2025-02-23T15:21:02-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-148336%22&qt=morelikethis&rows=5
2025-02-23T15:21:02-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-148336%22&qt=morelikethis&rows=5
2025-02-23T15:21:02-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T15:21:02-05:00 DEBUG: Deserialized SOLR response
Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements

Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements

A theoretical approach is proposed to define the force and position singular points (FSPs and PSPs) in the circular, ellipsoidal, and linear planar two-joint movements produced under steady loadings directed along the movement traces. The FSPs coincide with changes in the direction of the force m...

Full description

Saved in:
Bibliographic Details
Main Author: Kostyukov, A.I.
Format: Article
Language:English
Published: Інститут фізіології ім. О.О. Богомольця НАН України 2016
Series:Нейрофизиология
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/148336
Tags: Add Tag
No Tags, Be the first to tag this record!
id irk-123456789-148336
record_format dspace
spelling irk-123456789-1483362019-02-19T01:29:44Z Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements Kostyukov, A.I. A theoretical approach is proposed to define the force and position singular points (FSPs and PSPs) in the circular, ellipsoidal, and linear planar two-joint movements produced under steady loadings directed along the movement traces. The FSPs coincide with changes in the direction of the force moments acting around the joints; the PSPs show the locations of the extrema at the joint angle trajectories. The force synergy (defined by the location of FSPs) provides a strong influence on the activation synergy; the latter is largely described by correlations between the activities recorded from the muscles participating in the movement. The position synergy (defined by the location of PSPs) is responsible for a hysteresis-related modulation of the activation synergy. Geometrical procedures are proposed to define positions of the FSPs and PSPs along various movement traces; this can provide a general description of the force and position synergies for the movements. The force synergies in the circular movements cover four sectors with diverse loading combinations of the flexor and extensor muscles belonging to different joints. The variability of the synergy effects for changes in the size and position of the circular trajectories is analyzed; the synergy patterns are also considered for ellipsoidal and linear movement traces. A Force Feedback Control Hypothesis is proposed; it allows one to explain the decrease in the number of controlled variables during real multi-joint movements. 2016 Article Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements / A.I. Kostyukov // Нейрофизиология. - 2016. - Т. 48, № 4. - С. 315-325. — Бібліогр.: 20 назв. — англ. 0028-2561 http://dspace.nbuv.gov.ua/handle/123456789/148336 159.946:611.737 en Нейрофизиология Інститут фізіології ім. О.О. Богомольця НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description A theoretical approach is proposed to define the force and position singular points (FSPs and PSPs) in the circular, ellipsoidal, and linear planar two-joint movements produced under steady loadings directed along the movement traces. The FSPs coincide with changes in the direction of the force moments acting around the joints; the PSPs show the locations of the extrema at the joint angle trajectories. The force synergy (defined by the location of FSPs) provides a strong influence on the activation synergy; the latter is largely described by correlations between the activities recorded from the muscles participating in the movement. The position synergy (defined by the location of PSPs) is responsible for a hysteresis-related modulation of the activation synergy. Geometrical procedures are proposed to define positions of the FSPs and PSPs along various movement traces; this can provide a general description of the force and position synergies for the movements. The force synergies in the circular movements cover four sectors with diverse loading combinations of the flexor and extensor muscles belonging to different joints. The variability of the synergy effects for changes in the size and position of the circular trajectories is analyzed; the synergy patterns are also considered for ellipsoidal and linear movement traces. A Force Feedback Control Hypothesis is proposed; it allows one to explain the decrease in the number of controlled variables during real multi-joint movements.
format Article
author Kostyukov, A.I.
spellingShingle Kostyukov, A.I.
Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
Нейрофизиология
author_facet Kostyukov, A.I.
author_sort Kostyukov, A.I.
title Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
title_short Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
title_full Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
title_fullStr Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
title_full_unstemmed Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements
title_sort theoretical analysis of the force and position synergies in two-joint movements
publisher Інститут фізіології ім. О.О. Богомольця НАН України
publishDate 2016
url http://dspace.nbuv.gov.ua/handle/123456789/148336
citation_txt Theoretical Analysis of the Force and Position Synergies in Two-Joint Movements / A.I. Kostyukov // Нейрофизиология. - 2016. - Т. 48, № 4. - С. 315-325. — Бібліогр.: 20 назв. — англ.
series Нейрофизиология
work_keys_str_mv AT kostyukovai theoreticalanalysisoftheforceandpositionsynergiesintwojointmovements
first_indexed 2023-05-20T17:30:21Z
last_indexed 2023-05-20T17:30:21Z
_version_ 1796153444580458496

Similar Items