Neuromuscular Mechanisms Underlying Changes in Force Production during an Attentional Focus Task.

attentional focus co-contraction corticospinal excitability

Journal

Brain sciences
ISSN: 2076-3425
Titre abrégé: Brain Sci
Pays: Switzerland
ID NLM: 101598646

Informations de publication

Date de publication:
07 Jan 2020
Historique:
received: 25 11 2019
revised: 20 12 2019
accepted: 03 01 2020
entrez: 16 1 2020
pubmed: 16 1 2020
medline: 16 1 2020
Statut: epublish

Résumé

We examined the effects of attentional focus cues on maximal voluntary force output of the elbow flexors and the underlying physiological mechanisms. Eleven males participated in two randomized experimental sessions. In each session, four randomized blocks of three maximal voluntary contractions (MVC) were performed. The blocks consisted of two externally and two internally attentional focus cued blocks. In one of the sessions, corticospinal excitability (CSE) was measured. During the stimulation session transcranial magnetic, transmastoid and Erb's point stimulations were used to induce motor evoked potentials (MEPs), cervicomedullary MEP (CMEPs) and maximal muscle action potential (Mmax), respectively in the biceps brachii. Across both sessions forces were lower (

Identifiants

pubmed: 31936030
pii: brainsci10010033
doi: 10.3390/brainsci10010033
pmc: PMC7016702
pii:
doi:

Types de publication

Journal Article

Langues

eng

Subventions

Organisme : Natural Sciences and Engineering Research Council of Canada
ID : #RGPIN-2018-03876

Déclaration de conflit d'intérêts

The authors declare no conflict of interest.

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Auteurs

Shawn Wiseman (S)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Shahab Alizadeh (S)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Israel Halperin (I)

School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel.
Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv 6997801, Israel.

Behzad Lahouti (B)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Nicholas J Snow (NJ)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Kevin E Power (KE)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Duane C Button (DC)

School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.

Classifications MeSH