests are in accordance with each other. Methods: Sixteen ischemic stroke patients (36±13 weeks post-stroke) and 16 controls, matched by age (51±10 years), gender (7 females) and handedness (3 left-handed), performed a hand laterality task and completed a motor imagery questionnaire. Motor function was determined with the Brunnstrom Fugi-Meyer scale and the Utrecht Arm/hand Test. Results: Neither in healthy controls nor in patients, a correlation is found between the hand laterality task and the questionnaire. Moderate effects are found for imagination of movements of the dominant hand for controls and the non-affected hand for stroke patients, compared to the contralateral side. No correlation was found between motor function and motor imagery ability. Conclusion: The questionnaire and the hand laterality task dissociate in the outcome of motor imagery ability. Stroke patients could have acquired selectively impaired scores on one of both test instruments. This indicates that the rating of motor imagery ability requires another cognitive ability than the actual motor imagery ability. The ability of self-reflection may be disturbed in stroke patients and therefore one must be aware that many patients underestimate their motor imagery ability following a questionnaire. Therefore a percentage of patients would be excluded from mental practice, although they still have intact motor imagery ability. Based on our results, we recommend to be critical to the use of a questionnaire as a screenin~ tool for mental practice.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Otten, Prof. dr. E. 1 and Tepper, Drs. M. 2 and 1 Center for Human Movement Sciences, University of Groninge and 2 Center for Rehabilitation, University Medical Center Groni |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 11:05 |
| Last Modified: | 25 Jun 2020 11:05 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2542 |
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