Effects of limb loading on gait initiation in persons with moderate hemiparesis

Mansoo Ko, Mark D. Bishop, Andrea L. Behrman

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Purpose: To examine the immediate effect of symmetrical weight bearing (SWB) on temporal events of gait initiation (GI) patterns and timing and amplitude of lower distal limb muscles activity during GI in persons with hemiparesis. Method: The study was a within-subjects design. Twelve persons with hemiparesis were recruited from the Veterans Affairs Brain Rehabilitation Research Center at the Malcom Randall Veterans Affairs, Gainesville, Florida. GI trials were performed from 4 beginning limb-loading conditions presented in a randomized order: (1) GI with the paretic limb during natural (asymmetrical) weight bearing (NWB); (2) GI with the nonparetic limb during NWB; (3) GI with the paretic limb during SWB; and (4) GI with the nonparetic limb during SWB. Temporal events of ground reaction forces (GRFs) and timing and amplitude of distal muscles activity were measured during GI trials in a motion analysis laboratory. Results: There were no significant effects of SWB on the temporal events of GRFs and timing and amplitude of distal muscles activity when initiating gait with the paretic limb. Onset of tibilais anterior (TA) muscle was delayed significantly with less amplitude when initiating gait with the paretic limb in both NWB and SWB conditions. However, when initiating gait with the nonparetic limb, TA muscle on the paretic limb was activated normally with greater amplitude in both NWB and SWB conditions. Conclusion: Initiating gait with the nonparetic limb as pregait activity may more effectively challenge the dynamic balance for a symmetrical gait pattern than the standard SWB in persons with hemiparesis.

Original languageEnglish (US)
Pages (from-to)258-268
Number of pages11
JournalTopics in Stroke Rehabilitation
Volume18
Issue number3
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

Fingerprint

Paresis
Gait
Extremities
Weight-Bearing
Muscles
Veterans
Rehabilitation Centers
Lower Extremity

Keywords

  • gait initiation
  • physical therapy
  • rehabilitation
  • stroke
  • symmetry

ASJC Scopus subject areas

  • Clinical Neurology
  • Rehabilitation
  • Community and Home Care

Cite this

Effects of limb loading on gait initiation in persons with moderate hemiparesis. / Ko, Mansoo; Bishop, Mark D.; Behrman, Andrea L.

In: Topics in Stroke Rehabilitation, Vol. 18, No. 3, 01.01.2011, p. 258-268.

Research output: Contribution to journalArticle

Ko, Mansoo ; Bishop, Mark D. ; Behrman, Andrea L. / Effects of limb loading on gait initiation in persons with moderate hemiparesis. In: Topics in Stroke Rehabilitation. 2011 ; Vol. 18, No. 3. pp. 258-268.
@article{a752a2d0f5494766b52ebea66600ad66,
title = "Effects of limb loading on gait initiation in persons with moderate hemiparesis",
abstract = "Purpose: To examine the immediate effect of symmetrical weight bearing (SWB) on temporal events of gait initiation (GI) patterns and timing and amplitude of lower distal limb muscles activity during GI in persons with hemiparesis. Method: The study was a within-subjects design. Twelve persons with hemiparesis were recruited from the Veterans Affairs Brain Rehabilitation Research Center at the Malcom Randall Veterans Affairs, Gainesville, Florida. GI trials were performed from 4 beginning limb-loading conditions presented in a randomized order: (1) GI with the paretic limb during natural (asymmetrical) weight bearing (NWB); (2) GI with the nonparetic limb during NWB; (3) GI with the paretic limb during SWB; and (4) GI with the nonparetic limb during SWB. Temporal events of ground reaction forces (GRFs) and timing and amplitude of distal muscles activity were measured during GI trials in a motion analysis laboratory. Results: There were no significant effects of SWB on the temporal events of GRFs and timing and amplitude of distal muscles activity when initiating gait with the paretic limb. Onset of tibilais anterior (TA) muscle was delayed significantly with less amplitude when initiating gait with the paretic limb in both NWB and SWB conditions. However, when initiating gait with the nonparetic limb, TA muscle on the paretic limb was activated normally with greater amplitude in both NWB and SWB conditions. Conclusion: Initiating gait with the nonparetic limb as pregait activity may more effectively challenge the dynamic balance for a symmetrical gait pattern than the standard SWB in persons with hemiparesis.",
keywords = "gait initiation, physical therapy, rehabilitation, stroke, symmetry",
author = "Mansoo Ko and Bishop, {Mark D.} and Behrman, {Andrea L.}",
year = "2011",
month = "1",
day = "1",
doi = "10.1310/tsr1803-258",
language = "English (US)",
volume = "18",
pages = "258--268",
journal = "Topics in Stroke Rehabilitation",
issn = "1074-9357",
publisher = "Thomas Land Publishers Inc.",
number = "3",

