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Differential contributions of ankle plantarflexors during submaximal isometric muscle action: A PET and EMG study

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Standard

Differential contributions of ankle plantarflexors during submaximal isometric muscle action : A PET and EMG study. / Masood, Tahir; Bojsen-Møller, Jens; Kalliokoski, Kari K; Kirjavainen, Anna; Áärimaa, Ville; Peter Magnusson, S; Finni, Taija.

I: Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, Bind 24, Nr. 3, 06.2014, s. 367–374.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Masood, T, Bojsen-Møller, J, Kalliokoski, KK, Kirjavainen, A, Áärimaa, V, Peter Magnusson, S & Finni, T 2014, 'Differential contributions of ankle plantarflexors during submaximal isometric muscle action: A PET and EMG study', Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, bind 24, nr. 3, s. 367–374. https://doi.org/10.1016/j.jelekin.2014.03.002

APA

Masood, T., Bojsen-Møller, J., Kalliokoski, K. K., Kirjavainen, A., Áärimaa, V., Peter Magnusson, S., & Finni, T. (2014). Differential contributions of ankle plantarflexors during submaximal isometric muscle action: A PET and EMG study. Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, 24(3), 367–374. https://doi.org/10.1016/j.jelekin.2014.03.002

Vancouver

Masood T, Bojsen-Møller J, Kalliokoski KK, Kirjavainen A, Áärimaa V, Peter Magnusson S o.a. Differential contributions of ankle plantarflexors during submaximal isometric muscle action: A PET and EMG study. Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology. 2014 jun;24(3):367–374. https://doi.org/10.1016/j.jelekin.2014.03.002

Author

Masood, Tahir ; Bojsen-Møller, Jens ; Kalliokoski, Kari K ; Kirjavainen, Anna ; Áärimaa, Ville ; Peter Magnusson, S ; Finni, Taija. / Differential contributions of ankle plantarflexors during submaximal isometric muscle action : A PET and EMG study. I: Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology. 2014 ; Bind 24, Nr. 3. s. 367–374.

Bibtex

@article{772cc1a1d727484f9d349cf9634e7323,
title = "Differential contributions of ankle plantarflexors during submaximal isometric muscle action: A PET and EMG study",
abstract = "The objective of this study was to investigate the relative contributions of superficial and deep ankle plantarflexors during repetitive submaximal isometric contractions using surface electromyography (SEMG) and positron emission tomography (PET). Myoelectric signals were obtained from twelve healthy volunteers (27.3±4.2yrs). A tracer ([(18)F]-FDG) was injected during the exercise and PET scanning was done immediately afterwards. The examined muscles included soleus (Sol), medial gastrocnemius (MG), lateral gastrocnemius (LG), and flexor hallucis longus (FHL). It was found that isometric maximal voluntary contraction (MVC) force, muscle glucose uptake (GU) rate, and SEMG of various plantarflexors were comparable bilaterally. In terms of {\%}EMG MVC, FHL and MG displayed the highest activity (∼34{\%}), while LG (∼21{\%}) had the lowest activity. Cumulative SEMG from all parts of the triceps surae (TS) muscle accounted for ∼70{\%} of the combined EMG signal of all four plantarflexors. As for GU, the highest quantity was observed in MG (2.4±0.8μmol*100g(-1)*min(-1)), whereas FHL (1.8±0.6μmol*100g(-1)*min(-1)) had the lowest uptake. Cumulative GU of TS constituted nearly 80{\%} of the combined GU. The findings of this study provide valuable reference for studies where individual muscle contributions are estimated using models and simulations.",
keywords = "Adult, Ankle, Arthrometry, Articular, Electromyography, Exercise, Female, Glucose, Healthy Volunteers, Humans, Isometric Contraction, Leg, Magnetic Resonance Imaging, Male, Muscle, Skeletal, Positron-Emission Tomography, Young Adult",
author = "Tahir Masood and Jens Bojsen-M{\o}ller and Kalliokoski, {Kari K} and Anna Kirjavainen and Ville {\'A}{\"a}rimaa and {Peter Magnusson}, S and Taija Finni",
note = "Copyright {\circledC} 2014 Elsevier Ltd. All rights reserved.",
year = "2014",
month = "6",
doi = "10.1016/j.jelekin.2014.03.002",
language = "English",
volume = "24",
pages = "367–374",
journal = "Journal of Electromyography & Kinesiology",
issn = "1050-6411",
publisher = "Elsevier",
number = "3",

