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Simulating overground turning in a VR-based linear treadmill

Title
Simulating overground turning in a VR-based linear treadmill
Authors
Park, Hyun-SoonYoon, JungwonSudduth, AmandaKim, JonghyunKang, Yeoun-Seung
DGIST Authors
Kim, Jonghyun
Issue Date
2013
Citation
2013 13th International Conference on Control, Automation and Systems, ICCAS 2013, 1436-1438
Type
Conference
Article Type
Conference Paper
ISBN
9790000000000
ISSN
1598-7833
Abstract
A Virtual Reality (VR)-based treadmill interface is developed for practicing turning skills in a linear treadmill. The interface incorporates self-paced speed control of treadmill and view angle control of virtual environment. The self-paced speed control allows users to voluntarily change walking speed so that they can reduce walking speed in a natural way near the corner of virtual corridors and increase walking speed while walking through straight virtual corridors. Based on the turning biomechanics in the literature, the VR interface implements voluntary control of view angle by user's head orientation for realistic turning in a linear treadmill. Through the pilot experiments with healthy volunteers, the realism of VR turning was evaluated by comparing the gait parameters in VR-based turning with respect to those of overground turning. Users controlled their head orientation angle properly without any prior instruction of how to walk through curved VR corridors in a straight treadmill. The head rotation angle during overground turning and VR turning was similar, and all users reduced walking speed and stride length near the virtual corners which is the same strategy of turning in the real world walking. The VR-based turning interface cannot implement exactly same biomechanics of turning in the real world walking because the linear treadmill does not allow lower body turning; however, it will be still useful in clinical settings for patients with neurological disorders to practice turning skills such as proper control of head orientation and overcoming hesitating behavior prior to turn. © 2013 IEEE.
URI
http://hdl.handle.net/20.500.11750/3809
DOI
10.1109/ICCAS.2013.6704111
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Kim, Jong Hyun REL(Rehabilitation Engineering Laboratory)
  • Research Interests Rehabilitation robotics; Biomedical robotics; Telerobotics; Haptic devices
Files:
There are no files associated with this item.
Collection:
Robotics EngineeringETC2. Conference Papers


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