Physiological profile of elite Bicycle Motocross cyclists and physiological-perceptual demands of a Bicycle Motocross race simulation.

Petruolo, A; Connolly, DR; Bosio, A; Induni, M; Rampinini, E

Physiological profile of elite Bicycle Motocross cyclists and physiological-perceptual demands of a Bicycle Motocross race simulation.

Petruolo, A Connolly, DR Bosio, A Induni, M Rampinini, E

Permalink

Publisher:: EDIZIONI MINERVA MEDICA
Publication Type:: Journal Article
Citation:: The Journal of sports medicine and physical fitness, 2020, 60, (9), pp. 1173-1184
Issue Date:: 2020-09

Closed Access

	Filename	Description	Size
	Petruolo A et al_2021_J Sports Med Phys Fitness_Physiological profile of elite Bicycle Motocross.pdf	Published version	677.42 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Petruolo, A
dc.contributor.author	Connolly, DR
dc.contributor.author	Bosio, A
dc.contributor.author	Induni, M
dc.contributor.author	Rampinini, E
dc.date.accessioned	2021-03-31T23:22:56Z
dc.date.available	2021-03-31T23:22:56Z
dc.date.issued	2020-09
dc.identifier.citation	The Journal of sports medicine and physical fitness, 2020, 60, (9), pp. 1173-1184
dc.identifier.issn	0022-4707
dc.identifier.issn	1827-1928
dc.identifier.uri	http://hdl.handle.net/10453/147765
dc.description.abstract	<h4>Background</h4>This study aimed to investigate the physiological profile of elite Bicycle Motocross (BMX) cyclists and assess the physiological and perceptual demands of a simulated BMX race. In addition, the neuromuscular fatigue induced by BMX race simulation was investigated.<h4>Methods</h4>Twelve male elite BMX cyclists performed two testing sessions. On the first day, incremental submaximal and maximal cycling tests were performed, as well as baseline measurements of muscle contractile qualities, a vertical jump test, short sprint cycling test and Wingate test. Following a recovery period of 48 h, athletes race performance times, physiological intensity and fatigue were determined before and after each heat (4 in total) via muscular evaluations, blood samples and perceptual ratings.<h4>Results</h4>During testing, cyclists attained a V̇O<inf>2max</inf> of 55.7±4.8 ml min<sup>-1</sup> kg<sup>-1</sup>; peak power output during a short cycling sprint of 1498±189 W and average during Wingate of 1344±158 W; counter movement jump peaks were 58.6±7.7 cm (height), 4625±768 W (power) and 64.3±7.5 N kg<sup>-1</sup> (force). During the BMX race simulation performance times improved slightly and perceived exertion increased, blood lactate and hydrogen ions concentrations significantly increased across heats while bicarbonate concentrations decreased (P<0.001). Similarly, significant decreases were observed for contractile properties (peak torque, P<0.001; maximal rate of torque development and relaxation, both P<0.001) at single and paired stimulations (10 and 100 Hz) across heats.<h4>Conclusions</h4>Elite BMX cyclists show high anaerobic characteristics (Wingate and sprint) and neuromuscular qualities (height and power jump), while the aerobic qualities are not comparable to those typical of road cyclists. BMX races appear to induce metabolic disturbance, peripheral fatigue and increase perceived exertion, however performance times across heats appears not to be affected.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	EDIZIONI MINERVA MEDICA
dc.relation.ispartof	The Journal of sports medicine and physical fitness
dc.relation.isbasedon	10.23736/s0022-4707.20.10855-7
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0913 Mechanical Engineering, 1106 Human Movement and Sports Sciences
dc.subject.classification	Sport Sciences
dc.subject.mesh	Humans
dc.subject.mesh	Lactic Acid
dc.subject.mesh	Exercise Test
dc.subject.mesh	Oxygen Consumption
dc.subject.mesh	Muscle Fatigue
dc.subject.mesh	Bicycling
dc.subject.mesh	Adult
dc.subject.mesh	Male
dc.subject.mesh	Athletic Performance
dc.subject.mesh	Young Adult
dc.subject.mesh	Adult
dc.subject.mesh	Athletic Performance
dc.subject.mesh	Bicycling
dc.subject.mesh	Exercise Test
dc.subject.mesh	Humans
dc.subject.mesh	Lactic Acid
dc.subject.mesh	Male
dc.subject.mesh	Muscle Fatigue
dc.subject.mesh	Oxygen Consumption
dc.subject.mesh	Young Adult
dc.title	Physiological profile of elite Bicycle Motocross cyclists and physiological-perceptual demands of a Bicycle Motocross race simulation.
dc.type	Journal Article
utslib.citation.volume	60
utslib.location.activity	Italy
utslib.for	0913 Mechanical Engineering
utslib.for	1106 Human Movement and Sports Sciences
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
utslib.copyright.status	closed_access	*
dc.date.updated	2021-03-31T23:22:55Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	60
utslib.citation.issue	9

Abstract:

Background

This study aimed to investigate the physiological profile of elite Bicycle Motocross (BMX) cyclists and assess the physiological and perceptual demands of a simulated BMX race. In addition, the neuromuscular fatigue induced by BMX race simulation was investigated.

Methods

Twelve male elite BMX cyclists performed two testing sessions. On the first day, incremental submaximal and maximal cycling tests were performed, as well as baseline measurements of muscle contractile qualities, a vertical jump test, short sprint cycling test and Wingate test. Following a recovery period of 48 h, athletes race performance times, physiological intensity and fatigue were determined before and after each heat (4 in total) via muscular evaluations, blood samples and perceptual ratings.

Results

During testing, cyclists attained a V̇O2max of 55.7±4.8 ml min^-1 kg^-1; peak power output during a short cycling sprint of 1498±189 W and average during Wingate of 1344±158 W; counter movement jump peaks were 58.6±7.7 cm (height), 4625±768 W (power) and 64.3±7.5 N kg^-1 (force). During the BMX race simulation performance times improved slightly and perceived exertion increased, blood lactate and hydrogen ions concentrations significantly increased across heats while bicarbonate concentrations decreased (P<0.001). Similarly, significant decreases were observed for contractile properties (peak torque, P<0.001; maximal rate of torque development and relaxation, both P<0.001) at single and paired stimulations (10 and 100 Hz) across heats.

Conclusions

Elite BMX cyclists show high anaerobic characteristics (Wingate and sprint) and neuromuscular qualities (height and power jump), while the aerobic qualities are not comparable to those typical of road cyclists. BMX races appear to induce metabolic disturbance, peripheral fatigue and increase perceived exertion, however performance times across heats appears not to be affected.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/147765