}

RIS

TY - JOUR

T1 - Differential contributions of ankle plantarflexors during submaximal isometric muscle action

T2 - A PET and EMG study

AU - Masood, Tahir

AU - Bojsen-Møller, Jens

AU - Kalliokoski, Kari K

AU - Kirjavainen, Anna

AU - Áärimaa, Ville

AU - Peter Magnusson, S

AU - Finni, Taija

N1 - Copyright © 2014 Elsevier Ltd. All rights reserved.

PY - 2014/6

Y1 - 2014/6

N2 - The objective of this study was to investigate the relative contributions of superficial and deep ankle plantarflexors during repetitive submaximal isometric contractions using surface electromyography (SEMG) and positron emission tomography (PET). Myoelectric signals were obtained from twelve healthy volunteers (27.3±4.2yrs). A tracer ([(18)F]-FDG) was injected during the exercise and PET scanning was done immediately afterwards. The examined muscles included soleus (Sol), medial gastrocnemius (MG), lateral gastrocnemius (LG), and flexor hallucis longus (FHL). It was found that isometric maximal voluntary contraction (MVC) force, muscle glucose uptake (GU) rate, and SEMG of various plantarflexors were comparable bilaterally. In terms of %EMG MVC, FHL and MG displayed the highest activity (∼34%), while LG (∼21%) had the lowest activity. Cumulative SEMG from all parts of the triceps surae (TS) muscle accounted for ∼70% of the combined EMG signal of all four plantarflexors. As for GU, the highest quantity was observed in MG (2.4±0.8μmol*100g(-1)*min(-1)), whereas FHL (1.8±0.6μmol*100g(-1)*min(-1)) had the lowest uptake. Cumulative GU of TS constituted nearly 80% of the combined GU. The findings of this study provide valuable reference for studies where individual muscle contributions are estimated using models and simulations.

AB - The objective of this study was to investigate the relative contributions of superficial and deep ankle plantarflexors during repetitive submaximal isometric contractions using surface electromyography (SEMG) and positron emission tomography (PET). Myoelectric signals were obtained from twelve healthy volunteers (27.3±4.2yrs). A tracer ([(18)F]-FDG) was injected during the exercise and PET scanning was done immediately afterwards. The examined muscles included soleus (Sol), medial gastrocnemius (MG), lateral gastrocnemius (LG), and flexor hallucis longus (FHL). It was found that isometric maximal voluntary contraction (MVC) force, muscle glucose uptake (GU) rate, and SEMG of various plantarflexors were comparable bilaterally. In terms of %EMG MVC, FHL and MG displayed the highest activity (∼34%), while LG (∼21%) had the lowest activity. Cumulative SEMG from all parts of the triceps surae (TS) muscle accounted for ∼70% of the combined EMG signal of all four plantarflexors. As for GU, the highest quantity was observed in MG (2.4±0.8μmol*100g(-1)*min(-1)), whereas FHL (1.8±0.6μmol*100g(-1)*min(-1)) had the lowest uptake. Cumulative GU of TS constituted nearly 80% of the combined GU. The findings of this study provide valuable reference for studies where individual muscle contributions are estimated using models and simulations.

KW - Adult

KW - Ankle

KW - Arthrometry, Articular

KW - Electromyography

KW - Exercise

KW - Female

KW - Glucose

KW - Healthy Volunteers

KW - Humans

KW - Isometric Contraction

KW - Leg

KW - Magnetic Resonance Imaging

KW - Male

KW - Muscle, Skeletal

KW - Positron-Emission Tomography

KW - Young Adult

U2 - 10.1016/j.jelekin.2014.03.002

DO - 10.1016/j.jelekin.2014.03.002

M3 - Journal article

C2 - 24717406

VL - 24

SP - 367

EP - 374

JO - Journal of Electromyography & Kinesiology

JF - Journal of Electromyography & Kinesiology

SN - 1050-6411

IS - 3

ER -

ID: 138553865