Document Detail

Cervical motion assessment using virtual reality.
MedLine Citation:
PMID:  19404177     Owner:  NLM     Status:  MEDLINE    
STUDY DESIGN: Repeated measures of cervical motion in asymptomatic subjects. OBJECTIVES: To introduce a virtual reality (VR)-based assessment of cervical range of motion (ROM); to establish inter and intratester reliability of the VR-based assessment in comparison with conventional assessment in asymptomatic individuals; and to evaluate the effect of a single VR session on cervical ROM. SUMMARY OF BACKGROUND DATA: Cervical ROM and clinical issues related to neck pain is frequently studied. A wide variety of methods is available for evaluation of cervical motion. To date, most methods rely on voluntary responses to an assessor's instructions. However, in day-to-day life, head movement is generally an involuntary response to multiple stimuli. Therefore, there is a need for a more functional assessment method, using sensory stimuli to elicit spontaneous neck motion. VR attributes may provide a methodology for achieving this goal. METHODS: A novel method was developed for cervical motion assessment utilizing an electromagnetic tracking system and a VR game scenario displayed via a head mounted device. Thirty asymptomatic participants were assessed by both conventional and VR-based methods. Inter and intratester repeatability analyses were performed. The effect of a single VR session on ROM was evaluated. RESULTS: Both assessments showed non-biased results between tests and between testers (P > 0.1). Full-cycle repeatability coefficients ranged between 15.0 degrees and 29.2 degrees with smaller values for rotation and for the VR assessment. A single VR session significantly increased ROM, with largest effect found in the rotation direction. CONCLUSION: Inter and intratester reliability was supported for both the VR-based and the conventional methods. Results suggest better repeatability for the VR method, with rotation being more precise than flexion/extension. A single VR session was found to be effective in increasing cervical motion, possibly due to its motivating effect.
Hilla Sarig-Bahat; Patrice L Weiss; Yocheved Laufer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Spine     Volume:  34     ISSN:  1528-1159     ISO Abbreviation:  Spine     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-04-30     Completed Date:  2009-07-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7610646     Medline TA:  Spine (Phila Pa 1976)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1018-24     Citation Subset:  IM    
Physical Therapy Department, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel.
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MeSH Terms
Anthropometry / instrumentation,  methods*
Cervical Vertebrae / anatomy & histology,  physiology*
Disability Evaluation
Electromagnetic Phenomena*
Head Movements / physiology*
Middle Aged
Neck Pain / diagnosis,  etiology,  physiopathology
Observer Variation
Radiculopathy / diagnosis,  etiology,  physiopathology
Range of Motion, Articular / physiology*
Reproducibility of Results
Sensitivity and Specificity
User-Computer Interface*
Video Games / trends
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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