Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The clinical significance of electromyography normalisation techniques in subjects with anterior cruciate ligament injury during treadmill walking

Benoit, D. L. LU ; Lamontagne, M. ; Cerulli, G. and Liti, A. (2003) In Gait and Posture 18(2). p.56-63
Abstract

This study investigated the clinical interpretation of three electromyographic (EMG) normalisation techniques to detect neuromuscular alterations in patients diagnosed with anterior cruciate ligament knee injury during treadmill walking. The EMG signal was normalised using the mean value during the gait cycles (MEA), the maximum value during the gait cycles (MAX), and a maximum voluntary isometric contraction (MVC) test in 16 male and female subjects. The MAX method detected an increase in total muscle activity in the injured limb rectus femoris (11.6%; P=0.02) while the MVC method detected decreased injured limb gastrocnemius medialis (GM) overall muscle activity (34.4%; P=0.02). The MAX method identified decreased GM activity in three... (More)

This study investigated the clinical interpretation of three electromyographic (EMG) normalisation techniques to detect neuromuscular alterations in patients diagnosed with anterior cruciate ligament knee injury during treadmill walking. The EMG signal was normalised using the mean value during the gait cycles (MEA), the maximum value during the gait cycles (MAX), and a maximum voluntary isometric contraction (MVC) test in 16 male and female subjects. The MAX method detected an increase in total muscle activity in the injured limb rectus femoris (11.6%; P=0.02) while the MVC method detected decreased injured limb gastrocnemius medialis (GM) overall muscle activity (34.4%; P=0.02). The MAX method identified decreased GM activity in three portions of the gait cycle. This study indicates the importance of choosing the appropriate normalisation technique since its choice will change outcome measures and subsequent clinical interpretation.

(Less)
Please use this url to cite or link to this publication:
author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Anterior cruciate ligament, Electromyography, Knee, Normalisation, Walking
in
Gait and Posture
volume
18
issue
2
pages
8 pages
publisher
Elsevier
external identifiers
  • pmid:14654208
  • scopus:0344515569
ISSN
0966-6362
DOI
10.1016/S0966-6362(02)00194-7
language
English
LU publication?
no
id
61d8d826-74fe-4e78-a6a5-a0f8dca28d15
date added to LUP
2023-08-24 16:31:21
date last changed
2025-05-19 17:44:27
@article{61d8d826-74fe-4e78-a6a5-a0f8dca28d15,
  abstract     = {{<p>This study investigated the clinical interpretation of three electromyographic (EMG) normalisation techniques to detect neuromuscular alterations in patients diagnosed with anterior cruciate ligament knee injury during treadmill walking. The EMG signal was normalised using the mean value during the gait cycles (MEA), the maximum value during the gait cycles (MAX), and a maximum voluntary isometric contraction (MVC) test in 16 male and female subjects. The MAX method detected an increase in total muscle activity in the injured limb rectus femoris (11.6%; P=0.02) while the MVC method detected decreased injured limb gastrocnemius medialis (GM) overall muscle activity (34.4%; P=0.02). The MAX method identified decreased GM activity in three portions of the gait cycle. This study indicates the importance of choosing the appropriate normalisation technique since its choice will change outcome measures and subsequent clinical interpretation.</p>}},
  author       = {{Benoit, D. L. and Lamontagne, M. and Cerulli, G. and Liti, A.}},
  issn         = {{0966-6362}},
  keywords     = {{Anterior cruciate ligament; Electromyography; Knee; Normalisation; Walking}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{56--63}},
  publisher    = {{Elsevier}},
  series       = {{Gait and Posture}},
  title        = {{The clinical significance of electromyography normalisation techniques in subjects with anterior cruciate ligament injury during treadmill walking}},
  url          = {{http://dx.doi.org/10.1016/S0966-6362(02)00194-7}},
  doi          = {{10.1016/S0966-6362(02)00194-7}},
  volume       = {{18}},
  year         = {{2003}},
}