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Title: A robot-aided visuo-motor training that improves proprioception and spatial accuracy of untrained movement
Authors: Elangovan, Naveen
Cappello, Leonardo
Masia, Lorenzo
Aman, Joshua
Konczak, Jürgen
Keywords: Motor Learning
Issue Date: 2017
Source: Elangovan, N., Cappello, L., Masia, L., Aman, J., & Konczak, J. (2017). A robot-aided visuo-motor training that improves proprioception and spatial accuracy of untrained movement. Scientific Reports, 7(1), 17054-.
Series/Report no.: Scientific Reports
Abstract: Proprioceptive function can become enhanced during motor learning. Yet, we have incomplete knowledge to what extent proprioceptive function is trainable and how a training that enhances proprioception may infuence performance in untrained motor skills. To address this knowledge gap, healthy young adults (N=14) trained in a visuomotor task that required learners to make increasingly accurate wrist movements. Using a robotic exoskeleton coupled with a virtual visual environment, participants tilted a virtual table through continuous wrist fexion/extension movements with the goal to position a rolling ball on table into a target. With learning progress, the level of difculty increased by altering the virtual ball mechanics and the gain between joint movement and ball velocity. Before and after training, wrist position sense acuity and spatial movement accuracy in an untrained, discrete wrist-pointing task was assessed using the same robot. All participants showed evidence of proprioceptive-motor learning. Mean position sense discrimination threshold improved by 34%. Wrist movement accuracy in the untrained pointing task improved by 27% in 13/14 participants. This demonstrates that a short sensorimotor training challenging proprioception can a) efectively enhance proprioceptive acuity and b) improve the accuracy of untrained movement. These fndings provide a scientifc basis for applying such somatosensory-based motor training to clinical populations with known proprioceptive dysfunction to enhance sensorimotor performance.
ISSN: 2045-2322
Rights: © 2017 The Author(s) (Nature Publishing Group). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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