NDLI: Experimental assessment of a coincident timing motor task of the arm under a passive mechanical perturbation

Content Provider	IEEE Xplore Digital Library
Author	Quadrado, V.H. Noriega, C. Forner-Cordero, A.
Copyright Year	2014
Description	Author affiliation: Dept. of Mechatron. & Mech. Syst. of the Escola Politec., Univ. of Sao Paulo, Sao Paulo, Brazil (Noriega, C.; Forner-Cordero, A.) \|\| Dept. of Phys. Therapy, Univ. of Sao Paulo, Sao Paulo, Brazil (Quadrado, V.H.)
Abstract	There are many motor control aspects that must be taken into account for the design and application of rehabilitation robots and exoskeletons. In this respect the outcomes from behavioral motor control studies can provide relevant design criteria. In this context, to verify the level of motor learning and adaptation under the influence of mechanical perturbations, we used a coincident timing task. The task consisted of hitting with the hand a virtual target falling on the screen. The movement was performed in the horizontal plane and consisted of an elbow flexion to reach the real marker on a table. Sixteen volunteers were divided into two groups: 1-task without perturbation on the hand and, 2-task with a predictable mechanical perturbation on the hand. Data were analyzed by the percentage of correct responses and the tendency of the correct responses. In order to assess the duration as well as the velocity and acceleration of the movement, inertial sensors were used. The results showed a task performance improvement for group 2 when compared to group 1. Furthermore, group 1 showed a trend to delay on correct responses, while the trend in group 2 was to anticipate on correct responses. These results indicate that a predictable mechanical perturbation during learning this coincident timing task can improve the motor learning process and paves the way to further experiments with the use of an upper limb exoskeleton.
Starting Page	616
Ending Page	620
File Size	664341
Page Count	5
File Format	PDF
ISBN	9781479931262
ISSN	21551774
e-ISBN	9781479931286
DOI	10.1109/BIOROB.2014.6913846
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-12
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motor drives Force Exoskeletons Market research Timing Elbow Robots
Content Type	Text
Resource Type	Article

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