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. 2018 Feb 23;12:10. doi: 10.3389/fncom.2018.00010

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Copyright © 2018 Israely, Leisman, Machluf and Carmeli.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) The Hand-Reaching Spatial Device. Participants were asked to reach with their dominant hand (control group) or the more impaired hand (study group) to nine different targets that were located in each participant's maximum hand-reaching range of motion. The photographed participant signed an informed consent form to permit publication of this photo. (B) Representation of the order and direction of the targets for a person with dominant right hand. (C) Experimental setup. Participants were executed three maximal isometric contractions (MVC) for each muscle, with 1 min rest between tests. During these tests the experimenter confirmed correct placement of the electrodes. This was followed by five hand-reaching movements for each of the nine targets, in a fixed order. Participants were aware of the target direction before the execution of the reaching task.