Velocity production in elite BMX riders: a field based study using a SRM power meter

Journal article


Rylands, Lee, Roberts, Simon J., Cheetham, M. and Baker, Adam 2013. Velocity production in elite BMX riders: a field based study using a SRM power meter. Journal of Exercise Physiologyonline.
AuthorsRylands, Lee, Roberts, Simon J., Cheetham, M. and Baker, Adam
Abstract

The aim of this study was to analyze the production of velocity in bicycle motocross (BMX) compared to other cycling disciplines. Six elite BMX riders, 5 males and 1 female who competed and trained regularly for a period of 12 yrs ± 2 agreed to take part in this study. Each rider performed 3, 50-m sprint tests and a single 200 m fatigue test. The riders’ peak power, fatigue index, power to weight ratio, and cycling revolution per minute were analyzed using a Schoberer Rad Messtechnik (SRM) BMX power meter. The BMX riders’ peak power and power to weight ratio were all found to be similar to those in other sprint cycling events. Peak power outputs of 1539 ± 148 W and 1030 W were recorded with mean power to weight ratios of 21.29 ± 0.84 W·kg-1 and 16.65 W·kg-1 . The BMX riders’ power fatigue index was found to be higher than other sprint events as riders fatigued at a greater rate. Mean fatigue index was 61.19 ± 5.97 W·sec-1 for the male riders and 53.04 W·sec-1 for the female rider. A notable finding of this study was the relationship of cycling cadence (rev·min-1 ), peak power (Watts) and velocity (mi·h-1 ). This relationship suggests once a BMX rider achieves peak power their pedaling cadence becomes the major contributory factor to velocity production.

The aim of this study was to analyze the production of velocity in bicycle motocross (BMX) compared to other
cycling disciplines. Six elite BMX riders, 5 males and 1 female who
competed and trained regularly for a period of 12 yrs ± 2 agreed to
take part in this study. Each rider performed 3, 50-m sprint tests and a
single 200 m fatigue test. The riders’ peak power, fatigue index, power
to weight ratio, and cycling revolution per minute were analyzed using
a Schoberer Rad Messtechnik (SRM) BMX power meter. The BMX
riders’ peak power and power to weight ratio were all found to be
similar to those in other sprint cycling events. Peak power outputs of
1539 ± 148 W and 1030 W were recorded with mean power to weight
ratios of 21.29 ± 0.84 W·kg-1 and 16.65 W·kg-1
. The BMX riders’
power fatigue index was found to be higher than other sprint events
as riders fatigued at a greater rate. Mean fatigue index was 61.19 ±
5.97 W·sec-1 for the male riders and 53.04 W·sec-1 for the female
rider. A notable finding of this study was the relationship of cycling
cadence (rev·min-1
), peak power (Watts) and velocity (mi·h-1
). This
relationship suggests once a BMX rider achieves peak power their
pedaling cadence becomes the major contributory factor to velocity
production.

KeywordsCycling; Bicycle motocross; Fatigue; Power
Year2013
JournalJournal of Exercise Physiologyonline
PublisherAmerican Society of Exercise Physiologist
ISSN10979751
Web address (URL)http://hdl.handle.net/10545/621431
hdl:10545/621431
Publication datesJun 2013
Publication process dates
Deposited20 Feb 2017, 12:19
ContributorsUniversity of Derby
File
File Access Level
Open
File
File Access Level
Open
Permalink -

https://repository.derby.ac.uk/item/92x0y/velocity-production-in-elite-bmx-riders-a-field-based-study-using-a-srm-power-meter

Download files

  • 96
    total views
  • 34
    total downloads
  • 7
    views this month
  • 2
    downloads this month

Export as

Related outputs

Profiling of translational and rotational head accelerations in youth BMX with and without neck brace.
Hurst, Howard Thomas, Rylands, Lee, Atkins, Stephen, Enright, Kevin and Roberts, Simon J. 2017. Profiling of translational and rotational head accelerations in youth BMX with and without neck brace. Journal of Science and Medicine in Sport. https://doi.org/10.1016/j.jsams.2017.05.018
Influence of wheel size on muscle activity and tri-axial accelerations during cross-country mountain biking
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
The effect of mountain bike wheel size on cross-country performance.
Hurst, Howard Thomas, Sinclair, Jonathan, Atkins, Stephen, Rylands, Lee and Metcalfe, John 2016. The effect of mountain bike wheel size on cross-country performance. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2016.1215498
Variability in laboratory vs. field testing of peak power, torque, and time of peak power production among elite bicycle motocross cyclists
Rylands, Lee, Roberts, Simon J. and Hurst, Howard Thomas 2015. Variability in laboratory vs. field testing of peak power, torque, and time of peak power production among elite bicycle motocross cyclists. Journal of Strength and Conditioning Research. https://doi.org/10.1519/JSC.0000000000000884
Relationship between starting and finishing position in World Cup BMX racing
Rylands, Lee and Roberts, Simon J. 2014. Relationship between starting and finishing position in World Cup BMX racing. International Journal of Performance Analysis in Sport.
Effect of gear ratio on peak power and time to peak power in BMX cyclists.
Rylands, Lee, Roberts, Simon J. and Hurst, Howard Thomas 2016. Effect of gear ratio on peak power and time to peak power in BMX cyclists. European Journal of Sport Science. https://doi.org/10.1080/17461391.2016.1210237
Effect of cadence selection on peak power and time of power production in elite BMX riders: A laboratory based study.
Rylands, Lee, Roberts, Simon J., Hurst, Howard Thomas and Bentley, Ian 2016. Effect of cadence selection on peak power and time of power production in elite BMX riders: A laboratory based study. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2016.1215491
The effect of "pumping" and "nonpumping" techniques on velocity production and muscle activity during field-based BMX cycling
Rylands, Lee, Hurst, Howard Thomas, Roberts, Simon J. and Graydon, Robert W. 2017. The effect of "pumping" and "nonpumping" techniques on velocity production and muscle activity during field-based BMX cycling. Journal of Strength and Conditioning Research. https://doi.org/10.1519/JSC.0000000000001499
The psychology of dynamic balance and peak performance in sport: correction theory
Cowen, A., Nesti, Mark and Cheetham, M. 2014. The psychology of dynamic balance and peak performance in sport: correction theory. Quest. https://doi.org/10.1080/00336297.2014.936620