The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences

Leg movement during cycling is constrained to the pedal/crank path and predominantly occurs in a sagittal plane. Medial-lateral force (FML) applied to the pedals is considered as a waste and does not contribute to the pedaling. The aim of this study was to examine the changes in FML across different...

Full description

Bibliographic Details
Main Authors: Borut Fonda, Jan Babič, Nejc Šarabon
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/3/1004
_version_ 1797408237518061568
author Borut Fonda
Jan Babič
Nejc Šarabon
author_facet Borut Fonda
Jan Babič
Nejc Šarabon
author_sort Borut Fonda
collection DOAJ
description Leg movement during cycling is constrained to the pedal/crank path and predominantly occurs in a sagittal plane. Medial-lateral force (FML) applied to the pedals is considered as a waste and does not contribute to the pedaling. The aim of this study was to examine the changes in FML across different cadences and workloads, and to examine the correlation with lateral knee movement (Q-angle). Twenty-two cyclists completed six trials at three workloads (2, 2.5 and 3 W/kg) and three cadences (75, 85, 95 rpm). Forces were recorded from the force pedal mounted to the left side. Absolute and normalized (to the peak total force) FML were compared across conditions and cross-correlation with Q-angle was calculated. Absolute FML was significantly different across cadences and workloads (<i>p</i> < 0.05) with higher absolute FML at higher cadence. There was no significant difference in normalized FML across the three cadences. There was a significant decrease in normalized FML (~10 N) at higher workloads. Statistically significant correlations were found between the FML and Q-angle (R = 0.70–0.77). The results demonstrate the link between the FML and Q-angle in healthy pain-free cyclists during stationary cycling. It has also been observed that smaller normalized magnitude of the FML is present when the force effectiveness is increased.
first_indexed 2024-03-09T03:56:29Z
format Article
id doaj.art-5e337f2f065a45caac7945837e6ae507
institution Directory Open Access Journal
issn 2076-3417
language English
last_indexed 2024-03-09T03:56:29Z
publishDate 2021-01-01
publisher MDPI AG
record_format Article
series Applied Sciences
spelling doaj.art-5e337f2f065a45caac7945837e6ae5072023-12-03T14:20:09ZengMDPI AGApplied Sciences2076-34172021-01-01113100410.3390/app11031004The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and CadencesBorut Fonda0Jan Babič1Nejc Šarabon2Faculty of Health Studies, University of Primorska, Polje 42, 6310 Izola, SloveniaJožef Stefan Institute, Jamova c. 39, 1000 Ljubljana, SloveniaFaculty of Health Studies, University of Primorska, Polje 42, 6310 Izola, SloveniaLeg movement during cycling is constrained to the pedal/crank path and predominantly occurs in a sagittal plane. Medial-lateral force (FML) applied to the pedals is considered as a waste and does not contribute to the pedaling. The aim of this study was to examine the changes in FML across different cadences and workloads, and to examine the correlation with lateral knee movement (Q-angle). Twenty-two cyclists completed six trials at three workloads (2, 2.5 and 3 W/kg) and three cadences (75, 85, 95 rpm). Forces were recorded from the force pedal mounted to the left side. Absolute and normalized (to the peak total force) FML were compared across conditions and cross-correlation with Q-angle was calculated. Absolute FML was significantly different across cadences and workloads (<i>p</i> < 0.05) with higher absolute FML at higher cadence. There was no significant difference in normalized FML across the three cadences. There was a significant decrease in normalized FML (~10 N) at higher workloads. Statistically significant correlations were found between the FML and Q-angle (R = 0.70–0.77). The results demonstrate the link between the FML and Q-angle in healthy pain-free cyclists during stationary cycling. It has also been observed that smaller normalized magnitude of the FML is present when the force effectiveness is increased.https://www.mdpi.com/2076-3417/11/3/1004force pedalsperformancebiomechanics
spellingShingle Borut Fonda
Jan Babič
Nejc Šarabon
The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
Applied Sciences
force pedals
performance
biomechanics
title The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
title_full The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
title_fullStr The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
title_full_unstemmed The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
title_short The Medial-Lateral Pedal Force Component Correlates with Q-Angle during Steady-State Cycling at Different Workloads and Cadences
title_sort medial lateral pedal force component correlates with q angle during steady state cycling at different workloads and cadences
topic force pedals
performance
biomechanics
url https://www.mdpi.com/2076-3417/11/3/1004
work_keys_str_mv AT borutfonda themediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences
AT janbabic themediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences
AT nejcsarabon themediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences
AT borutfonda mediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences
AT janbabic mediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences
AT nejcsarabon mediallateralpedalforcecomponentcorrelateswithqangleduringsteadystatecyclingatdifferentworkloadsandcadences