Subjective vs objective predictors of functional knee joint performance in anterior cruciate ligament-reconstructed patients: Do we need both?

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

BACKGROUND: Associations between objective and subjective measures of knee function may facilitate rehabilitation in ACL-patients.

AIM: The aim of this study is to investigate if a test-battery of functional and/or muscle outcomes are associated with Knee osteoarthritis outcome score (KOOS) subscales (Sport/Rec and QOL) in ACL-reconstructed patients.

METHODS: 23 hamstring auto-graft ACL-reconstructed men (mean age: 27.2 standard deviation 7.5years, BMI: 25.4 standard deviation 3.2 time since surgery: 27 standard deviation 7months) completed KOOS-questionnaire and an objective test-battery: (i) one-leg maximal jump for distance (OLJD), isometric maximal voluntary contraction (MVC) for (ii) knee extensors and (iii) flexors, and (iv) maximal counter movement jump (CMJ). Sagittal kinematic data were recorded during CMJ using a 6-camera Vicon MX system. Multilevel linear regression analysis was used to determine the strength of associations between KOOS parameters (Sport/Rec and QOL) that a priori were defined as dependent variables and 4 models of independent outcomes from the test-battery.

RESULTS: Moderate associations between OLJD and Sport/Rec (r(2)=0.26, p<0.01) and QOL (r(2)=0.26, p<0.01) were observed (Model 1). Adding knee extensor or flexor MVC to the analysis (Model 2) increased the strength of the associations (up to r(2)=0.53, p<0.01, and r(2)=0.31, p=0.02 for Sport/Rec and QOL, respectively). Adding both knee extensor and knee flexor MVC to the analysis (Model 3) did not improve the regression model and only minor increases were observed when including kinematic data of CMJ (Model 4).

CONCLUSION: Moderate-to-large proportion (31-53%) of the variation in KOOS was explained by OLJD and MVC which may add to design effective future rehabilitation interventions for ACL-patients.

OriginalsprogEngelsk
TidsskriftKnee
Vol/bind21
Udgave nummer6
Sider (fra-til)1139-1144
ISSN0968-0160
DOI
StatusUdgivet - 25. okt. 2014

Fingeraftryk

Anterior Cruciate Ligament
Knee Joint
Knee Osteoarthritis
Knee
Leg
Linear Models
Regression Analysis
Muscles

Citer dette

@article{301182d5abf24e619d4b8826c8ec00f1,
title = "Subjective vs objective predictors of functional knee joint performance in anterior cruciate ligament-reconstructed patients: Do we need both?",
abstract = "BACKGROUND: Associations between objective and subjective measures of knee function may facilitate rehabilitation in ACL-patients.AIM: The aim of this study is to investigate if a test-battery of functional and/or muscle outcomes are associated with Knee osteoarthritis outcome score (KOOS) subscales (Sport/Rec and QOL) in ACL-reconstructed patients.METHODS: 23 hamstring auto-graft ACL-reconstructed men (mean age: 27.2 standard deviation 7.5years, BMI: 25.4 standard deviation 3.2 time since surgery: 27 standard deviation 7months) completed KOOS-questionnaire and an objective test-battery: (i) one-leg maximal jump for distance (OLJD), isometric maximal voluntary contraction (MVC) for (ii) knee extensors and (iii) flexors, and (iv) maximal counter movement jump (CMJ). Sagittal kinematic data were recorded during CMJ using a 6-camera Vicon MX system. Multilevel linear regression analysis was used to determine the strength of associations between KOOS parameters (Sport/Rec and QOL) that a priori were defined as dependent variables and 4 models of independent outcomes from the test-battery.RESULTS: Moderate associations between OLJD and Sport/Rec (r(2)=0.26, p<0.01) and QOL (r(2)=0.26, p<0.01) were observed (Model 1). Adding knee extensor or flexor MVC to the analysis (Model 2) increased the strength of the associations (up to r(2)=0.53, p<0.01, and r(2)=0.31, p=0.02 for Sport/Rec and QOL, respectively). Adding both knee extensor and knee flexor MVC to the analysis (Model 3) did not improve the regression model and only minor increases were observed when including kinematic data of CMJ (Model 4).CONCLUSION: Moderate-to-large proportion (31-53{\%}) of the variation in KOOS was explained by OLJD and MVC which may add to design effective future rehabilitation interventions for ACL-patients.",
author = "Anders Holsgaard-Larsen and Carsten Jensen and Per Aagaard",
note = "Copyright {\circledC} 2014 Elsevier B.V. All rights reserved.",
year = "2014",
month = "10",
day = "25",
doi = "10.1016/j.knee.2014.09.004",
language = "English",
volume = "21",
pages = "1139--1144",
journal = "Knee",
issn = "0968-0160",
publisher = "Elsevier",
number = "6",

}

Subjective vs objective predictors of functional knee joint performance in anterior cruciate ligament-reconstructed patients : Do we need both? / Holsgaard-Larsen, Anders; Jensen, Carsten; Aagaard, Per.

