Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels

<i>Background and Objectives:</i> The aim of the present study was to compare the impact of an incremental exercise test on muscle stiffness in the rectus femoris (RF), vastus lateralis (VL), biceps femoris (BF), and gastrocnemius (GL) among road cyclists of three performance levels. <...

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Main Authors: Isaac López-Laval, Rafel Cirer-Sastre, Francisco Corbi, Sebastian Sitko
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/57/6/606
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author Isaac López-Laval
Rafel Cirer-Sastre
Francisco Corbi
Sebastian Sitko
author_facet Isaac López-Laval
Rafel Cirer-Sastre
Francisco Corbi
Sebastian Sitko
author_sort Isaac López-Laval
collection DOAJ
description <i>Background and Objectives:</i> The aim of the present study was to compare the impact of an incremental exercise test on muscle stiffness in the rectus femoris (RF), vastus lateralis (VL), biceps femoris (BF), and gastrocnemius (GL) among road cyclists of three performance levels. <i>Materials and Methods:</i> The study group consisted of 35 cyclists grouped according to their performance level; elite (<i>n</i> = 10; professional license), sub-elite (<i>n</i> = 12; amateur license), and recreational (<i>n</i> = 13; cyclosportive license). Passive muscle stiffness was assessed using myometry before and after an incremental exercise test. <i>Results</i>: There was a significant correlation between time and category in the vastus lateralis with stiffness increases in the sub-elite (<i>p</i> = 0.001, Cohen’s <i>d</i> = 0.88) and elite groups (<i>p</i> = 0.003, Cohen’s <i>d</i> = 0.72), but not in the recreational group (<i>p</i> = 0.085). Stiffness increased over time in the knee extensors (RF, <i>p</i> < 0.001; VL, <i>p</i> < 0.001), but no changes were observed in the knee flexors (GL, <i>p</i> = 0.63, BF, <i>p</i> = 0.052). There were no baseline differences among the categories in any muscle. <i>Conclusions</i>: Although the performance level affected VL stiffness after an incremental exercise test, no differences in passive stiffness were observed among the main muscles implicated in pedaling in a resting state. Future research should assess whether this marker could be used to differentiate cyclists of varying fitness levels and its potential applicability for the monitoring of training load.
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spelling doaj.art-7050567f4ea445f08d267acc6ad589a32023-11-21T23:45:52ZengMDPI AGMedicina1010-660X1648-91442021-06-0157660610.3390/medicina57060606Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance LevelsIsaac López-Laval0Rafel Cirer-Sastre1Francisco Corbi2Sebastian Sitko3Faculty of Health and Sport Sciences (FCSD), University of Zaragoza, 22002 Huesca, SpainInstitut Nacional d’Educació Física de Catalunya (INEFC), Universitat de Lleida (UdL), 25192 Lleida, SpainInstitut Nacional d’Educació Física de Catalunya (INEFC), Universitat de Lleida (UdL), 25192 Lleida, SpainFaculty of Health and Sport Sciences (FCSD), University of Zaragoza, 22002 Huesca, Spain<i>Background and Objectives:</i> The aim of the present study was to compare the impact of an incremental exercise test on muscle stiffness in the rectus femoris (RF), vastus lateralis (VL), biceps femoris (BF), and gastrocnemius (GL) among road cyclists of three performance levels. <i>Materials and Methods:</i> The study group consisted of 35 cyclists grouped according to their performance level; elite (<i>n</i> = 10; professional license), sub-elite (<i>n</i> = 12; amateur license), and recreational (<i>n</i> = 13; cyclosportive license). Passive muscle stiffness was assessed using myometry before and after an incremental exercise test. <i>Results</i>: There was a significant correlation between time and category in the vastus lateralis with stiffness increases in the sub-elite (<i>p</i> = 0.001, Cohen’s <i>d</i> = 0.88) and elite groups (<i>p</i> = 0.003, Cohen’s <i>d</i> = 0.72), but not in the recreational group (<i>p</i> = 0.085). Stiffness increased over time in the knee extensors (RF, <i>p</i> < 0.001; VL, <i>p</i> < 0.001), but no changes were observed in the knee flexors (GL, <i>p</i> = 0.63, BF, <i>p</i> = 0.052). There were no baseline differences among the categories in any muscle. <i>Conclusions</i>: Although the performance level affected VL stiffness after an incremental exercise test, no differences in passive stiffness were observed among the main muscles implicated in pedaling in a resting state. Future research should assess whether this marker could be used to differentiate cyclists of varying fitness levels and its potential applicability for the monitoring of training load.https://www.mdpi.com/1648-9144/57/6/606cyclistmyometrystiffnessincremental cycling test
spellingShingle Isaac López-Laval
Rafel Cirer-Sastre
Francisco Corbi
Sebastian Sitko
Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
Medicina
cyclist
myometry
stiffness
incremental cycling test
title Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
title_full Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
title_fullStr Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
title_full_unstemmed Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
title_short Characteristics of Pedaling Muscle Stiffness among Cyclists of Different Performance Levels
title_sort characteristics of pedaling muscle stiffness among cyclists of different performance levels
topic cyclist
myometry
stiffness
incremental cycling test
url https://www.mdpi.com/1648-9144/57/6/606
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AT sebastiansitko characteristicsofpedalingmusclestiffnessamongcyclistsofdifferentperformancelevels