Is better preservation of eccentric strength after stroke due to altered prefrontal function?

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Standard

Is better preservation of eccentric strength after stroke due to altered prefrontal function? / Hedlund, Mattias; Lindström, Britta; Sojka, Peter; Lundström, Ronnie; Boraxbekk, Carl Johan.

I: Neurocase, Bind 22, Nr. 2, 03.03.2016, s. 229-242.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Hedlund, M, Lindström, B, Sojka, P, Lundström, R & Boraxbekk, CJ 2016, 'Is better preservation of eccentric strength after stroke due to altered prefrontal function?', Neurocase, bind 22, nr. 2, s. 229-242. https://doi.org/10.1080/13554794.2015.1130232

APA

Hedlund, M., Lindström, B., Sojka, P., Lundström, R., & Boraxbekk, C. J. (2016). Is better preservation of eccentric strength after stroke due to altered prefrontal function? Neurocase, 22(2), 229-242. https://doi.org/10.1080/13554794.2015.1130232

Vancouver

Hedlund M, Lindström B, Sojka P, Lundström R, Boraxbekk CJ. Is better preservation of eccentric strength after stroke due to altered prefrontal function? Neurocase. 2016 mar. 3;22(2):229-242. https://doi.org/10.1080/13554794.2015.1130232

Author

Hedlund, Mattias ; Lindström, Britta ; Sojka, Peter ; Lundström, Ronnie ; Boraxbekk, Carl Johan. / Is better preservation of eccentric strength after stroke due to altered prefrontal function?. I: Neurocase. 2016 ; Bind 22, Nr. 2. s. 229-242.

Bibtex

@article{64197a990c314661ae7a03f00529f521,

title = "Is better preservation of eccentric strength after stroke due to altered prefrontal function?",

abstract = "Ventrolateral prefrontal cortex (VLPFC) is part of a network that exerts inhibitory control over the motor cortex (MC). Recently, we demonstrated that VLPFC was more activated during imagined maximum eccentric than during imagined concentric contractions in healthy participants. This was accompanied with lower activation levels within motor regions during imagined eccentric contractions. The aim was to test a novel hypothesis of an involvement of VLPFC in contraction mode-specific modulation of force. Functional magnetic resonance imaging was used to examine differences in VLPFC and motor regions during the concentric and the eccentric phases of imagined maximum contractions in a selected sample of subjects with stroke (n = 4). The subjects were included as they exhibited disturbed modulation of force. The previously demonstrated pattern within VLPFC was evident only on the contralesional hemisphere. On the ipsilesional hemisphere, the recruitment in VLPFC was similar for both modes of contractions. The findings support a hypothesis of the involvement of VLPFC in contraction mode-specific modulation of maximum force production. A disturbance of this system might underlie the lack of contraction mode-specific modulation commonly found among stroke subjects, often expressed as an increased ratio between eccentric and concentric strength.",

keywords = "concentric, eccentric, fMRI, inhibition, Motor imagery, stroke",

author = "Mattias Hedlund and Britta Lindstr{\"o}m and Peter Sojka and Ronnie Lundstr{\"o}m and Boraxbekk, {Carl Johan}",

note = "Publisher Copyright: {\textcopyright} 2016 Taylor & Francis.",

year = "2016",

month = mar,

day = "3",

doi = "10.1080/13554794.2015.1130232",

language = "English",

volume = "22",

pages = "229--242",

journal = "Neurocase",

issn = "1355-4794",

publisher = "Taylor & Francis",

number = "2",