A quantitative analysis of gait patterns in vestibular neuritis patients using gyroscope sensor and a continuous walking protocol
- Authors
- Kim, Soo Chan; Kim, Joo Yeon; Lee, Hwan Nyeong; Lee, Hwan Ho; Kwon, Jae Hwan; Kim, Nam Beom; Kim, Mi Joo; Hwang, Jong Hyun; Han, Gyu Cheol
- Issue Date
- 11-Apr-2014
- Publisher
- BIOMED CENTRAL LTD
- Keywords
- Locomotion; Gait; Vestibular system
- Citation
- JOURNAL OF NEUROENGINEERING AND REHABILITATION, v.11
- Journal Title
- JOURNAL OF NEUROENGINEERING AND REHABILITATION
- Volume
- 11
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12700
- DOI
- 10.1186/1743-0003-11-58
- ISSN
- 1743-0003
- Abstract
- Background: Locomotion involves an integration of vision, proprioception, and vestibular information. The parieto-insular vestibular cortex is known to affect the supra-spinal rhythm generators, and the vestibular system regulates anti-gravity muscle tone of the lower leg in the same side to maintain an upright posture through the extra-pyramidal track. To demonstrate the relationship between locomotion and vestibular function, we evaluated the differences in gait patterns between vestibular neuritis (VN) patients and normal subjects using a gyroscope sensor and long-way walking protocol. Methods: Gyroscope sensors were attached to both shanks of healthy controls (n = 10) and age-matched VN patients (n = 10). We then asked the participants to walk 88.8 m along a corridor. Through the summation of gait cycle data, we measured gait frequency (Hz), normalized angular velocity (NAV) of each axis for legs, maximum and minimum NAV, up-slope and down-slope of NAV in swing phase, stride-swing-stance time (s), and stance to stride ratio (%). Results: The most dominant walking frequency in the VN group was not different compared to normal control. The NAVs of z-axis (pitch motion) were significantly larger than the others (x-, y-axis) and the values in VN patients tended to decrease in both legs and the difference of NAV between both group was significant in the ipsi-lesion side in the VN group only (p = 0.03). Additionally, the gait velocity of these individuals was decreased relatively to controls (1.11 +/- 0.120 and 0.84 +/- 0.061 m/s in control and VN group respectively, p < 0.01), which seems to be related to the significantly increased stance and stride time of the ipsi-lesion side. Moreover, in the VN group, the maximum NAV of the lesion side was less, and the minimum one was higher than control group. Furthermore, the down-slope and up-slope of NAV decreased on the impaired side. Conclusion: The walking pattern of VN patients was highly phase-dependent, and NAV of pitch motion was significantly decreased in the ipsi-lesion side. The change of gait rhythm, stance and stride time, and maximum/ minimum NAV of the ipsi-lesion side were characteristics of individuals with VN.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 의과대학 > 의학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12700)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.