ENDURANCE – TRIATHLON – BIKE & RUN EFFICIENCY – MASTERS


1 RESEARCH ARTICLE


COMPARISON OF THE INFLUENCE OF AGE ON CYCLING EFFICIENCY AND ENERGY COST OF RUNNING IN WELL-TRAINED TRIATHLETES – 2016


Peiffer J1, Abbiss CR2, Sultana F3, Bernard T3, Brisswalter J3,4
PURPOSE:
– Examine locomotive efficiency in young and masters triathletes during both a run and cycle test
METHODS:
– 28 young (28.5 ± 2.6 yrs) and 20 masters (59.8 ± 1.3 yrs) triathletes
– Completed an incremental cycling and running test to determine maximal aerobic consumption (VO2max) and the first ventilatory threshold (VT1)
– Participants then completed 10-min submaximal running and cycling tests at VT1 during which locomotive efficiency was calculated from expired ventilation
– Body fat percentage was determined using skin-fold assessment
RESULTS:
1. During the cycle and run, VO2max was lower in the masters (48.3 ± 5.4 and 49.6 ± 4.8) compared with young (61.6 ± 5.7 and 62.4 ± 5.2)
2. Maximal running speed and cycling power output corresponding to VO2max were lower in masters compared with young
3. Cycling efficiency was lower (-11.2%) in the masters compared with young cohort.
4. Similar results were observed for the energy cost of running (+10.8%)
5. however, when scaled to lean body mass, changes were more pronounced during the run (+22.1%)
CONCLUSIONS:
– Within trained triathletes, ageing can influence efficiency in both the run and cycle discipline
– While disregarded in the past, efficiency should be considered in research examining performance in ageing athletes


 

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