Influence of wheel size on muscle activity and tri-axial accelerations during cross-country mountain biking

Journal article


Hurst, Howard Thomas, Sinclair, Jonathan, Atkins, Stephen, Rylands, Lee and Metcalfe, John 2016. Influence of wheel size on muscle activity and tri-axial accelerations during cross-country mountain biking. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2016.1215497
AuthorsHurst, Howard Thomas, Sinclair, Jonathan, Atkins, Stephen, Rylands, Lee and Metcalfe, John
Abstract

This study aimed to investigate the influence of different mountain bike wheel diameters on muscle activity and whether larger diameter wheels attenuate muscle vibrations during cross-country riding. Nine male competitive mountain bikers (age 34.7 ± 10.7 years; stature 177.7 ± 5.6 cm; body mass 73.2 ± 8.6 kg) participated in the study. Riders performed one lap at race pace on 26, 27.5 and 29 inch wheeled mountain bikes. sEMG and acceleration (RMS) were recorded for the full lap and during ascent and descent phases at the gastrocnemius, vastus lateralis, biceps brachii and triceps brachii. No significant main effects were found by wheel size for each of the four muscle groups for sEMG or acceleration during the full lap and for ascent and descent (P > .05). When data were analysed between muscle groups, significant differences were found between biceps brachii and triceps brachii (P < .05) for all wheel sizes and all phases of the lap with the exception of for the 26 inch wheel during the descent. Findings suggest wheel diameter has no influence on muscle activity and vibration during mountain biking. However, more activity was observed in the biceps brachii during 26 inch wheel descending. This is possibly due to an increased need to manoeuvre the front wheel over obstacles.

KeywordsCycling; Mountain biking; Electromyography; Vibration
Year2016
JournalJournal of Sports Sciences
PublisherTaylor & Francis
ISSN1466447X
Digital Object Identifier (DOI)https://doi.org/10.1080/02640414.2016.1215497
Web address (URL)http://hdl.handle.net/10545/621434
hdl:10545/621434
Publication dates01 Aug 2016
Publication process dates
Deposited20 Feb 2017, 15:18
Accepted15 Jul 2016
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Archived with thanks to Journal of sports sciences

ContributorsUniversity of Central Lancashire
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