Similar Motion of a Hand-held Object may Trigger Nonsimilar Grip Force Adjustments

Fan Gao, Mark L. Latash, Vladimir M. Zatsiorsky

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The tight coupling between load (L) and grip (G) forces during voluntary manipulation of a hand-held object is well established. The current study is to examine grip-load force coupling when motion of the hand with an object was either self-generated (voluntary) or externally generated. Subjects performed similar cyclic movements of different loads at various frequencies with three types of manipulations: 1) voluntary oscillation, 2) oscillating the right arm via the pulley system by the left leg (self-driven oscillation), and 3) oscillating the arm via the pulley system by another person (other-driven oscillation). During the self-generated movements: 1) the grip forces were larger and 2) grip-load force modulation was more pronounced than in the externally generated movements. The G-L adjustments are not completely determined by the mechanics of object motion; nonmechanical factors related to movement performance, for instance perceptual factors, may affect the G-L coupling.

Original languageEnglish (US)
Pages (from-to)300-308
Number of pages9
JournalJournal of Hand Therapy
Volume20
Issue number4
DOIs
StatePublished - Oct 2007

Fingerprint

Hand Strength
Hand
Arm
Gravitation
Mechanics
Leg

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Similar Motion of a Hand-held Object may Trigger Nonsimilar Grip Force Adjustments. / Gao, Fan; Latash, Mark L.; Zatsiorsky, Vladimir M.

In: Journal of Hand Therapy, Vol. 20, No. 4, 10.2007, p. 300-308.

Research output: Contribution to journalArticle

Gao, Fan ; Latash, Mark L. ; Zatsiorsky, Vladimir M. / Similar Motion of a Hand-held Object may Trigger Nonsimilar Grip Force Adjustments. In: Journal of Hand Therapy. 2007 ; Vol. 20, No. 4. pp. 300-308.
@article{deec8e8ae39846e39e1bbefe5d0b9bb2,
title = "Similar Motion of a Hand-held Object may Trigger Nonsimilar Grip Force Adjustments",
abstract = "The tight coupling between load (L) and grip (G) forces during voluntary manipulation of a hand-held object is well established. The current study is to examine grip-load force coupling when motion of the hand with an object was either self-generated (voluntary) or externally generated. Subjects performed similar cyclic movements of different loads at various frequencies with three types of manipulations: 1) voluntary oscillation, 2) oscillating the right arm via the pulley system by the left leg (self-driven oscillation), and 3) oscillating the arm via the pulley system by another person (other-driven oscillation). During the self-generated movements: 1) the grip forces were larger and 2) grip-load force modulation was more pronounced than in the externally generated movements. The G-L adjustments are not completely determined by the mechanics of object motion; nonmechanical factors related to movement performance, for instance perceptual factors, may affect the G-L coupling.",
author = "Fan Gao and Latash, {Mark L.} and Zatsiorsky, {Vladimir M.}",
year = "2007",
month = "10",
doi = "10.1197/j.jht.2007.06.002",
language = "English (US)",
volume = "20",
pages = "300--308",
journal = "Journal of Hand Therapy",
issn = "0894-1130",
publisher = "Hanley and Belfus Inc.",
number = "4",

}

TY - JOUR

T1 - Similar Motion of a Hand-held Object may Trigger Nonsimilar Grip Force Adjustments

AU - Gao, Fan

AU - Latash, Mark L.

AU - Zatsiorsky, Vladimir M.

PY - 2007/10

Y1 - 2007/10

N2 - The tight coupling between load (L) and grip (G) forces during voluntary manipulation of a hand-held object is well established. The current study is to examine grip-load force coupling when motion of the hand with an object was either self-generated (voluntary) or externally generated. Subjects performed similar cyclic movements of different loads at various frequencies with three types of manipulations: 1) voluntary oscillation, 2) oscillating the right arm via the pulley system by the left leg (self-driven oscillation), and 3) oscillating the arm via the pulley system by another person (other-driven oscillation). During the self-generated movements: 1) the grip forces were larger and 2) grip-load force modulation was more pronounced than in the externally generated movements. The G-L adjustments are not completely determined by the mechanics of object motion; nonmechanical factors related to movement performance, for instance perceptual factors, may affect the G-L coupling.

AB - The tight coupling between load (L) and grip (G) forces during voluntary manipulation of a hand-held object is well established. The current study is to examine grip-load force coupling when motion of the hand with an object was either self-generated (voluntary) or externally generated. Subjects performed similar cyclic movements of different loads at various frequencies with three types of manipulations: 1) voluntary oscillation, 2) oscillating the right arm via the pulley system by the left leg (self-driven oscillation), and 3) oscillating the arm via the pulley system by another person (other-driven oscillation). During the self-generated movements: 1) the grip forces were larger and 2) grip-load force modulation was more pronounced than in the externally generated movements. The G-L adjustments are not completely determined by the mechanics of object motion; nonmechanical factors related to movement performance, for instance perceptual factors, may affect the G-L coupling.

UR - http://www.scopus.com/inward/record.url?scp=35348817257&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35348817257&partnerID=8YFLogxK

U2 - 10.1197/j.jht.2007.06.002

DO - 10.1197/j.jht.2007.06.002

M3 - Article

VL - 20

SP - 300

EP - 308

JO - Journal of Hand Therapy

JF - Journal of Hand Therapy

SN - 0894-1130

IS - 4

ER -