}

TY - JOUR

T1 - Effects of limb loading on gait initiation in persons with moderate hemiparesis

AU - Ko, Mansoo

AU - Bishop, Mark D.

AU - Behrman, Andrea L.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Purpose: To examine the immediate effect of symmetrical weight bearing (SWB) on temporal events of gait initiation (GI) patterns and timing and amplitude of lower distal limb muscles activity during GI in persons with hemiparesis. Method: The study was a within-subjects design. Twelve persons with hemiparesis were recruited from the Veterans Affairs Brain Rehabilitation Research Center at the Malcom Randall Veterans Affairs, Gainesville, Florida. GI trials were performed from 4 beginning limb-loading conditions presented in a randomized order: (1) GI with the paretic limb during natural (asymmetrical) weight bearing (NWB); (2) GI with the nonparetic limb during NWB; (3) GI with the paretic limb during SWB; and (4) GI with the nonparetic limb during SWB. Temporal events of ground reaction forces (GRFs) and timing and amplitude of distal muscles activity were measured during GI trials in a motion analysis laboratory. Results: There were no significant effects of SWB on the temporal events of GRFs and timing and amplitude of distal muscles activity when initiating gait with the paretic limb. Onset of tibilais anterior (TA) muscle was delayed significantly with less amplitude when initiating gait with the paretic limb in both NWB and SWB conditions. However, when initiating gait with the nonparetic limb, TA muscle on the paretic limb was activated normally with greater amplitude in both NWB and SWB conditions. Conclusion: Initiating gait with the nonparetic limb as pregait activity may more effectively challenge the dynamic balance for a symmetrical gait pattern than the standard SWB in persons with hemiparesis.

AB - Purpose: To examine the immediate effect of symmetrical weight bearing (SWB) on temporal events of gait initiation (GI) patterns and timing and amplitude of lower distal limb muscles activity during GI in persons with hemiparesis. Method: The study was a within-subjects design. Twelve persons with hemiparesis were recruited from the Veterans Affairs Brain Rehabilitation Research Center at the Malcom Randall Veterans Affairs, Gainesville, Florida. GI trials were performed from 4 beginning limb-loading conditions presented in a randomized order: (1) GI with the paretic limb during natural (asymmetrical) weight bearing (NWB); (2) GI with the nonparetic limb during NWB; (3) GI with the paretic limb during SWB; and (4) GI with the nonparetic limb during SWB. Temporal events of ground reaction forces (GRFs) and timing and amplitude of distal muscles activity were measured during GI trials in a motion analysis laboratory. Results: There were no significant effects of SWB on the temporal events of GRFs and timing and amplitude of distal muscles activity when initiating gait with the paretic limb. Onset of tibilais anterior (TA) muscle was delayed significantly with less amplitude when initiating gait with the paretic limb in both NWB and SWB conditions. However, when initiating gait with the nonparetic limb, TA muscle on the paretic limb was activated normally with greater amplitude in both NWB and SWB conditions. Conclusion: Initiating gait with the nonparetic limb as pregait activity may more effectively challenge the dynamic balance for a symmetrical gait pattern than the standard SWB in persons with hemiparesis.

KW - gait initiation

KW - physical therapy

KW - rehabilitation

KW - stroke

KW - symmetry

UR - http://www.scopus.com/inward/record.url?scp=79958132658&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958132658&partnerID=8YFLogxK

U2 - 10.1310/tsr1803-258

DO - 10.1310/tsr1803-258

M3 - Article

C2 - 21642063

AN - SCOPUS:79958132658

VL - 18

SP - 258

EP - 268

JO - Topics in Stroke Rehabilitation

JF - Topics in Stroke Rehabilitation

SN - 1074-9357

IS - 3

ER -