Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking
Here, we aimed to compare the unstable gait caused by unilateral vestibular hypofunction (UVH) with the normal gait. Twelve patients with UVH and twelve age-matched control subjects were enrolled in the study. Thirty-four markers were attached to anatomical positions of each participant, and a three...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Behavioural Neurology |
| Online Access: | http://dx.doi.org/10.1155/2017/4820428 |
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| author | Peng Liu Qiuhong Huang Yongkang Ou Ling Chen Rong Song Yiqing Zheng |
| author_facet | Peng Liu Qiuhong Huang Yongkang Ou Ling Chen Rong Song Yiqing Zheng |
| author_sort | Peng Liu |
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| description | Here, we aimed to compare the unstable gait caused by unilateral vestibular hypofunction (UVH) with the normal gait. Twelve patients with UVH and twelve age-matched control subjects were enrolled in the study. Thirty-four markers were attached to anatomical positions of each participant, and a three-dimensional (3D) motion analysis system was used to capture marker coordinates as the participants walked on a treadmill. The mean standard deviation of the rotation angles was used to represent gait variability. To explore gait stability, local dynamic stability was calculated from the trunk trajectory. The UVH group had wider step width and greater variability of roll rotation at the hip than the control group (P<0.05). Also, the UVH group had lower local dynamic stability in the medial-lateral (ML) direction than the control group (P<0.05). By linear regression analysis, we identified a linear relationship between the short-term Lyapunov exponent and vestibular functional asymmetry. The result implies that UVH-induced asymmetry can increase posture variability and gait instability. This study demonstrates the potential for using kinematic parameters to quantitatively evaluate the severity of vestibular functional asymmetry. Further studies will be needed to explore the clinical effectiveness of such approaches. |
| format | Article |
| id | doaj-art-feeaf9c700b74124bf5e2283cd09a3bc |
| institution | Kabale University |
| issn | 0953-4180 1875-8584 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Behavioural Neurology |
| spelling | doaj-art-feeaf9c700b74124bf5e2283cd09a3bc2025-02-03T01:26:49ZengWileyBehavioural Neurology0953-41801875-85842017-01-01201710.1155/2017/48204284820428Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill WalkingPeng Liu0Qiuhong Huang1Yongkang Ou2Ling Chen3Rong Song4Yiqing Zheng5Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Engineering, Sun Yat-sen University, No. 132, East Waihuan Rd, Higher Education Mega Center, Guangzhou 510006, ChinaDepartment of Otolaryngology-HNS, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Rd, Guangzhou 510120, ChinaDepartment of Otolaryngology-HNS, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Rd, Guangzhou 510120, ChinaDepartment of Otolaryngology-HNS, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Rd, Guangzhou 510120, ChinaGuangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Engineering, Sun Yat-sen University, No. 132, East Waihuan Rd, Higher Education Mega Center, Guangzhou 510006, ChinaDepartment of Otolaryngology-HNS, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Rd, Guangzhou 510120, ChinaHere, we aimed to compare the unstable gait caused by unilateral vestibular hypofunction (UVH) with the normal gait. Twelve patients with UVH and twelve age-matched control subjects were enrolled in the study. Thirty-four markers were attached to anatomical positions of each participant, and a three-dimensional (3D) motion analysis system was used to capture marker coordinates as the participants walked on a treadmill. The mean standard deviation of the rotation angles was used to represent gait variability. To explore gait stability, local dynamic stability was calculated from the trunk trajectory. The UVH group had wider step width and greater variability of roll rotation at the hip than the control group (P<0.05). Also, the UVH group had lower local dynamic stability in the medial-lateral (ML) direction than the control group (P<0.05). By linear regression analysis, we identified a linear relationship between the short-term Lyapunov exponent and vestibular functional asymmetry. The result implies that UVH-induced asymmetry can increase posture variability and gait instability. This study demonstrates the potential for using kinematic parameters to quantitatively evaluate the severity of vestibular functional asymmetry. Further studies will be needed to explore the clinical effectiveness of such approaches.http://dx.doi.org/10.1155/2017/4820428 |
| spellingShingle | Peng Liu Qiuhong Huang Yongkang Ou Ling Chen Rong Song Yiqing Zheng Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking Behavioural Neurology |
| title | Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking |
| title_full | Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking |
| title_fullStr | Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking |
| title_full_unstemmed | Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking |
| title_short | Characterizing Patients with Unilateral Vestibular Hypofunction Using Kinematic Variability and Local Dynamic Stability during Treadmill Walking |
| title_sort | characterizing patients with unilateral vestibular hypofunction using kinematic variability and local dynamic stability during treadmill walking |
| url | http://dx.doi.org/10.1155/2017/4820428 |
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