https://scholars.lib.ntu.edu.tw/handle/123456789/506570
標題: | Reweighting of the sensory inputs for postural control in patients with cervical spondylotic myelopathy after surgery | 作者: | Lin, Iu-Shiuan DAR-MING LAI JIAN-JIUN DING Chien, Andy Cheng, Chih-Hsiu SHWU-FEN WANG JAW-LIN WANG Kuo, Chi-Lin WEI-LI HSU |
關鍵字: | Center of pressure;Gabor transform;Sensory integration;Time-frequency analysis | 公開日期: | 2019 | 出版社: | BioMed Central Ltd. | 卷: | 16 | 期: | 1 | 起(迄)頁: | 96 | 來源出版物: | Journal of NeuroEngineering and Rehabilitation | 摘要: | Background: Cervical spondylotic myelopathy (CSM) is a degenerative cervical disease in which the spinal cord is compressed. Patients with CSM experience balance disturbance because of impaired proprioception. The weighting of the sensory inputs for postural control in patients with CSM is unclear. Therefore, this study investigated the weighting of sensory systems in patients with CSM. Method: Twenty-four individuals with CSM (CSM group) and 24 age-matched healthy adults (healthy control group) were analyzed in this observational study. The functional outcomes (modified Japanese Orthopaedic Association Scale [mJOA], Japanese Orthopaedic Association Cervical Myelopathy Questionnaire [JOACMEQ], Nurick scale) and static balance (eyes-open and eyes-closed conditions) were assessed for individuals with CSM before surgery, 3 and 6 months after surgery. Time-domain and time-frequency-domain variables of the center of pressure (COP) were analyzed to examine the weighting of the sensory systems. Results: In the CSM group, lower extremity function of mJOA and Nurick scale significantly improved 3 and 6 months after surgery. Before surgery, the COP mean velocity and total energy were significantly higher in the CSM group than in the control group for both vision conditions. Compared with the control group, the CSM group exhibited lower energy content in the moderate-frequency band (i.e., proprioception) and higher energy content in the low-frequency band (i.e., cerebellar, vestibular, and visual systems) under the eyes-open condition. The COP mean velocity of the CSM group significantly decreased 3 months after surgery. The energy content in the low-frequency band (i.e., visual and vestibular systems) of the CSM group was closed to that of the control group 6 months after surgery under the eyes-open condition. Conclusion: Before surgery, the patients with CSM may have had compensatory sensory weighting for postural control, with decreased weighting on proprioception and increased weighting on the other three sensory inputs. After surgery, the postural control of the patients with CSM improved, with decreased compensation for the proprioceptive system from the visual and vestibular inputs. However, the improvement remained insufficient because the patients with CSM still had lower weighting on proprioception than the healthy adults did. Therefore, patients with CSM may require balance training and posture education after surgery. © 2019 The Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069907953&doi=10.1186%2fs12984-019-0564-2&partnerID=40&md5=5c8c39d41fdb2e39e4cac041a436f002 https://scholars.lib.ntu.edu.tw/handle/123456789/506570 |
ISSN: | 1743-0003 | DOI: | 10.1186/s12984-019-0564-2 |
顯示於: | 物理治療學系所 |
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