ArticleScientific reports2018
Effect of Kinetic Degrees of Freedom on Multi-Finger Synergies and Task Performance during Force Production and Release Tasks.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Impaired trunk sensorimotor control during isometric force reproduction involving rotation and extension in adolescents with idiopathic scoliosis.North American Spine Society journal · 2026Article
- Changes in synergy formation and modulation during cyclic finger force production tasks in female adults with dystonic cerebral palsy.Experimental brain research · 2026Article
- Two strategies of anticipatory mechanism during change in frequency of cyclic multi-finger force production in isometric conditions.Experimental brain research · 2026Article
- Altered regularity and stability of multi-finger force production in individuals with mild cognitive impairment.Frontiers in human neuroscience · 2026Article
- Recruit-aged adults may preferentially weight task goals over deleterious cost functions during short duration loaded and imposed gait tasks.Scientific reports · 2023Article
- Frequency-Dependent Effects on Coordination and Prefrontal Hemodynamics During Finger Force Production Tasks.Frontiers in human neuroscience · 2021Article
- Effects of spastic cerebral palsy on multi-finger coordination during isometric force production tasks.Experimental brain research · 2019Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Complex structures present in a human body has relatively large degrees-of-freedom (DOFs) as compared to the requirement of a particular task. This phenomenon called motor redundancy initially deemed as a computational problem rather can be understood as having the flexibility to perform the certain task successfully. Hence, the purpose of our study was to examine the positive impact of extra DOFs (redundant DOFs) during force production tasks. For this purpose, an experimental setup was designed to simulate archery-like shooting, and purposeful organization of a redundant set of finger forces determined the stability of important performance variables as well as accurate and precise performance. DOFs were adjusted by changing the number of fingers explicitly involved in the task. The concept of motor synergy and computational framework of uncontrolled manifold (UCM) approach was used to quantify stability indices during finger force production. As a result, accuracy and precision of the task improved with an increase in DOFs. Also, the stability indices of net finger forces and moment increased with active DOFs of fingers. We concluded that the controller actively utilizes extra DOFs to increase the stability of the performance, which is associated with the improved accuracy and precision of the task.
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