Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon

In the multisport of triathlon cycling is the longest of the three sequential disciplines. Triathlon bicycles differ from road bicycles with steeper seat tube angles with a change to saddle height altering the seat tube angle. This study evaluated the effectiveness of a tri axial accelerometer to de...

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Main Authors: Stuart A. Evans, Daniel A. James, David Rowlands, James B. Lee
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/3/871
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author Stuart A. Evans
Daniel A. James
David Rowlands
James B. Lee
author_facet Stuart A. Evans
Daniel A. James
David Rowlands
James B. Lee
author_sort Stuart A. Evans
collection DOAJ
description In the multisport of triathlon cycling is the longest of the three sequential disciplines. Triathlon bicycles differ from road bicycles with steeper seat tube angles with a change to saddle height altering the seat tube angle. This study evaluated the effectiveness of a tri axial accelerometer to determine acceleration magnitudes of the trunk in outdoor cycling in two saddle positions. Interpretation of data was evaluated based on cadence changes whilst triathletes cycled in an aerodynamic position in two saddle positions. The evaluation of accelerometer derived data within a characteristic overground setting suggests a significant reduction in mediolateral acceleration of the trunk, yielding a 25.1% decrease when saddle height was altered alongside reduced rate of perceived exertion (3.9%). Minimal differences were observed in anteroposterior and longitudinal acceleration. Evaluation of sensor data revealed a polynomial expression of the subtle changes between both saddle positions. This study shows that a triaxial accelerometer has capability to continuously measure acceleration magnitude of trunk movements during an in-the-field, varied cadence cycle protocol. Accessible and practical sensor technology could be relevant for postural considerations when exploring saddle position in dynamic settings.
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spelling doaj.art-696c1ad51bda46a3aead758bf30d48462023-12-03T15:03:14ZengMDPI AGSensors1424-82202021-01-0121387110.3390/s21030871Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in TriathlonStuart A. Evans0Daniel A. James1David Rowlands2James B. Lee3SABEL Labs, College of Health and Human Science, Charles Darwin University, 0810 Darwin, AustraliaSABEL Labs, College of Health and Human Science, Charles Darwin University, 0810 Darwin, AustraliaSchool of Engineering, Griffith University, 4111 Nathan, AustraliaSABEL Labs, College of Health and Human Science, Charles Darwin University, 0810 Darwin, AustraliaIn the multisport of triathlon cycling is the longest of the three sequential disciplines. Triathlon bicycles differ from road bicycles with steeper seat tube angles with a change to saddle height altering the seat tube angle. This study evaluated the effectiveness of a tri axial accelerometer to determine acceleration magnitudes of the trunk in outdoor cycling in two saddle positions. Interpretation of data was evaluated based on cadence changes whilst triathletes cycled in an aerodynamic position in two saddle positions. The evaluation of accelerometer derived data within a characteristic overground setting suggests a significant reduction in mediolateral acceleration of the trunk, yielding a 25.1% decrease when saddle height was altered alongside reduced rate of perceived exertion (3.9%). Minimal differences were observed in anteroposterior and longitudinal acceleration. Evaluation of sensor data revealed a polynomial expression of the subtle changes between both saddle positions. This study shows that a triaxial accelerometer has capability to continuously measure acceleration magnitude of trunk movements during an in-the-field, varied cadence cycle protocol. Accessible and practical sensor technology could be relevant for postural considerations when exploring saddle position in dynamic settings.https://www.mdpi.com/1424-8220/21/3/871accelerometersensorcentre of masscyclingsports science
spellingShingle Stuart A. Evans
Daniel A. James
David Rowlands
James B. Lee
Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
Sensors
accelerometer
sensor
centre of mass
cycling
sports science
title Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
title_full Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
title_fullStr Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
title_full_unstemmed Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
title_short Evaluation of Accelerometer-Derived Data in the Context of Cycling Cadence and Saddle Height Changes in Triathlon
title_sort evaluation of accelerometer derived data in the context of cycling cadence and saddle height changes in triathlon
topic accelerometer
sensor
centre of mass
cycling
sports science
url https://www.mdpi.com/1424-8220/21/3/871
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