Cargando…

Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities

PURPOSE: Static stretching is used in sport practice but it has been associated with decrements in force and performance. Therefore, we examined the effect of short duration static stretch on the mechano-morphological properties of the m. vastus lateralis (VL) muscle tendon unit (MTU) and on the jum...

Descripción completa

Detalles Bibliográficos
Autores principales: Stafilidis, Savvas, Tilp, Markus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4325183/
https://www.ncbi.nlm.nih.gov/pubmed/25399312
http://dx.doi.org/10.1007/s00421-014-3047-y
_version_ 1782356778165469184
author Stafilidis, Savvas
Tilp, Markus
author_facet Stafilidis, Savvas
Tilp, Markus
author_sort Stafilidis, Savvas
collection PubMed
description PURPOSE: Static stretching is used in sport practice but it has been associated with decrements in force and performance. Therefore, we examined the effect of short duration static stretch on the mechano-morphological properties of the m. vastus lateralis (VL) muscle tendon unit (MTU) and on the jumping performance. METHODS: Eight males and three females (mean ± SD, 25.5 ± 3.1 years) stretched their lower legs for a 15 or 60 s duration or acted as their own control without stretching in a randomized order. In a pre-post design, a passive movement (5°/s) and a maximum voluntary knee extension contraction (MVC) were performed on dynamometer while the VL tendon and aponeurosis was observed via ultrasound. Furthermore, the participants performed countermovement (CMJ) and squat jumps (SJ). RESULTS: Repeated measures ANOVA did not show significant differences in MVC, active and passive strain, stiffness, elongation, knee joint angle range, and jump performance between and within groups. CONCLUSIONS: The applied stretch stimuli (15 or 60 s) were not sufficient to trigger adaptations in the mechano-morphological properties of the lower extremities MTU which therefore did neither affect jump performance nor MVC. As a possible mechanism, we hypothesized that the dose-time dependency effect of static stretch might have important implications when measuring functional parameters of the MTU and performance. Further examination is necessary to elucidate its impact in the examination of the MTU mechano-morphological properties.
format Online
Article
Text
id pubmed-4325183
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Springer Berlin Heidelberg
record_format MEDLINE/PubMed
spelling pubmed-43251832015-02-18 Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities Stafilidis, Savvas Tilp, Markus Eur J Appl Physiol Original Article PURPOSE: Static stretching is used in sport practice but it has been associated with decrements in force and performance. Therefore, we examined the effect of short duration static stretch on the mechano-morphological properties of the m. vastus lateralis (VL) muscle tendon unit (MTU) and on the jumping performance. METHODS: Eight males and three females (mean ± SD, 25.5 ± 3.1 years) stretched their lower legs for a 15 or 60 s duration or acted as their own control without stretching in a randomized order. In a pre-post design, a passive movement (5°/s) and a maximum voluntary knee extension contraction (MVC) were performed on dynamometer while the VL tendon and aponeurosis was observed via ultrasound. Furthermore, the participants performed countermovement (CMJ) and squat jumps (SJ). RESULTS: Repeated measures ANOVA did not show significant differences in MVC, active and passive strain, stiffness, elongation, knee joint angle range, and jump performance between and within groups. CONCLUSIONS: The applied stretch stimuli (15 or 60 s) were not sufficient to trigger adaptations in the mechano-morphological properties of the lower extremities MTU which therefore did neither affect jump performance nor MVC. As a possible mechanism, we hypothesized that the dose-time dependency effect of static stretch might have important implications when measuring functional parameters of the MTU and performance. Further examination is necessary to elucidate its impact in the examination of the MTU mechano-morphological properties. Springer Berlin Heidelberg 2014-11-16 2015 /pmc/articles/PMC4325183/ /pubmed/25399312 http://dx.doi.org/10.1007/s00421-014-3047-y Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
spellingShingle Original Article
Stafilidis, Savvas
Tilp, Markus
Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title_full Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title_fullStr Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title_full_unstemmed Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title_short Effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
title_sort effects of short duration static stretching on jump performance, maximum voluntary contraction, and various mechanical and morphological parameters of the muscle–tendon unit of the lower extremities
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4325183/
https://www.ncbi.nlm.nih.gov/pubmed/25399312
http://dx.doi.org/10.1007/s00421-014-3047-y
work_keys_str_mv AT stafilidissavvas effectsofshortdurationstaticstretchingonjumpperformancemaximumvoluntarycontractionandvariousmechanicalandmorphologicalparametersofthemuscletendonunitofthelowerextremities
AT tilpmarkus effectsofshortdurationstaticstretchingonjumpperformancemaximumvoluntarycontractionandvariousmechanicalandmorphologicalparametersofthemuscletendonunitofthelowerextremities