Article
Selective Effects of Arm Proximal and Distal Muscles Fatigue on Force Coordination in Manipulation Tasks
Journal of Motor Behavior
(2014)
Abstract
Effects of muscle fatigue on force coordination and task performance of various manipulation tasks are explored. Grip force (GF; normal force component acting at the digits-object contact area) and load force (LF; tangential component that lifts and holds objects) were recorded prior to and after fatiguing the distal (DAM; i.e., GF producing) and proximal arm muscles (PAM; LF producing). Results reveal a deterioration of GF scaling (i.e., averaged GF-LF ratio), GF-LF coupling (their correlation), and task performance (ability to exert a prescribed LF pattern) associated with DAM, but not PAM fatigue. Deteriorated force coordination clearly increases the likelihood of dropping an object; however, the observed selective effects of DAM and PAM fatigue represent a novel finding deserving of further research.
Keywords
- grip,
- hand,
- load,
- performance
Disciplines
Publication Date
July, 2014
DOI
10.1080/00222895.2014.893981
Citation Information
Nicholas Emge, Mehmet Uygur, Mandic Radivoj, Thomas W. Kaminski, et al.. "Selective Effects of Arm Proximal and Distal Muscles Fatigue on Force Coordination in Manipulation Tasks" Journal of Motor Behavior Vol. 46 Iss. 4 (2014) p. 259 - 265 ISSN: 0022-2895 Available at: http://works.bepress.com/mehmet-uygur/5/