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dc.contributor.authorMason, Joel
dc.contributor.authorFrazer, Ashlyn K.
dc.contributor.authorAvela, Janne
dc.contributor.authorPearce, Alan J.
dc.contributor.authorHowatson, Glyn
dc.contributor.authorKidgell, Dawson J.
dc.date.accessioned2020-02-19T07:22:40Z
dc.date.available2020-02-19T07:22:40Z
dc.date.issued2020
dc.identifier.citationMason, J., Frazer, A. K., Avela, J., Pearce, A. J., Howatson, G., & Kidgell, D. J. (2020). Tracking the corticospinal responses to strength training. <i>European Journal of Applied Physiology</i>, <i>120</i>(6), 783-798. <a href="https://doi.org/10.1007/s00421-020-04316-6" target="_blank">https://doi.org/10.1007/s00421-020-04316-6</a>
dc.identifier.otherCONVID_34643046
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/67871
dc.description.abstractPurpose The motor cortex (M1) appears to be a primary site of adaptation following both a single session, and repeated strength-training sessions across multiple weeks. Given that a single session of strength-training is sufficient to induce modification at the level of the M1 and corticospinal tract, this study sought to determine how these acute changes in M1 and corticospinal tract might accumulate across the course of a 2-week heavy-load strength-training program. Methods Transcranial magnetic stimulation (TMS) was used to infer corticospinal excitability (CSE), intracortical facilitation (ICF), short and long-interval intracortical inhibition (SICI and LICI) and silent period duration prior to and following each training session during a 2-week heavy-load strength-training period. Results Following 2-weeks of strength-training, increases in strength (15.5%, P = 0.01) were accompanied by an increase in CSE (44%, P = 0.006) and reductions in both silent period duration (14%, P < 0.0001) and SICI (35%, P = 0.0004). Early training sessions acutely increased CSE and ICF, and acutely reduced silent period duration and SICI. However, later training sessions failed to modulate SICI and ICF, with substantial adaptations occurring offline between training sessions. No acute or retained changes in LICI were observed. Co-contraction of antagonists reduced by 36% following 2-weeks of strength-training. Conclusions Collectively, these results indicate that corticospinal plasticity occurs within and between training sessions throughout a training period in distinct early and later stages that are modulated by separate mechanisms of plasticity. The development of strength is akin to the previously reported changes that occur following motor skill training.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesEuropean Journal of Applied Physiology
dc.rightsIn Copyright
dc.subject.othercorticospinal excitability
dc.subject.othercortical plasticity
dc.subject.otherintracortical facilitation
dc.subject.othershort-interval cortical inhibition
dc.subject.othersilent period
dc.subject.otherstrength training
dc.titleTracking the corticospinal responses to strength training
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202002192107
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineBiomechanicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange783-798
dc.relation.issn1439-6319
dc.relation.numberinseries6
dc.relation.volume120
dc.type.versionacceptedVersion
dc.rights.copyright© Springer-Verlag GmbH Germany, part of Springer Nature 2020
dc.rights.accesslevelopenAccessfi
dc.subject.ysoaivokuori
dc.subject.ysovoimaharjoittelu
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p7039
jyx.subject.urihttp://www.yso.fi/onto/yso/p16233
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1007/s00421-020-04316-6
jyx.fundinginformationThis research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.


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