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Myotonometric assessment of peroneus longus muscle mechanical properties during contraction in athletes with and without chronic ankle instability.
Stefaniak, Wojciech; Marusiak, Jaroslaw; Baczkowicz, Dawid.
Afiliación
  • Stefaniak W; Faculty of Physical Education and Physiotherapy, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, Poland. Electronic address: w.stefaniak@po.edu.pl.
  • Marusiak J; Faculty of Physical Education and Physiotherapy, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, Poland; Department of Kinesiology, Faculty of Physiotherapy, Wroclaw University of Health and Sport Science, al. I.J. Paderewskiego 35 (building P4), 51-612 Wroclaw, Poland.
  • Baczkowicz D; Faculty of Physical Education and Physiotherapy, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, Poland.
J Biomech ; 176: 112308, 2024 Sep 07.
Article en En | MEDLINE | ID: mdl-39270435
ABSTRACT
Our recent findings in athletes with chronic ankle instability (CAI) revealed increased tone and stiffness alongside reduced elasticity in the peroneus longus (PL) during myotonometric (MYO) measurements at rest, suggesting diagnostic relevance. MYO recordings during muscle contraction in healthy subjects showed an active muscle stiffness influence on MYO parameters, suggesting its potential impact on CAI-related MYO findings. However, it remains unknown whether PL stiffening observed recently in CAI athletes at rest can also be detected while PL muscle contraction. This study, using myotonometry, examines the PL mechanical properties during a motor task mimicking PL's biomechanical function, i.e., simultaneous isometric foot pronation and plantar flexion (IFPPF) at 30 % and 100 % of maximal voluntary contraction (MVC) in athletes with CAI. Nineteen adult male athletes with CAI (per International Ankle Consortium criteria) and 19 control (CO) athletes without lateral ankle sprain incidents comprised the study groups. Both groups had similar anthropometric parameters and training volume. Simultaneous force and MYO measurements were performed at 30 % and 100 % of MVC-IFPPF, using a MyotonPRO® device. Five MYO parameters were recorded in the PL frequency, stiffness, decrement, relaxation time, and creep. No significant inter-group differences were observed in MYO parameters and force values measured during the 30 % and 100 % of MVC-IFPPF. This study, employing myotonometry, is the first to demonstrate the lack of significant differences between CAI and CO athletes in the MYO parameters measured in the PL muscle at submaximal and maximal contraction during simultaneous IFPPF, contrasting with our previous MYO results in CAI at rest.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Biomech Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Biomech Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos