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Factors affecting knee abduction during weight-bearing activities in individuals with anterior cruciate ligament reconstruction

Cronström, A. LU ; Ageberg, E. LU orcid ; Franettovich Smith, M. M. ; Blackmore, T. ; Nae, J. LU orcid and Creaby, M. W. (2019) In Physical Therapy in Sport 38. p.8-15
Abstract

Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Setting: Laboratory. Participants: 24 women and 29 men approximately 7 months after ACLR. Main outcome measures: Isometric peak torque of the trunk and lower extremity muscles were determined during maximal voluntary contractions. Trunk and lower extremity average muscle activation amplitude and peak knee abduction were evaluated during the single-leg squat (SLS) and the single-leg hop for distance (SLHD) for the injured side. Separate backward regressions... (More)

Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Setting: Laboratory. Participants: 24 women and 29 men approximately 7 months after ACLR. Main outcome measures: Isometric peak torque of the trunk and lower extremity muscles were determined during maximal voluntary contractions. Trunk and lower extremity average muscle activation amplitude and peak knee abduction were evaluated during the single-leg squat (SLS) and the single-leg hop for distance (SLHD) for the injured side. Separate backward regressions were performed for men and women. Results: In women, lower knee flexion and extension strength were associated with greater peak knee abduction during the SLS (B = 4.63–18.26, p ≤ 0.036); lower knee flexion strength and iliocostalis activation on the non-injured side were associated with greater peak knee abduction during the SLHD (B = 0.60–20.48, p ≤ 0.043). No associations between muscle function and peak knee abduction were found in men. Conclusions: Muscle function may contribute differently to knee abduction in men and women after ACLR. This should be considered when designing rehabilitation programs to reduce knee abduction in these patients.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Anterior cruciate ligament injury, Knee abduction, Muscle activation, Strength
in
Physical Therapy in Sport
volume
38
pages
8 pages
publisher
Elsevier
external identifiers
  • pmid:31005032
  • scopus:85064478430
ISSN
1466-853X
DOI
10.1016/j.ptsp.2019.04.006
project
Movement quality in people with knee injury: validity of visual rating of and contributing senorimotor factors for postural orientation errors
language
English
LU publication?
yes
id
2f969854-85e5-4bbd-b9f2-55c511174023
date added to LUP
2019-05-03 08:53:08
date last changed
2024-04-16 05:09:45
@article{2f969854-85e5-4bbd-b9f2-55c511174023,
  abstract     = {{<p>Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Setting: Laboratory. Participants: 24 women and 29 men approximately 7 months after ACLR. Main outcome measures: Isometric peak torque of the trunk and lower extremity muscles were determined during maximal voluntary contractions. Trunk and lower extremity average muscle activation amplitude and peak knee abduction were evaluated during the single-leg squat (SLS) and the single-leg hop for distance (SLHD) for the injured side. Separate backward regressions were performed for men and women. Results: In women, lower knee flexion and extension strength were associated with greater peak knee abduction during the SLS (B = 4.63–18.26, p ≤ 0.036); lower knee flexion strength and iliocostalis activation on the non-injured side were associated with greater peak knee abduction during the SLHD (B = 0.60–20.48, p ≤ 0.043). No associations between muscle function and peak knee abduction were found in men. Conclusions: Muscle function may contribute differently to knee abduction in men and women after ACLR. This should be considered when designing rehabilitation programs to reduce knee abduction in these patients.</p>}},
  author       = {{Cronström, A. and Ageberg, E. and Franettovich Smith, M. M. and Blackmore, T. and Nae, J. and Creaby, M. W.}},
  issn         = {{1466-853X}},
  keywords     = {{Anterior cruciate ligament injury; Knee abduction; Muscle activation; Strength}},
  language     = {{eng}},
  pages        = {{8--15}},
  publisher    = {{Elsevier}},
  series       = {{Physical Therapy in Sport}},
  title        = {{Factors affecting knee abduction during weight-bearing activities in individuals with anterior cruciate ligament reconstruction}},
  url          = {{http://dx.doi.org/10.1016/j.ptsp.2019.04.006}},
  doi          = {{10.1016/j.ptsp.2019.04.006}},
  volume       = {{38}},
  year         = {{2019}},
}