[Effects of swimming with a wet suit on energy expenditure during subsequent cycling].
The aim of this study was to investigate the effects of swimming with a wetsuit on energy expenditure during subsequent cycling. Nine well-trained triathletes underwent three submaximal trials. The first trial (SC) consisted of a 750-m swim realised at a competition pace, followed by a 10-min cycling exercise at a power output corresponding to the ventilatory threshold . The two other trials were composed of the same cycling exercise, preceded either by a 750-m swim with a wetsuit (WSC) or by a cycling warm-up (Ctrl). The main results are that the WSC trial was characterised by significantly lower swimming cadence (-14%), heart rate (-11%), and lactate values (-47%) compared to the SC trial, p < 0.05. Moreover, cycling efficiency was significantly higher in the WSC trial compared to the SC trial (12.1% difference, p < 0.05). The lower relative intensity observed during swimming with a wetsuit suggest the relative importance of swimming condition on the total performance in a sprint triathlon.
Delextrat
Anne
A
Laboratoire Ergonomie Sportive et Performance, EA 3162, Université de ToulonVar, Avenue de l'Université, BP 132, 83957 LaGarde, France.
Bernard
Thierry
T
Hausswirth
Christophe
C
Vercruyssen
Fabrice
F
Brisswalter
Jeanick
J
D000328:Adult; D015308:Anaerobic Threshold; D001642:Bicycling / Q000502:physiology; D004734:Energy Metabolism; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D010101:Oxygen Consumption / Q000502:physiology; D010807:Physical Endurance; D011482:Protective Devices; D015656:Respiratory Mechanics; D012420:Running; D019876:Sports Equipment; D013550:Swimming / Q000502:physiology
D019344:Lactic Acid
Port de combinaison et depense energetique lors d'un enchaînement natation-cyclisme.