Individual patterns of motor deficits evident in movement distribution analysis
Identifieur interne : 001B09 ( Main/Merge ); précédent : 001B08; suivant : 001B10Individual patterns of motor deficits evident in movement distribution analysis
Auteurs : Felix C. Huang ; James L. PattonSource :
- IEEE ... International Conference on Rehabilitation Robotics : [proceedings] [ 1945-7898 ] ; 2013.
Abstract
Recent studies in rehabilitation have shown potential benefits of patient-initiated exploratory practice. Such findings, however, lead to new challenges in how to quantify and interpret movement patterns. We posit that changes in coordination are most evident in statistical distributions of movements. In a test on 10 chronic stroke subjects practicing for 3 days, we found that inter-quartile range of motion did not show improvement. However, a multivariate Gaussians analysis required more complexity at the end of training. Beyond simply characterizing movement, linear discriminant classification of each patient’s movement distribution also identified that each patient’s motor deficit left a unique signature. The greatest distinctions were observed in the space of accelerations (rather than position or velocity). These results suggest that unique deficits are best detected with such a distribution analysis, and also point to the need for customized interventions that consider such patient-specific motor deficits.
Url:
DOI: 10.1109/ICORR.2013.6650430
PubMed: 24187248
PubMed Central: 4453863
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