Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction

Timothy Exell; Joe Moore; Jenny Burbage; David Mullineaux

Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction

Timothy Exell, Joe Moore, Jenny Burbage, David Mullineaux

School of Psychology, Sport and Health Sciences

University of Lincoln

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The aim of this study was to compare isometric strength asymmetry in participants that have previously undergone anterior cruciate ligament (ACL) reconstruction and a healthy control group. Three-dimensional force data (1000 Hz) were collected from 21 ACL (3.2 ± 1.8 years post-surgery) and 21 control participants during maximal isometric contractions. Peak knee flexion force displayed significant asymmetry differences between groups, with ACL participants showing greater asymmetry (7.6 %) than the control group (0.1 %). No significant asymmetry differences were found between groups for peak extension, adduction and internal rotation force. Results suggest that following ACL reconstruction and rehabilitation, external force production during knee flexion is significantly less on the affected side than the uninjured side, which has implications on rehabilitation monitoring.

Original language	English
Title of host publication	Proceedings of the 38th Conference of the International Society of Biomechanics in Sports
Publisher	Northern Michigan University
Number of pages	4
Publication status	Published - 20 Jul 2020
Event	38th International Society of Biomechanics in Sport Conference - Online Duration: 20 Jul 2020 → 24 Jul 2020

Conference

Conference	38th International Society of Biomechanics in Sport Conference
Period	20/07/20 → 24/07/20

Keywords

rehabilitation
strength
deficit

Access to Document

Lower limb asymmetry during rehabilitation from anterior cruciate ligament (ACL) reconstruction
Exell, T. (PI)
The Royal Society
14/09/18 → 14/09/22
Project: Research

Cite this

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title = "Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction",

abstract = "The aim of this study was to compare isometric strength asymmetry in participants that have previously undergone anterior cruciate ligament (ACL) reconstruction and a healthy control group. Three-dimensional force data (1000 Hz) were collected from 21 ACL (3.2 ± 1.8 years post-surgery) and 21 control participants during maximal isometric contractions. Peak knee flexion force displayed significant asymmetry differences between groups, with ACL participants showing greater asymmetry (7.6 %) than the control group (0.1 %). No significant asymmetry differences were found between groups for peak extension, adduction and internal rotation force. Results suggest that following ACL reconstruction and rehabilitation, external force production during knee flexion is significantly less on the affected side than the uninjured side, which has implications on rehabilitation monitoring. ",

keywords = "rehabilitation, strength, deficit",

author = "Timothy Exell and Joe Moore and Jenny Burbage and David Mullineaux",

note = "noissn; 38th International Society of Biomechanics in Sport Conference ; Conference date: 20-07-2020 Through 24-07-2020",

year = "2020",

month = jul,

day = "20",

language = "English",

booktitle = "Proceedings of the 38th Conference of the International Society of Biomechanics in Sports",

publisher = "Northern Michigan University",

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}

Exell, T , Moore, J , Burbage, J & Mullineaux, D 2020, Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction. in Proceedings of the 38th Conference of the International Society of Biomechanics in Sports. Northern Michigan University, 38th International Society of Biomechanics in Sport Conference, 20/07/20. <https://commons.nmu.edu/isbs/vol38/iss1/161/>

TY - GEN

T1 - Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction

AU - Exell, Timothy

AU - Moore, Joe

AU - Burbage, Jenny

AU - Mullineaux, David

N1 - noissn

PY - 2020/7/20

Y1 - 2020/7/20

N2 - The aim of this study was to compare isometric strength asymmetry in participants that have previously undergone anterior cruciate ligament (ACL) reconstruction and a healthy control group. Three-dimensional force data (1000 Hz) were collected from 21 ACL (3.2 ± 1.8 years post-surgery) and 21 control participants during maximal isometric contractions. Peak knee flexion force displayed significant asymmetry differences between groups, with ACL participants showing greater asymmetry (7.6 %) than the control group (0.1 %). No significant asymmetry differences were found between groups for peak extension, adduction and internal rotation force. Results suggest that following ACL reconstruction and rehabilitation, external force production during knee flexion is significantly less on the affected side than the uninjured side, which has implications on rehabilitation monitoring.

AB - The aim of this study was to compare isometric strength asymmetry in participants that have previously undergone anterior cruciate ligament (ACL) reconstruction and a healthy control group. Three-dimensional force data (1000 Hz) were collected from 21 ACL (3.2 ± 1.8 years post-surgery) and 21 control participants during maximal isometric contractions. Peak knee flexion force displayed significant asymmetry differences between groups, with ACL participants showing greater asymmetry (7.6 %) than the control group (0.1 %). No significant asymmetry differences were found between groups for peak extension, adduction and internal rotation force. Results suggest that following ACL reconstruction and rehabilitation, external force production during knee flexion is significantly less on the affected side than the uninjured side, which has implications on rehabilitation monitoring.

KW - rehabilitation

KW - strength

KW - deficit

M3 - Conference contribution

BT - Proceedings of the 38th Conference of the International Society of Biomechanics in Sports

PB - Northern Michigan University

T2 - 38th International Society of Biomechanics in Sport Conference

Y2 - 20 July 2020 through 24 July 2020

ER -

Force asymmetry during isometric contractions following anterior cruciate ligament reconstruction

Abstract

Conference

Keywords

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Projects

Lower limb asymmetry during rehabilitation from anterior cruciate ligament (ACL) reconstruction

Cite this