Muscle co-contraction during gait in individuals with articular cartilage defects in the knee

Louise M. Thoma, Michael P. McNally, Ajit M. Chaudhari, David C. Flanigan, Thomas Best, Robert A. Siston, Laura C. Schmitt

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Increased muscle co-contraction during gait is common in individuals with knee pathology, and worrisome as it is known to amplify tibiofemoral compressive forces. While knees with articular cartilage defects (ACD) are more vulnerable to compressive forces, muscle co-contraction has never been reported in this population. The purpose of this study was to evaluate the extent to which individuals with ACDs in the knee demonstrate elevated quadriceps to hamstrings muscle co-contraction on the involved limb during gait compared to the uninvolved limb and to healthy controls. We also explored the impact of participant characteristics and knee impairments on co-contraction. Twenty-nine individuals with full-thickness knee ACDs (ACD group) and 19 healthy adults (control group) participated in this study. Participants performed five gait trials at self-selected speed, during which activity of the quadriceps and hamstrings muscles were collected with surface electromyography. Three-dimensional motion capture was used to define phases of gait. Quadriceps strength and self-reported outcomes were also assessed in the same session. There were no differences in quadriceps: hamstrings co-contraction between the ACD and control groups, or between the involved and uninvolved limb for the ACD group. For both ACD and control groups, co-contraction was highest in early stance and lowest in late stance. Quadriceps strength was consistently the strongest predictor of muscle co-contraction in both the ACD and the control groups, with individuals with lower strength demonstrating greater co-contraction. Further study is needed to understand the effect of increased muscle co-contraction on joint compressive forces in the presence of varied quadriceps strength.

Original languageEnglish (US)
Pages (from-to)68-73
Number of pages6
JournalGait and Posture
Volume48
DOIs
StatePublished - Jan 1 2016
Externally publishedYes

Fingerprint

Articular Cartilage
Muscle Contraction
Gait
Knee
Control Groups
Extremities
Quadriceps Muscle
Electromyography
Pathology
Population

Keywords

  • Chondral defects
  • Electromyography
  • Quadriceps strength

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

Cite this

Thoma, L. M., McNally, M. P., Chaudhari, A. M., Flanigan, D. C., Best, T., Siston, R. A., & Schmitt, L. C. (2016). Muscle co-contraction during gait in individuals with articular cartilage defects in the knee. Gait and Posture, 48, 68-73. https://doi.org/10.1016/j.gaitpost.2016.04.021

Muscle co-contraction during gait in individuals with articular cartilage defects in the knee. / Thoma, Louise M.; McNally, Michael P.; Chaudhari, Ajit M.; Flanigan, David C.; Best, Thomas; Siston, Robert A.; Schmitt, Laura C.

In: Gait and Posture, Vol. 48, 01.01.2016, p. 68-73.

Research output: Contribution to journalArticle

Thoma, LM, McNally, MP, Chaudhari, AM, Flanigan, DC, Best, T, Siston, RA & Schmitt, LC 2016, 'Muscle co-contraction during gait in individuals with articular cartilage defects in the knee', Gait and Posture, vol. 48, pp. 68-73. https://doi.org/10.1016/j.gaitpost.2016.04.021
Thoma, Louise M. ; McNally, Michael P. ; Chaudhari, Ajit M. ; Flanigan, David C. ; Best, Thomas ; Siston, Robert A. ; Schmitt, Laura C. / Muscle co-contraction during gait in individuals with articular cartilage defects in the knee. In: Gait and Posture. 2016 ; Vol. 48. pp. 68-73.
@article{a0f98f2601aa4f8b9eaaf268de1bfc5a,
title = "Muscle co-contraction during gait in individuals with articular cartilage defects in the knee",
abstract = "Increased muscle co-contraction during gait is common in individuals with knee pathology, and worrisome as it is known to amplify tibiofemoral compressive forces. While knees with articular cartilage defects (ACD) are more vulnerable to compressive forces, muscle co-contraction has never been reported in this population. The purpose of this study was to evaluate the extent to which individuals with ACDs in the knee demonstrate elevated quadriceps to hamstrings muscle co-contraction on the involved limb during gait compared to the uninvolved limb and to healthy controls. We also explored the impact of participant characteristics and knee impairments on co-contraction. Twenty-nine individuals with full-thickness knee ACDs (ACD group) and 19 healthy adults (control group) participated in this study. Participants performed five gait trials at self-selected speed, during which activity of the quadriceps and hamstrings muscles were collected with surface electromyography. Three-dimensional motion capture was used to define phases of gait. Quadriceps strength and self-reported outcomes were also assessed in the same session. There were no differences in quadriceps: hamstrings co-contraction between the ACD and control groups, or between the involved and uninvolved limb for the ACD group. For both ACD and control groups, co-contraction was highest in early stance and lowest in late stance. Quadriceps strength was consistently the strongest predictor of muscle co-contraction in both the ACD and the control groups, with individuals with lower strength demonstrating greater co-contraction. Further study is needed to understand the effect of increased muscle co-contraction on joint compressive forces in the presence of varied quadriceps strength.",
keywords = "Chondral defects, Electromyography, Quadriceps strength",
author = "Thoma, {Louise M.} and McNally, {Michael P.} and Chaudhari, {Ajit M.} and Flanigan, {David C.} and Thomas Best and Siston, {Robert A.} and Schmitt, {Laura C.}",
year = "2016",
month = "1",
day = "1",
doi = "10.1016/j.gaitpost.2016.04.021",
language = "English (US)",
volume = "48",
pages = "68--73",
journal = "Gait and Posture",
issn = "0966-6362",
publisher = "Elsevier",

