Effect of pedaling cadence on muscle ...
Document type :
Article dans une revue scientifique
PMID :
Permalink :
Title :
Effect of pedaling cadence on muscle oxygenation during high-intensity cycling until exhaustion: a comparison between untrained subjects and triathletes
Author(s) :
Zorgati, Houssem [Auteur]
Collomp, Katia [Auteur]
Boone, Jan [Auteur]
Guimard, Alexandre [Auteur]
Buttelli, Olivier [Auteur]
Mucci, Patrick [Auteur]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Amiot, Virgile [Auteur]
Prieur, Fabrice [Auteur]
Collomp, Katia [Auteur]
Boone, Jan [Auteur]
Guimard, Alexandre [Auteur]
Buttelli, Olivier [Auteur]
Mucci, Patrick [Auteur]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Amiot, Virgile [Auteur]
Prieur, Fabrice [Auteur]
Journal title :
European journal of applied physiology
Abbreviated title :
Eur. J. Appl. Physiol.
Volume number :
115
Pages :
2681-2689
Publication date :
2015-12-01
ISSN :
1439-6319
English keyword(s) :
Performance
Near-infrared spectroscopy
Pedal rate
Pedal frequency
Muscle oxygenation
Aerobic fitness
Near-infrared spectroscopy
Pedal rate
Pedal frequency
Muscle oxygenation
Aerobic fitness
HAL domain(s) :
Sciences du Vivant [q-bio]
English abstract : [en]
OBJECTIVE: The aim of this study was to compare the muscle oxygenation between trained and untrained subjects during heavy exercise until exhaustion at two extreme pedaling cadences using a NIRS system.
METHODS: Nine ...
Show more >OBJECTIVE: The aim of this study was to compare the muscle oxygenation between trained and untrained subjects during heavy exercise until exhaustion at two extreme pedaling cadences using a NIRS system. METHODS: Nine untrained male subjects and nine male competitive triathletes cycled until exhaustion at an intensity corresponding to 90 % of the power output achieved at peak oxygen uptake at 40 and 100 rpm. Gas exchanges were measured breath-by-breath during each exercise. Muscle (de)oxygenation was monitored continuously by near-infrared spectroscopy on the Vastus Lateralis. RESULTS: Muscle deoxygenation (∆deoxy[Hb + Mb], i.e., O2 extraction) and ∆total[Hb + Mb] were significantly higher at 40 rpm compared to 100 rpm during the exercise in untrained subjects but not in triathletes (p < 0.05). The time performed until exhaustion was significantly higher at 40 than at 100 rpm in untrained subjects (373 ± 55 vs. 234 ± 37 s, respectively) but not in triathletes (339 ± 69 vs. 325 ± 66 s). CONCLUSIONS: These results indicate that high aerobic fitness (1) allows for better regulation between [Formula: see text]O2M and VO2M following the change in pedaling cadence, and (2) is the most important factor in the relationship between pedaling cadence and performance.Show less >
Show more >OBJECTIVE: The aim of this study was to compare the muscle oxygenation between trained and untrained subjects during heavy exercise until exhaustion at two extreme pedaling cadences using a NIRS system. METHODS: Nine untrained male subjects and nine male competitive triathletes cycled until exhaustion at an intensity corresponding to 90 % of the power output achieved at peak oxygen uptake at 40 and 100 rpm. Gas exchanges were measured breath-by-breath during each exercise. Muscle (de)oxygenation was monitored continuously by near-infrared spectroscopy on the Vastus Lateralis. RESULTS: Muscle deoxygenation (∆deoxy[Hb + Mb], i.e., O2 extraction) and ∆total[Hb + Mb] were significantly higher at 40 rpm compared to 100 rpm during the exercise in untrained subjects but not in triathletes (p < 0.05). The time performed until exhaustion was significantly higher at 40 than at 100 rpm in untrained subjects (373 ± 55 vs. 234 ± 37 s, respectively) but not in triathletes (339 ± 69 vs. 325 ± 66 s). CONCLUSIONS: These results indicate that high aerobic fitness (1) allows for better regulation between [Formula: see text]O2M and VO2M following the change in pedaling cadence, and (2) is the most important factor in the relationship between pedaling cadence and performance.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Univ. Littoral Côte d’Opale
Univ. Artois
Université de Lille
Univ. Artois
Université de Lille
Research team(s) :
Activité Physique, Muscle, Santé (APMS)
Submission date :
2019-09-24T10:01:14Z