Indoor 16.1-km time-trial performance in cyclists aged 25- 63 years

James Balmer, Steve Bird, Richard Davison

Research output: Contribution to journalArticle

Abstract

In this study, we assessed age-related changes in indoor 16.1-km cycling time-trial performance in 40 competitive male cyclists aged 25-63 years. Participants completed two tests: (1) a maximal ramped Kingcycle ergometer test, with maximal ramped minute power (RMPmax, W) recorded as the highest mean external power during any 60 s and maximal heart rate (HRmax, beats min(-1)) as the highest value during the test; and (2) an indoor Kingcycle 16.1-km time-trial with mean external power output (W), heart rate (beats min(-1)), and pedal cadence (rev min(-1)) recorded throughout the event. Results revealed age-related declines (P < 0.05) in absolute and relative time-trial external power output [(24 W (7.0%) per decade], heart rate [7 beats min(-1) (3.87%) per decade], and cadence [3 rev min(-1) (3.1%) per decade]. No relationships (P > 0.05) were observed for mean power output and heart rate recorded during the time-trial versus age when expressed relative to maximal ramped minute power and maximal heart rate respectively. Strong relationships (P < 0.05) were observed for maximal ramped minute power and time-trial power (r= 0.95) and for maximal heart rate and time-trial heart rate (r= 0.95). Our results show that indoor 16.1-km time-trial performance declines with age but relative exercise intensity (%RMPmax and %HRmax) does not change.

Original languageEnglish
Pages (from-to)57-62
Number of pages6
JournalJournal of Sports Sciences
Volume26
Issue number1
DOIs
Publication statusPublished - 1 Jan 2008
Externally publishedYes

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Keywords

  • Kingcycle
  • external power output
  • cycling
  • ageing

Cite this

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title = "Indoor 16.1-km time-trial performance in cyclists aged 25- 63 years",
abstract = "In this study, we assessed age-related changes in indoor 16.1-km cycling time-trial performance in 40 competitive male cyclists aged 25-63 years. Participants completed two tests: (1) a maximal ramped Kingcycle ergometer test, with maximal ramped minute power (RMPmax, W) recorded as the highest mean external power during any 60 s and maximal heart rate (HRmax, beats min(-1)) as the highest value during the test; and (2) an indoor Kingcycle 16.1-km time-trial with mean external power output (W), heart rate (beats min(-1)), and pedal cadence (rev min(-1)) recorded throughout the event. Results revealed age-related declines (P < 0.05) in absolute and relative time-trial external power output [(24 W (7.0{\%}) per decade], heart rate [7 beats min(-1) (3.87{\%}) per decade], and cadence [3 rev min(-1) (3.1{\%}) per decade]. No relationships (P > 0.05) were observed for mean power output and heart rate recorded during the time-trial versus age when expressed relative to maximal ramped minute power and maximal heart rate respectively. Strong relationships (P < 0.05) were observed for maximal ramped minute power and time-trial power (r= 0.95) and for maximal heart rate and time-trial heart rate (r= 0.95). Our results show that indoor 16.1-km time-trial performance declines with age but relative exercise intensity ({\%}RMPmax and {\%}HRmax) does not change.",
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Indoor 16.1-km time-trial performance in cyclists aged 25- 63 years. / Balmer, James; Bird, Steve; Davison, Richard.

In: Journal of Sports Sciences, Vol. 26, No. 1, 01.01.2008, p. 57-62.

Research output: Contribution to journalArticle

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AU - Davison, Richard

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