scholarly journals Neck Motion Analysis Using a Virtual Environment

10.5772/13190 ◽  
2010 ◽  
Author(s):  
Sarig Bahat
Keyword(s):  
Virtual Environment ◽  
Motion Analysis

Upper Limb Assessment of People With Multiple Sclerosis With the Use of a Haptic Nine-Hole Peg-Board Test

2008 ◽  
Author(s):  
Evagoras G. Xydas ◽  
Loucas S. Louca
Keyword(s):  
Multiple Sclerosis ◽  
Young Adults ◽  
Virtual Environment ◽  
Motion Analysis ◽  
Upper Limb ◽  
Three Dimensional ◽  
Haptic Interface ◽  
Robotic Arm ◽  
Minimum Jerk ◽  
Board Test

In this work, a nine-hole peg-board test (NHPT) arrangement is implemented in a Virtual Environment with the use of a Haptic Interface that has the form of a small robotic arm. The Haptic NHPT is used as a mean for investigating the validity of a quantitative metric, which is based on smoothness maximization, as a possible assessment parameter for three dimensional reaching tasks. More specifically this study refers to the assessment of people with multiple sclerosis. The basic metric is developed by combining a neurophysical concept, which suggests that the three dimensional trajectories are piecewise planar, with the minimum jerk model (MJM) which in turn maximizes the smoothness along a predefined path. A total number of sixteen persons participated in the study. From these, nine were healthy young adults and seven were people with MS of various ages and at different stages of disease progress. All participants performed the exercise three times, of which only the second and third were used in the analyses. The results showed that the employed procedure was successful for developing a motion analysis metric for the smoothness in three dimensional trajectories. Also, a clear and traceable difference in performance appeared between the two groups, by using the developed assessment metric.

scholarly journals A Virtual Environment for Hand Motion Analysis

Procedia CIRP ◽  
2018 ◽  
Vol 78 ◽  
pp. 127-132
Author(s):  
Hamid Reza Fazeli ◽  
Sumanth Kuntavalli Venkatesh ◽  
Qingjin Peng
Keyword(s):  
Virtual Environment ◽  
Motion Analysis ◽  
Hand Motion

scholarly journals An automated time and hand motion analysis based on planar motion capture extended to a virtual environment

2015 ◽  
Vol 11 (3) ◽  
pp. 391-402 ◽  
Author(s):  
Hector A. Tinoco ◽  
Alex M. Ovalle ◽  
Carlos A. Vargas ◽  
María J. Cardona
Keyword(s):  
Virtual Environment ◽  
Motion Analysis ◽  
Motion Capture ◽  
Planar Motion ◽  
Hand Motion
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