Assessment of neuromuscular activity during maximal isometric contraction in supine vs standing body positions

K Huseth, P Aagaard, A Gutke, Jón Karlsson, Roy Tranberg

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

BACKGROUND: When comparing neuromuscular activity between different individuals or different conditions by use of surface electromyography (sEMG) it is necessary to apply standardized assessment protocol. Most frequently used method is the maximum voluntary isometric contraction (MVIC). However, the influence of body posture on sEMG activity during MVIC testing remains largely unknown.

AIM: To evaluate the MVIC method for sEMG normalization in supine versus standing positions for selected muscles of the lower extremity and trunk.

METHODS: Twelve healthy individuals participated; five females and seven males (age 22-51 yrs). sEMG signals were recorded bilaterally from mm tibialis anterior, gluteus medius, adductor longus, rectus abdominus, external oblique and internal oblique/transversus abdominus according to standardized test protocol. Two different body positions were used: supine and standing position.

RESULTS: MVIC peak sEMG signal amplitudes did not differ systematically between supine and standing test positions. Pronounced inter-subject variability in MVIC reference sEMG activity were observed between participants, during both supine and standing test positions.

CONCLUSION: Present data demonstrate that MVIC EMG normalization is a biomechanically stable procedure that can be performed in a reproducible manner for the major leg and trunk muscles when comparing supine vs. standing test positions.

OriginalsprogEngelsk
Artikelnummer102365
TidsskriftJournal of Electromyography & Kinesiology
Vol/bind50
Antal sider7
ISSN1050-6411
DOI
StatusUdgivet - feb. 2020

Fingeraftryk

Isometric Contraction
Electromyography
Abdominal Muscles
Muscles
Rectus Abdominis
Supine Position
Leg

Bibliografisk note

Copyright © 2019 Elsevier Ltd. All rights reserved.

Citer dette

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title = "Assessment of neuromuscular activity during maximal isometric contraction in supine vs standing body positions",
abstract = "BACKGROUND: When comparing neuromuscular activity between different individuals or different conditions by use of surface electromyography (sEMG) it is necessary to apply standardized assessment protocol. Most frequently used method is the maximum voluntary isometric contraction (MVIC). However, the influence of body posture on sEMG activity during MVIC testing remains largely unknown.AIM: To evaluate the MVIC method for sEMG normalization in supine versus standing positions for selected muscles of the lower extremity and trunk.METHODS: Twelve healthy individuals participated; five females and seven males (age 22-51 yrs). sEMG signals were recorded bilaterally from mm tibialis anterior, gluteus medius, adductor longus, rectus abdominus, external oblique and internal oblique/transversus abdominus according to standardized test protocol. Two different body positions were used: supine and standing position.RESULTS: MVIC peak sEMG signal amplitudes did not differ systematically between supine and standing test positions. Pronounced inter-subject variability in MVIC reference sEMG activity were observed between participants, during both supine and standing test positions.CONCLUSION: Present data demonstrate that MVIC EMG normalization is a biomechanically stable procedure that can be performed in a reproducible manner for the major leg and trunk muscles when comparing supine vs. standing test positions.",
author = "K Huseth and P Aagaard and A Gutke and J{\'o}n Karlsson and Roy Tranberg",
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Assessment of neuromuscular activity during maximal isometric contraction in supine vs standing body positions. / Huseth, K; Aagaard, P; Gutke, A; Karlsson, Jón; Tranberg, Roy.

I: Journal of Electromyography & Kinesiology, Bind 50, 102365, 02.2020.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Assessment of neuromuscular activity during maximal isometric contraction in supine vs standing body positions

AU - Huseth, K

AU - Aagaard, P

AU - Gutke, A

AU - Karlsson, Jón

AU - Tranberg, Roy

N1 - Copyright © 2019 Elsevier Ltd. All rights reserved.

PY - 2020/2

Y1 - 2020/2

N2 - BACKGROUND: When comparing neuromuscular activity between different individuals or different conditions by use of surface electromyography (sEMG) it is necessary to apply standardized assessment protocol. Most frequently used method is the maximum voluntary isometric contraction (MVIC). However, the influence of body posture on sEMG activity during MVIC testing remains largely unknown.AIM: To evaluate the MVIC method for sEMG normalization in supine versus standing positions for selected muscles of the lower extremity and trunk.METHODS: Twelve healthy individuals participated; five females and seven males (age 22-51 yrs). sEMG signals were recorded bilaterally from mm tibialis anterior, gluteus medius, adductor longus, rectus abdominus, external oblique and internal oblique/transversus abdominus according to standardized test protocol. Two different body positions were used: supine and standing position.RESULTS: MVIC peak sEMG signal amplitudes did not differ systematically between supine and standing test positions. Pronounced inter-subject variability in MVIC reference sEMG activity were observed between participants, during both supine and standing test positions.CONCLUSION: Present data demonstrate that MVIC EMG normalization is a biomechanically stable procedure that can be performed in a reproducible manner for the major leg and trunk muscles when comparing supine vs. standing test positions.

AB - BACKGROUND: When comparing neuromuscular activity between different individuals or different conditions by use of surface electromyography (sEMG) it is necessary to apply standardized assessment protocol. Most frequently used method is the maximum voluntary isometric contraction (MVIC). However, the influence of body posture on sEMG activity during MVIC testing remains largely unknown.AIM: To evaluate the MVIC method for sEMG normalization in supine versus standing positions for selected muscles of the lower extremity and trunk.METHODS: Twelve healthy individuals participated; five females and seven males (age 22-51 yrs). sEMG signals were recorded bilaterally from mm tibialis anterior, gluteus medius, adductor longus, rectus abdominus, external oblique and internal oblique/transversus abdominus according to standardized test protocol. Two different body positions were used: supine and standing position.RESULTS: MVIC peak sEMG signal amplitudes did not differ systematically between supine and standing test positions. Pronounced inter-subject variability in MVIC reference sEMG activity were observed between participants, during both supine and standing test positions.CONCLUSION: Present data demonstrate that MVIC EMG normalization is a biomechanically stable procedure that can be performed in a reproducible manner for the major leg and trunk muscles when comparing supine vs. standing test positions.

U2 - 10.1016/j.jelekin.2019.102365

DO - 10.1016/j.jelekin.2019.102365

M3 - Journal article

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VL - 50

JO - Journal of Electromyography & Kinesiology

JF - Journal of Electromyography & Kinesiology

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