scholarly journals Investigating the Use of Virtual Reality Headsets for Postural Control Assessment: An Instrument Validation Study (Preprint)

10.2196/24950 ◽  
2020 ◽  
Author(s):  
Brian Sylcott ◽  
Chia-Cheng Lin ◽  
Keith Williams ◽  
Mark Hinderaker
Keyword(s):  
Virtual Reality ◽  
Postural Control ◽  
Validation Study ◽  
Instrument Validation

scholarly journals Postural Control Disturbances Induced by Virtual Reality in Stroke Patients

2021 ◽  
Vol 11 (4) ◽  
pp. 1510
Author(s):  
Charles Morizio ◽  
Maxime Billot ◽  
Jean-Christophe Daviet ◽  
Stéphane Baudry ◽  
Christophe Barbanchon ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Postural Control ◽  
Virtual Environments ◽  
Center Of Pressure ◽  
Dynamic Condition ◽  
Static Condition ◽  
Stroke Patients ◽  
Post Stroke ◽  
Subacute Stroke

People who survive a stroke are often left with long-term neurologic deficits that induce, among other impairments, balance disorders. While virtual reality (VR) is growing in popularity for postural control rehabilitation in post-stroke patients, studies on the effect of challenging virtual environments, simulating common daily situations on postural control in post-stroke patients, are scarce. This study is a first step to document the postural response of stroke patients to different challenging virtual environments. Five subacute stroke patients and fifteen age-matched healthy adults were included. All participants underwent posturographic tests in control conditions (open and closed eyes) and virtual environment without (one static condition) and with avatars (four dynamic conditions) using a head-mounted device for VR. In dynamic environments, we modulated the density of the virtual crowd (dense and light crowd) and the avoidance space with the avatars (near or far). Center of pressure velocity was collected by trial throughout randomized 30-s periods. Results showed that more challenging conditions (dynamic condition) induced greater postural disturbances in stroke patients than in healthy counterparts. Our study suggests that virtual reality environments should be adjusted in light of obtaining more or less challenging conditions.

scholarly journals Effectiveness of Virtual Reality and Visual Feedback on Balance and Leg Function in Children with Cerebral Palsy

2019 ◽  
Vol 1 (18) ◽  
Author(s):  
Arūnė Dūdaitė ◽  
Vilma Juodžbalienė
Keyword(s):  
Virtual Reality ◽  
Cerebral Palsy ◽  
Postural Control ◽  
Range Of Motion ◽  
Visual Feedback ◽  
Lower Limb ◽  
Dynamic Balance ◽  
Control Group ◽  
Children With Cerebral Palsy ◽  
Stretching Exercises

Research background. Virtual reality and visual feedback improve motor performance, motor function and balance, so we want to fnd if it affects the function of legs and balance of children with spastic hemiplegia. Research aim was to establish if the use of virtual reality and visual feedback with traditional physiotherapy improve the function of legs and balance of children with cerebral palsy. Methods. Nine children with cerebral palsy participated in the research. Participants were randomly divided into two groups – virtual reality group (n = 6) and control (n = 3). Virtual reality group practised exergaming and stretching exercises for 10 weeks, twice a week. Control group practiced conventional physiotherapy and stretching exercises for 6 weeks, twice a week. We measured the range of motion of the lower limb, spasticity of the lower limb using Modifed Ashworth’o Scale, static, dynamic balance, trunk coordination using Trunk Impairment Scale at the start and the end of the research, and balance using Pediatric Balance Scale. Results. Virtual reality and visual feedback reduced the spasticity of the lower limb, improved balance and postural control for children with cerebral palsy, but it did not improve the range of motion of the lower limb of children with cerebral palsy. Conclusions. Virtual reality and visual feedback did not improve the range of motion of the lower limb of children with cerebral palsy. Virtual reality and visual feedback reduced spasticity of the lower limb, improved balance and postural control for children with cerebral palsy.Keywords. Cerebral palsy, virtual reality, visual feedback, postural control, muscle architecture.

scholarly journals Accuracy and Reproducibility of Linear and Angular Measurements in Virtual Reality: a Validation Study

2019 ◽  
Vol 33 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Asif Ahmed Anik ◽  
Brian A. Xavier ◽  
Jan Hansmann ◽  
Emmanuel Ansong ◽  
Jinsong Chen ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Validation Study ◽  
Angular Measurements

scholarly journals Virtual reality simulation to teach videolaryngoscopy: a preliminary validation study

2020 ◽  
Vol 125 (1) ◽  
pp. e209-e210
Author(s):  
P. Schoettker ◽  
A. Potié ◽  
A. Dzyuba ◽  
E. Ovcharenko ◽  
N. De Wydt ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Validation Study ◽  
Virtual Reality Simulation ◽  
Preliminary Validation

976 Virtual reality simulation for holmium laser enucleation of the prostate: A validation study

2015 ◽  
Vol 14 (2) ◽  
pp. e976
Author(s):  
C. Kuronen-Stewart ◽  
K. Ahmed ◽  
A. Aydin ◽  
M.S. Khan ◽  
P. Dasgupta ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Validation Study ◽  
Holmium Laser ◽  
Virtual Reality Simulation ◽  
Laser Enucleation ◽  
Holmium Laser Enucleation
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