Foot Placement Alters the Mechanisms of Postural Control while Standing and Reaching

Jason C. Gillette, James Abbas

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This study investigated the effects of altering foot placement on the strategies used by able-bodied subjects to perform reaching tasks while standing. The motivation for this study was to consider the results in the context of a person with a spinal cord injury using a functional neuromuscular stimulation (FNS) system to stand while reaching. Three foot placement conditions were compared as subjects reached to the left, right, and center. Centers of pressure (COP), joint angles, and joint moments were calculated as postural parameters using force platform and video marker data. Side-by-side and wide foot placements resulted in similar postural parameters. In contrast, the modified tandem stance (feet spaced at pelvic width with one foot shifted forward) resulted in anterior/posterior COP excursions that were larger in magnitude and more consistent across reach directions when compared to the other foot placement conditions. Furthermore, the movement patterns used during the tandem stance were more consistent and may be more readily achievable with FNS than the movement patterns utilized with the side-by-side and wide stances. These results suggest that the modified tandem stance may enhance the functionality of FNS standing systems and may also be useful in other standing rehabilitation programs.

Original languageEnglish (US)
Pages (from-to)377-385
Number of pages9
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
Volume11
Issue number4
DOIs
StatePublished - Dec 2003

Fingerprint

Foot
Patient rehabilitation
Joints
Pressure
Spinal Cord Injuries
Rehabilitation
Direction compound

Keywords

  • Biomechanics
  • Kinematics
  • Neuromuscular stimulation
  • Posture
  • Spinal-cord injury (SCI)

ASJC Scopus subject areas

  • Rehabilitation
  • Biophysics
  • Bioengineering
  • Health Professions(all)

Cite this

Foot Placement Alters the Mechanisms of Postural Control while Standing and Reaching. / Gillette, Jason C.; Abbas, James.

In: IEEE Transactions on Neural Systems and Rehabilitation Engineering, Vol. 11, No. 4, 12.2003, p. 377-385.

Research output: Contribution to journalArticle

@article{40c726a5e30d4dd6b8dc1362586a968e,
title = "Foot Placement Alters the Mechanisms of Postural Control while Standing and Reaching",
abstract = "This study investigated the effects of altering foot placement on the strategies used by able-bodied subjects to perform reaching tasks while standing. The motivation for this study was to consider the results in the context of a person with a spinal cord injury using a functional neuromuscular stimulation (FNS) system to stand while reaching. Three foot placement conditions were compared as subjects reached to the left, right, and center. Centers of pressure (COP), joint angles, and joint moments were calculated as postural parameters using force platform and video marker data. Side-by-side and wide foot placements resulted in similar postural parameters. In contrast, the modified tandem stance (feet spaced at pelvic width with one foot shifted forward) resulted in anterior/posterior COP excursions that were larger in magnitude and more consistent across reach directions when compared to the other foot placement conditions. Furthermore, the movement patterns used during the tandem stance were more consistent and may be more readily achievable with FNS than the movement patterns utilized with the side-by-side and wide stances. These results suggest that the modified tandem stance may enhance the functionality of FNS standing systems and may also be useful in other standing rehabilitation programs.",
keywords = "Biomechanics, Kinematics, Neuromuscular stimulation, Posture, Spinal-cord injury (SCI)",
author = "Gillette, {Jason C.} and James Abbas",
year = "2003",
month = "12",
doi = "10.1109/TNSRE.2003.819790",
language = "English (US)",
volume = "11",
pages = "377--385",
journal = "IEEE Transactions on Neural Systems and Rehabilitation Engineering",
issn = "1534-4320",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

TY - JOUR

T1 - Foot Placement Alters the Mechanisms of Postural Control while Standing and Reaching

AU - Gillette, Jason C.

AU - Abbas, James

PY - 2003/12

Y1 - 2003/12

N2 - This study investigated the effects of altering foot placement on the strategies used by able-bodied subjects to perform reaching tasks while standing. The motivation for this study was to consider the results in the context of a person with a spinal cord injury using a functional neuromuscular stimulation (FNS) system to stand while reaching. Three foot placement conditions were compared as subjects reached to the left, right, and center. Centers of pressure (COP), joint angles, and joint moments were calculated as postural parameters using force platform and video marker data. Side-by-side and wide foot placements resulted in similar postural parameters. In contrast, the modified tandem stance (feet spaced at pelvic width with one foot shifted forward) resulted in anterior/posterior COP excursions that were larger in magnitude and more consistent across reach directions when compared to the other foot placement conditions. Furthermore, the movement patterns used during the tandem stance were more consistent and may be more readily achievable with FNS than the movement patterns utilized with the side-by-side and wide stances. These results suggest that the modified tandem stance may enhance the functionality of FNS standing systems and may also be useful in other standing rehabilitation programs.

AB - This study investigated the effects of altering foot placement on the strategies used by able-bodied subjects to perform reaching tasks while standing. The motivation for this study was to consider the results in the context of a person with a spinal cord injury using a functional neuromuscular stimulation (FNS) system to stand while reaching. Three foot placement conditions were compared as subjects reached to the left, right, and center. Centers of pressure (COP), joint angles, and joint moments were calculated as postural parameters using force platform and video marker data. Side-by-side and wide foot placements resulted in similar postural parameters. In contrast, the modified tandem stance (feet spaced at pelvic width with one foot shifted forward) resulted in anterior/posterior COP excursions that were larger in magnitude and more consistent across reach directions when compared to the other foot placement conditions. Furthermore, the movement patterns used during the tandem stance were more consistent and may be more readily achievable with FNS than the movement patterns utilized with the side-by-side and wide stances. These results suggest that the modified tandem stance may enhance the functionality of FNS standing systems and may also be useful in other standing rehabilitation programs.

KW - Biomechanics

KW - Kinematics

KW - Neuromuscular stimulation

KW - Posture

KW - Spinal-cord injury (SCI)

UR - http://www.scopus.com/inward/record.url?scp=1642539080&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642539080&partnerID=8YFLogxK

U2 - 10.1109/TNSRE.2003.819790

DO - 10.1109/TNSRE.2003.819790

M3 - Article

VL - 11

SP - 377

EP - 385

JO - IEEE Transactions on Neural Systems and Rehabilitation Engineering

JF - IEEE Transactions on Neural Systems and Rehabilitation Engineering

SN - 1534-4320

IS - 4

ER -