}

TY - JOUR

T1 - Muscle co-contraction during gait in individuals with articular cartilage defects in the knee

AU - Thoma, Louise M.

AU - McNally, Michael P.

AU - Chaudhari, Ajit M.

AU - Flanigan, David C.

AU - Best, Thomas

AU - Siston, Robert A.

AU - Schmitt, Laura C.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Increased muscle co-contraction during gait is common in individuals with knee pathology, and worrisome as it is known to amplify tibiofemoral compressive forces. While knees with articular cartilage defects (ACD) are more vulnerable to compressive forces, muscle co-contraction has never been reported in this population. The purpose of this study was to evaluate the extent to which individuals with ACDs in the knee demonstrate elevated quadriceps to hamstrings muscle co-contraction on the involved limb during gait compared to the uninvolved limb and to healthy controls. We also explored the impact of participant characteristics and knee impairments on co-contraction. Twenty-nine individuals with full-thickness knee ACDs (ACD group) and 19 healthy adults (control group) participated in this study. Participants performed five gait trials at self-selected speed, during which activity of the quadriceps and hamstrings muscles were collected with surface electromyography. Three-dimensional motion capture was used to define phases of gait. Quadriceps strength and self-reported outcomes were also assessed in the same session. There were no differences in quadriceps: hamstrings co-contraction between the ACD and control groups, or between the involved and uninvolved limb for the ACD group. For both ACD and control groups, co-contraction was highest in early stance and lowest in late stance. Quadriceps strength was consistently the strongest predictor of muscle co-contraction in both the ACD and the control groups, with individuals with lower strength demonstrating greater co-contraction. Further study is needed to understand the effect of increased muscle co-contraction on joint compressive forces in the presence of varied quadriceps strength.

AB - Increased muscle co-contraction during gait is common in individuals with knee pathology, and worrisome as it is known to amplify tibiofemoral compressive forces. While knees with articular cartilage defects (ACD) are more vulnerable to compressive forces, muscle co-contraction has never been reported in this population. The purpose of this study was to evaluate the extent to which individuals with ACDs in the knee demonstrate elevated quadriceps to hamstrings muscle co-contraction on the involved limb during gait compared to the uninvolved limb and to healthy controls. We also explored the impact of participant characteristics and knee impairments on co-contraction. Twenty-nine individuals with full-thickness knee ACDs (ACD group) and 19 healthy adults (control group) participated in this study. Participants performed five gait trials at self-selected speed, during which activity of the quadriceps and hamstrings muscles were collected with surface electromyography. Three-dimensional motion capture was used to define phases of gait. Quadriceps strength and self-reported outcomes were also assessed in the same session. There were no differences in quadriceps: hamstrings co-contraction between the ACD and control groups, or between the involved and uninvolved limb for the ACD group. For both ACD and control groups, co-contraction was highest in early stance and lowest in late stance. Quadriceps strength was consistently the strongest predictor of muscle co-contraction in both the ACD and the control groups, with individuals with lower strength demonstrating greater co-contraction. Further study is needed to understand the effect of increased muscle co-contraction on joint compressive forces in the presence of varied quadriceps strength.

KW - Chondral defects

KW - Electromyography

KW - Quadriceps strength

UR - http://www.scopus.com/inward/record.url?scp=84979913343&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84979913343&partnerID=8YFLogxK

U2 - 10.1016/j.gaitpost.2016.04.021

DO - 10.1016/j.gaitpost.2016.04.021

M3 - Article

VL - 48

SP - 68

EP - 73

JO - Gait and Posture

JF - Gait and Posture

SN - 0966-6362

ER -