Reliability and validity of physiological data obtained within a cycle-run transition test in age-group triathletes.

Détails

ID Serval
serval:BIB_3C3E1946597B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Reliability and validity of physiological data obtained within a cycle-run transition test in age-group triathletes.
Périodique
Journal of Sports Science and Medicine
Auteur⸱e⸱s
Vleck V., Millet G.P., Alves F.B., Bentley D.J.
ISSN
1303-2968 (Electronic)
ISSN-L
1303-2968
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
11
Numéro
4
Pages
736-744
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
This study examined the validity and reliability of a sequential "Run-Bike-Run" test (RBR) in age-group triathletes. Eight Olympic distance (OD) specialists (age 30.0 ± 2.0 years, mass 75.6 ± 1.6 kg, run VO2max 63.8 ± 1.9 ml· kg(-1)· min(-1), cycle VO2peak 56.7 ± 5.1 ml· kg(-1)· min(-1)) performed four trials over 10 days. Trial 1 (TRVO2max) was an incremental treadmill running test. Trials 2 and 3 (RBR1 and RBR2) involved: 1) a 7-min run at 15 km· h(-1) (R1) plus a 1-min transition to 2) cycling to fatigue (2 W· kg(-1) body mass then 30 W each 3 min); 3) 10-min cycling at 3 W· kg(-1) (Bsubmax); another 1-min transition and 4) a second 7-min run at 15 km· h(-1) (R2). Trial 4 (TT) was a 30-min cycle - 20-min run time trial. No significant differences in absolute oxygen uptake (VO2), heart rate (HR), or blood lactate concentration ([BLA]) were evidenced between RBR1 and RBR2. For all measured physiological variables, the limits of agreement were similar, and the mean differences were physiologically unimportant, between trials. Low levels of test-retest error (i.e. ICC <0.8, CV<10%) were observed for most (logged) measurements. However [BLA] post R1 (ICC 0.87, CV 25.1%), [BLA] post Bsubmax (ICC 0.99, CV 16.31) and [BLA] post R2 (ICC 0.51, CV 22.9%) were least reliable. These error ranges may help coaches detect real changes in training status over time. Moreover, RBR test variables can be used to predict discipline specific and overall TT performance. Cycle VO2peak, cycle peak power output, and the change between R1 and R2 (deltaR1R2) in [BLA] were most highly related to overall TT distance (r = 0.89, p < 0. 01; r = 0.94, p < 0.02; r = 0.86, p < 0.05, respectively). The percentage of TR VO2max at 15 km· h(-1), and deltaR1R2 HR, were also related to run TT distance (r = -0.83 and 0.86, both p < 0.05).
Pubmed
Web of science
Création de la notice
24/10/2013 12:12
Dernière modification de la notice
20/08/2019 13:32
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