Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Determining physiological and performance variables during a time trial in a first category mountain pass
Year:2016
Research Areas
  • Physiology,
  • Physiology of exercise
Information
Abstract
Background: Physiology and performance of uphill time-trials (TT) in professional road cycling have been previously described (Lucia A et al., 2004; Padilla S, Mujika I, Orbañanos J, & Angulo F, 2000; Padilla S, Mujika I, Santisteban J, Impellizzeri FM, & Goiriena JJ, 2008). Recent field-based uphill trials focused on power output due to its reliability and accuracy to assess aerobic and anaerobic performance (Bossi AH, Lima P, Perrout de Lima J, & Hopker J, 2016; Vogt et al., 2008; Vogt et al., 2007). However few studies have attempted to correlate the different physiological and performances variables in field conditions. Objective: To assess the relationships among power output, velocity, cadence and oxygen uptake (VO2) during an uphill time-trial frequently used in cycling competitions. Methods: Fourteen elite road cyclists (mean±SD: 25±6 years, 174±4.2 cm, 64.4±6.1 kg) completed a field-based uphill TT in a 9.2 km first category mountain pass with a 7.1% slope. Oxygen uptake, power output, velocity and cadence were measured throughout the test. Results: During the TT mean power output and velocity were: 302±7 W (4.2±0.1 W·kg-1) and 18.7±1.6 km/h, respectively. Mean VO2 was: 3941±110 ml·min-1 (61.6±2.0 ml·kg-1·min-1). Mean power output, both absolute and relative to body mass, were strongly correlated with mean velocity (r= 0.82, for both correlations) and maximum velocity (r=0.77 and r=0.75, respectively). Strong associations were also observed between peak power output and both mean and maximum velocity (r=0.78 and r=0.80, respectively). Regarding cadence, a moderate correlation was appreciated with mean power output relative to body mass (r =0.50), whilst non significant associations were found with velocity. Finally, a moderate correlation between oxygen uptake (ml·min-1·kg-1) and power output relative to body mass was observed (r=0.42), (p < 0.001 for all correlations) Conclusion: During an uphill TT, velocity rises as a consequence of increasing power output whilst cadence and oxygen uptake do not seem as decisive in order to achieve a competitive advantage. Practical Application: This data may provide coaches and cyclists, both elite and non professional, with information to adjust training prescription accordingly, allowing them to compare their performance to an elite model.
International
Si
Congress
IX Simposio Internacional de Actualizaciones en Entrenamiento de la Fuerza
960
Place
Madrid
Reviewers
Si
ISBN/ISSN
978-84-617-6562-1
Start Date
16/12/2016
End Date
17/12/2016
From page
85
To page
87
IX SIMPOSIO INTERNACIONAL DE ACTUALIZACIONES EN ENTRENAMIENTO DE LA FUERZA / IX International Symposium in Strength Training
Participants
  • Autor: Nuria Romero Parra (UPM)
  • Autor: Ana Belen Peinado Lozano (UPM)
  • Autor: Miguel Ángel Rojo Tirado (UPM)
  • Autor: Rocio Cupeiro Coto (UPM)
  • Autor: Javier Butragueño Revenga (UPM)
  • Autor: Eliane Aparecida Castro . (UPM)
  • Autor: Fco. Javier Calderon Montero (UPM)
  • Autor: Pedro Jose Benito Peinado (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación del Laboratorio de Fisiología del Esfuerzo.
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)