Toward a New Approach for Analysis of Joint Range of Motion in Three-dimensional Digitized Analysis by One Camera

The use of multiple cameras for motion analysis and single joint motion is very difficult and needs high technology in laboratory conditions. Detection of single joint motion in kinesthesia and analysis of its changes can be done by one camera at one direction. In this study, we present the validity and reliability of a new prototype simulator system used for motion analysis application.
Material and
A moveable lever arm can rotate in three dimensions (3D) and can be controlled by three goniometers separately. A special software was written for the detection of four reflective markers that fixed to moveable liver arm, by one camera in front of it. Two approaches for this study were (a) selective and (b) random 3D simulation. Three repetitions for each variation and each dimension were selected and correlation was computed between simulator and images captured by camera.
There are high correlations between simulator and one camera system for each condition. In addition, a minimum degree error appeared.
Results indicated that this new approach can be useful for all clinical and research approaches in biomechanical or occupational areas.
Journal of Modern Rehabilitation, Volume:10 Issue: 3, Summer 2016
134 to 138  
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