Motor Unit Firing Properties During Force Control Task and Associations With Neurological Tests in Children.
The present study aimed to clarify the development of motor unit (MU) firing properties and the association between those neural properties and force steadiness (FS)/neurological tests in 6- to 12-year-old children. Fifty-eight school-aged children performed maximal voluntary knee extension contract...
| Publicado en: | Pediatric Exercise Science Vol. 36; no. 1; pp. 23 - 30 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Feb2024
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=175024683&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 175024683 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08998493 0DP jtl: Pediatric Exercise Science issn: 08998493 maglogo: N pubinfo: dt: Feb2024 vid: 36 iid: 1 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 175024683 175024683 175024683 10.1123/pes.2023-0002 175024683 ppf: 23 ppct: 7 formats: tig: atl: Motor Unit Firing Properties During Force Control Task and Associations With Neurological Tests in Children. aug: au: Okudaira, Masamichi Takeda, Ryosuke Hirono, Tetsuya Nishikawa, Taichi Kunugi, Shun Watanabe, Kohei affil: Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Toyota, Japan sug: subj: Motor Unit Physiology Neurologic Examination Methods Task Performance and Analysis In Infancy and Childhood Human Child Age Factors Electromyography Multiple Regression Quadriceps Muscles Biomechanics Motor Skills Reaction Time Neurodevelopment Descriptive Statistics Child: 6-12 years ab: The present study aimed to clarify the development of motor unit (MU) firing properties and the association between those neural properties and force steadiness (FS)/neurological tests in 6- to 12-year-old children. Fifty-eight school-aged children performed maximal voluntary knee extension contraction, a submaximal FS test at 10% of maximal voluntary knee extension contraction, knee extension reaction time to light stimulus test, and single-leg standing test, and data from 38 children who passed the criteria were subject to analysis. During the FS test, high-density surface electromyography was recorded from the vastus lateralis muscle to identify individual MU firing activity. FS was improved with an increase in age (r = −.540, P <.001). The MU firing rate (MUFR) was significantly decreased with an increase in age (r = −.343, P =.035). MUFR variability was not associated with age. Although there was no significant correlation between FS and MUFR, FS was significantly correlated with MUFR variability even after adjustment for the effect of age (r =.551, P =.002). Neither the reaction time nor the single-leg standing test was correlated with any MU firing properties. These findings suggest that MUFR variability makes an important contribution to precise force control in children but does not naturally develop with age. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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