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Comparison of the influence of age on cycling efficiency and the energy cost of running in well-trained triathletes
- Source :
- European journal of applied physiology. 116(1)
- Publication Year :
- 2015
-
Abstract
- Locomotive efficiency is cited as an important component to endurance performance; however, inconsistent observations of age-related changes in efficiency question its influence in the performance of masters athletes.This study examined locomotive efficiency in young and masters triathletes during both a run and cycle test.Twenty young (28.5 ± 2.6 years) and 20 masters (59.8 ± 1.3 years) 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. Additionally, body fat percentage was determined using skin-fold assessment.During the cycle and run, VO2max was lower in the masters (48.3 ± 5.4 and 49.6 ± 4.8 ml kg(-1) min(-1), respectively) compared with young (61.6 ± 5.7 and 62.4 ± 5.2 ml kg(-1) min(-1), respectively) cohort. Maximal running speed and the cycling power output corresponding to VO2max were also lower in the masters (15.1 ± 0.8 km h(-1) and 318.6 ± 26.0 W) compared with the young (19.5 ± 1.3 km h(-1) and 383.6 ± 35.0 W) cohort. Cycling efficiency was lower (-11.2%) in the masters compared with young cohort. Similar results were observed for the energy cost of running (+10.8%); however, when scaled to lean body mass, changes were more pronounced during the run (+22.1%).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.
- Subjects :
- Adult
Male
medicine.medical_specialty
Aging
Sports medicine
Physiology
Energy (esotericism)
Running
03 medical and health sciences
Young Adult
0302 clinical medicine
Oxygen Consumption
Heart Rate
Physiology (medical)
Component (UML)
medicine
Economics
Humans
Orthopedics and Sports Medicine
Aged
Public Health, Environmental and Occupational Health
030229 sport sciences
General Medicine
Human physiology
Environmental economics
Middle Aged
Bicycling
Athletes
Energy cost
Masters athletes
Body Composition
Exercise Test
Physical Endurance
Female
Cycling
Energy Metabolism
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 14396327
- Volume :
- 116
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- European journal of applied physiology
- Accession number :
- edsair.doi.dedup.....2e9160526d36df4f1f75862156a49473