Dynamics of posture in 3- and 5-year-old children as a function of task constraints

S. M. Slobounov, K. M. Newell

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The postural dynamics of 3- and 5-year-old children were examined under task constraints of one- and two-leg stance with and without vision. Force platform measures showed that motion of the center of pressure increased as the task constraints changed from bipedal to one-legged stance and vision available to no vision, and that this performance decrement was enhanced in the 3-year-old age group. Videotape analysis of the movement of the torso and limbs during the postural task showed that the children attempted to accommodate the decreased stability of the more difficult task conditions by introducing the control of more biomechanical degrees of freedom into the postural action, but systematic compensatory movement pattern strategies were only evident in the older 5-year-old group. These findings are consistent with the notion that compensatory movement strategies for the recovery of postural stability under more difficult task constraints are reflections of experience in exploiting the dynamics of the perceptual-motor workspace.

Original languageEnglish (US)
Pages (from-to)861-875
Number of pages15
JournalHuman Movement Science
Volume13
Issue number6
DOIs
StatePublished - Dec 1994

Fingerprint

Posture
Leg
Torso
Videotape Recording
Extremities
Age Groups
Pressure

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Experimental and Cognitive Psychology

Cite this

@article{e62cfb23ae79480d8ad0807271c56a70,
title = "Dynamics of posture in 3- and 5-year-old children as a function of task constraints",
abstract = "The postural dynamics of 3- and 5-year-old children were examined under task constraints of one- and two-leg stance with and without vision. Force platform measures showed that motion of the center of pressure increased as the task constraints changed from bipedal to one-legged stance and vision available to no vision, and that this performance decrement was enhanced in the 3-year-old age group. Videotape analysis of the movement of the torso and limbs during the postural task showed that the children attempted to accommodate the decreased stability of the more difficult task conditions by introducing the control of more biomechanical degrees of freedom into the postural action, but systematic compensatory movement pattern strategies were only evident in the older 5-year-old group. These findings are consistent with the notion that compensatory movement strategies for the recovery of postural stability under more difficult task constraints are reflections of experience in exploiting the dynamics of the perceptual-motor workspace.",
author = "Slobounov, {S. M.} and Newell, {K. M.}",
year = "1994",
month = "12",
doi = "10.1016/0167-9457(94)90022-1",
language = "English (US)",
volume = "13",
pages = "861--875",
journal = "Human Movement Science",
issn = "0167-9457",
publisher = "Elsevier",
number = "6",

}

Dynamics of posture in 3- and 5-year-old children as a function of task constraints. / Slobounov, S. M.; Newell, K. M.

In: Human Movement Science, Vol. 13, No. 6, 12.1994, p. 861-875.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dynamics of posture in 3- and 5-year-old children as a function of task constraints

AU - Slobounov, S. M.

AU - Newell, K. M.

PY - 1994/12

Y1 - 1994/12

N2 - The postural dynamics of 3- and 5-year-old children were examined under task constraints of one- and two-leg stance with and without vision. Force platform measures showed that motion of the center of pressure increased as the task constraints changed from bipedal to one-legged stance and vision available to no vision, and that this performance decrement was enhanced in the 3-year-old age group. Videotape analysis of the movement of the torso and limbs during the postural task showed that the children attempted to accommodate the decreased stability of the more difficult task conditions by introducing the control of more biomechanical degrees of freedom into the postural action, but systematic compensatory movement pattern strategies were only evident in the older 5-year-old group. These findings are consistent with the notion that compensatory movement strategies for the recovery of postural stability under more difficult task constraints are reflections of experience in exploiting the dynamics of the perceptual-motor workspace.

AB - The postural dynamics of 3- and 5-year-old children were examined under task constraints of one- and two-leg stance with and without vision. Force platform measures showed that motion of the center of pressure increased as the task constraints changed from bipedal to one-legged stance and vision available to no vision, and that this performance decrement was enhanced in the 3-year-old age group. Videotape analysis of the movement of the torso and limbs during the postural task showed that the children attempted to accommodate the decreased stability of the more difficult task conditions by introducing the control of more biomechanical degrees of freedom into the postural action, but systematic compensatory movement pattern strategies were only evident in the older 5-year-old group. These findings are consistent with the notion that compensatory movement strategies for the recovery of postural stability under more difficult task constraints are reflections of experience in exploiting the dynamics of the perceptual-motor workspace.

UR - http://www.scopus.com/inward/record.url?scp=0000414373&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000414373&partnerID=8YFLogxK

U2 - 10.1016/0167-9457(94)90022-1

DO - 10.1016/0167-9457(94)90022-1

M3 - Article

AN - SCOPUS:0000414373

VL - 13

SP - 861

EP - 875

JO - Human Movement Science

JF - Human Movement Science

SN - 0167-9457

IS - 6

ER -