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The Timed Up & Go (TUG) is one of the recommended tools in rehabilitation settings to assess the probability of falling in the elderly. However, the test does not incorporate any of the environmental or multitasking elements identified as increasing risk for falls. Older adults are more visually dependent than younger adults; thus, they are more likely to fall when visual or other distractions...
The relationship between visual field motion and intersegmental behavior during postural destabilization was explored. Individuals with cerebral palsy (CP) were separated through a rod and frame test into those with visual dependence (VD) or independence (VI) to determine whether reliance upon an allocentric reference frame alters the postural organization. We hypothesized that VD reduces intersegmental...
In this paper, we report a robust, efficient, and automatic method for matching infrared tracked markers for human motion analysis in computer-aided physical therapy applications. The challenges of this task stem from non-rigid marker motion, occlusion, and timing requirements. To overcome these difficulties, we use pair-wise distance constraints for marker identification. To meet the timing requirements,...
Visual field immersion and plantar vibration effects on balance were examined. Healthy adults stood quietly in a 3-wall immersive virtual environment (VE) and with a 3DTV for four trials while: barefoot, barefoot on foam, and wearing shoes on foam with and without sub-threshold plantar vibration. RMS of center of pressure velocity were significantly larger in VE than 3DTV (p<0.0002). Responses...
Aphasia is an acquired communication disorder that affects the ability to speak and understand spoken language. The purpose of this project is to create a virtual clinician to help individuals with aphasia practice self-initiated speech in everyday communication situations. The project will gauge the interaction and quality of this virtual clinician against those of a real clinician. The first of...
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