I: Knee, Bind 21, Nr. 6, 25.10.2014, s. 1139-1144.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Subjective vs objective predictors of functional knee joint performance in anterior cruciate ligament-reconstructed patients

T2 - Do we need both?

AU - Holsgaard-Larsen, Anders

AU - Jensen, Carsten

AU - Aagaard, Per

N1 - Copyright © 2014 Elsevier B.V. All rights reserved.

PY - 2014/10/25

Y1 - 2014/10/25

N2 - BACKGROUND: Associations between objective and subjective measures of knee function may facilitate rehabilitation in ACL-patients.AIM: The aim of this study is to investigate if a test-battery of functional and/or muscle outcomes are associated with Knee osteoarthritis outcome score (KOOS) subscales (Sport/Rec and QOL) in ACL-reconstructed patients.METHODS: 23 hamstring auto-graft ACL-reconstructed men (mean age: 27.2 standard deviation 7.5years, BMI: 25.4 standard deviation 3.2 time since surgery: 27 standard deviation 7months) completed KOOS-questionnaire and an objective test-battery: (i) one-leg maximal jump for distance (OLJD), isometric maximal voluntary contraction (MVC) for (ii) knee extensors and (iii) flexors, and (iv) maximal counter movement jump (CMJ). Sagittal kinematic data were recorded during CMJ using a 6-camera Vicon MX system. Multilevel linear regression analysis was used to determine the strength of associations between KOOS parameters (Sport/Rec and QOL) that a priori were defined as dependent variables and 4 models of independent outcomes from the test-battery.RESULTS: Moderate associations between OLJD and Sport/Rec (r(2)=0.26, p<0.01) and QOL (r(2)=0.26, p<0.01) were observed (Model 1). Adding knee extensor or flexor MVC to the analysis (Model 2) increased the strength of the associations (up to r(2)=0.53, p<0.01, and r(2)=0.31, p=0.02 for Sport/Rec and QOL, respectively). Adding both knee extensor and knee flexor MVC to the analysis (Model 3) did not improve the regression model and only minor increases were observed when including kinematic data of CMJ (Model 4).CONCLUSION: Moderate-to-large proportion (31-53%) of the variation in KOOS was explained by OLJD and MVC which may add to design effective future rehabilitation interventions for ACL-patients.

AB - BACKGROUND: Associations between objective and subjective measures of knee function may facilitate rehabilitation in ACL-patients.AIM: The aim of this study is to investigate if a test-battery of functional and/or muscle outcomes are associated with Knee osteoarthritis outcome score (KOOS) subscales (Sport/Rec and QOL) in ACL-reconstructed patients.METHODS: 23 hamstring auto-graft ACL-reconstructed men (mean age: 27.2 standard deviation 7.5years, BMI: 25.4 standard deviation 3.2 time since surgery: 27 standard deviation 7months) completed KOOS-questionnaire and an objective test-battery: (i) one-leg maximal jump for distance (OLJD), isometric maximal voluntary contraction (MVC) for (ii) knee extensors and (iii) flexors, and (iv) maximal counter movement jump (CMJ). Sagittal kinematic data were recorded during CMJ using a 6-camera Vicon MX system. Multilevel linear regression analysis was used to determine the strength of associations between KOOS parameters (Sport/Rec and QOL) that a priori were defined as dependent variables and 4 models of independent outcomes from the test-battery.RESULTS: Moderate associations between OLJD and Sport/Rec (r(2)=0.26, p<0.01) and QOL (r(2)=0.26, p<0.01) were observed (Model 1). Adding knee extensor or flexor MVC to the analysis (Model 2) increased the strength of the associations (up to r(2)=0.53, p<0.01, and r(2)=0.31, p=0.02 for Sport/Rec and QOL, respectively). Adding both knee extensor and knee flexor MVC to the analysis (Model 3) did not improve the regression model and only minor increases were observed when including kinematic data of CMJ (Model 4).CONCLUSION: Moderate-to-large proportion (31-53%) of the variation in KOOS was explained by OLJD and MVC which may add to design effective future rehabilitation interventions for ACL-patients.

U2 - 10.1016/j.knee.2014.09.004

DO - 10.1016/j.knee.2014.09.004

M3 - Journal article

C2 - 25440186

VL - 21

SP - 1139

EP - 1144

JO - Knee

JF - Knee

SN - 0968-0160

IS - 6

ER -