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Agreement Between Isokinetic Dynamometer and Hand-held Isometric Dynamometer as Measures to Detect Lower Limb Asymmetry in Muscle Torque After Anterior Cruciate Ligament Reconstruction

Ivarsson, Angelica and Cronström, Anna LU (2022) In International Journal of Sports Physical Therapy 17(7). p.1307-1317
Abstract

Two commonly used instruments to assess muscle strength after anterior cruciate ligament reconstruction are the isokinetic dynamometer, which measures isokinetic torque and the hand-held dynamometer, which measures isometric torque. Isokinetic dynamometers are considered superior to other instruments but may not be commonly used in clinical settings. Hand-held dynamometers are small, portable, and more clinically applicable devices. Purpose The purpose of this study was to assess agreement between a hand-held dynamometer and an isokinetic dynamometer, used to assess lower limb symmetry in knee muscle torque one year after anterior cruciate ligament (ACL) reconstruction. Study design Cross-sectional measurement study Methods Seventy-two... (More)

Two commonly used instruments to assess muscle strength after anterior cruciate ligament reconstruction are the isokinetic dynamometer, which measures isokinetic torque and the hand-held dynamometer, which measures isometric torque. Isokinetic dynamometers are considered superior to other instruments but may not be commonly used in clinical settings. Hand-held dynamometers are small, portable, and more clinically applicable devices. Purpose The purpose of this study was to assess agreement between a hand-held dynamometer and an isokinetic dynamometer, used to assess lower limb symmetry in knee muscle torque one year after anterior cruciate ligament (ACL) reconstruction. Study design Cross-sectional measurement study Methods Seventy-two participants who had undergone ACL reconstruction (35 men, 37 women; age= 25.8 ± 5.4 years) were included. Isokinetic muscle torque in knee flexion and extension was measured with an isokinetic dynamometer. Isometric flexion and extension knee muscle torque was measured with a hand-held dynamometer. Bland & Altman plots and Cohen’s Kappa coefficient were used to assess agreement between measurements obtained from the instruments. Result Bland & Altman plots showed wide limits of agreement between the instruments for both flexion and extension limb symmetry index. Cohen´s Kappa coefficient revealed a poor to slight agreement between the extension limb symmetry index values (0.136) and a fair agreement for flexion limb symmetry index values (0.236). Cross-tabulations showed that the hand-held dynamometer detected a significantly larger number of participants with abnormal flexion torque limb symmetry index compared to the isokinetic dynamometer. Conclusion The wide limits of agreements and Cohen’s Kappa coefficients values revealed insufficient agreement between the measurements taken with the two instruments,.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
agreement, anterior cruciate ligament reconstruction, hand-held dynamometer, isokinetic dynamometer, limb symmetry index
in
International Journal of Sports Physical Therapy
volume
17
issue
7
pages
11 pages
publisher
American Physical Therapy Association
external identifiers
  • pmid:36518830
  • scopus:85143218143
ISSN
2159-2896
DOI
10.26603/001c.39798
language
English
LU publication?
yes
id
09df23c9-835a-486a-85b4-2b3d0a870799
date added to LUP
2022-12-27 09:22:02
date last changed
2024-04-18 16:56:58
@article{09df23c9-835a-486a-85b4-2b3d0a870799,
  abstract     = {{<p>Two commonly used instruments to assess muscle strength after anterior cruciate ligament reconstruction are the isokinetic dynamometer, which measures isokinetic torque and the hand-held dynamometer, which measures isometric torque. Isokinetic dynamometers are considered superior to other instruments but may not be commonly used in clinical settings. Hand-held dynamometers are small, portable, and more clinically applicable devices. Purpose The purpose of this study was to assess agreement between a hand-held dynamometer and an isokinetic dynamometer, used to assess lower limb symmetry in knee muscle torque one year after anterior cruciate ligament (ACL) reconstruction. Study design Cross-sectional measurement study Methods Seventy-two participants who had undergone ACL reconstruction (35 men, 37 women; age= 25.8 ± 5.4 years) were included. Isokinetic muscle torque in knee flexion and extension was measured with an isokinetic dynamometer. Isometric flexion and extension knee muscle torque was measured with a hand-held dynamometer. Bland &amp; Altman plots and Cohen’s Kappa coefficient were used to assess agreement between measurements obtained from the instruments. Result Bland &amp; Altman plots showed wide limits of agreement between the instruments for both flexion and extension limb symmetry index. Cohen´s Kappa coefficient revealed a poor to slight agreement between the extension limb symmetry index values (0.136) and a fair agreement for flexion limb symmetry index values (0.236). Cross-tabulations showed that the hand-held dynamometer detected a significantly larger number of participants with abnormal flexion torque limb symmetry index compared to the isokinetic dynamometer. Conclusion The wide limits of agreements and Cohen’s Kappa coefficients values revealed insufficient agreement between the measurements taken with the two instruments,.</p>}},
  author       = {{Ivarsson, Angelica and Cronström, Anna}},
  issn         = {{2159-2896}},
  keywords     = {{agreement; anterior cruciate ligament reconstruction; hand-held dynamometer; isokinetic dynamometer; limb symmetry index}},
  language     = {{eng}},
  number       = {{7}},
  pages        = {{1307--1317}},
  publisher    = {{American Physical Therapy Association}},
  series       = {{International Journal of Sports Physical Therapy}},
  title        = {{Agreement Between Isokinetic Dynamometer and Hand-held Isometric Dynamometer as Measures to Detect Lower Limb Asymmetry in Muscle Torque After Anterior Cruciate Ligament Reconstruction}},
  url          = {{http://dx.doi.org/10.26603/001c.39798}},
  doi          = {{10.26603/001c.39798}},
  volume       = {{17}},
  year         = {{2022}},
}