It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
Abstract
This study investigated the effects of altered visual gain levels on bilateral motor synergies determined by the uncontrolled manifold (UCM) hypothesis and force control. Twelve healthy participants performed bimanual index finger abduction force control tasks at 20% of their maximal voluntary contraction across four different visual gain conditions: 8, 80, 256, and 512 pixels/N. Quantifying force accuracy and variability within a trial provided a bimanual force control outcome. The UCM analysis measured bilateral motor synergies, a proportion of good variance to bad variance across multiple trials. Correlation analyses determined whether changes in the UCM variables were related to changes in force control variables from the lowest to highest visual gain conditions, respectively. Multiple analyses indicated that the three highest visual gain conditions in comparison to the lowest visual gain increased values of bilateral motor synergies and target force accuracy. The correlation findings showed that a reduction of bad variance from the lowest to three highest visual gain conditions was related to increased force accuracy. These findings reveal that visual gain greater than 8 pixels/N facilitates bimanual force control.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Incheon National University, Department of Human Movement Science, Incheon, South Korea (GRID:grid.412977.e) (ISNI:0000 0004 0532 7395); Incheon National University, Neuromechanical Rehabilitation Research Laboratory, Division of Sport Science and Sport Science Institute, Incheon, South Korea (GRID:grid.412977.e) (ISNI:0000 0004 0532 7395)
2 Incheon National University, Department of Human Movement Science, Incheon, South Korea (GRID:grid.412977.e) (ISNI:0000 0004 0532 7395); Incheon National University, Division of Sport Science, Sport Science Institute, and Health Promotion Center, Incheon, South Korea (GRID:grid.412977.e) (ISNI:0000 0004 0532 7395); Incheon National University, Neuromechanical Rehabilitation Research Laboratory, Division of Sport Science and Sport Science Institute, Incheon, South Korea (GRID:grid.412977.e) (ISNI:0000 0004 0532 7395)
3 University of Florida, Department of Applied Physiology and Kinesiology, Gainesville, USA (GRID:grid.15276.37) (ISNI:0000 0004 1936 8091)