Superior endurance performance in aging mountain runners.
BACKGROUND
Oxygen uptake at the anaerobic threshold (VO(2)AT) is considered as the main determinant for endurance performance in humans. Endurance performance steeply decreases with aging but seems to be kept exceedingly high in elite mountain runners.


METHODS
To obtain the age- and gender-related upper limits of endurance performance in this sport, we analyzed the results of the World Masters Athletic Championships in Mountain Running 2007. Additionally, to investigate the relationship between the individual VO(2)AT values and running times, laboratory tests were performed in 10 mountain runners.


RESULTS
The World Championships race times of the first 5 finishers of the 5-year age groups did not differ significantly from 35 to 49 years. The corresponding mean (+/- SD) values of the VO(2)AT were 68.0 +/- 1.7 ml/min/kg in males and 58.1 +/- 1.9 ml/min/kg in females. In the following age groups up to 70+ there was a decrease in the VO(2)AT of 29.1% in males and 33.9% in females.


CONCLUSIONS
Thus, at the beginning of the 3rd millennium, elite mountain runners demonstrate that VO(2)AT and probably also VO(2max) may be held at top levels in humans up to the age of 45-49 years in both sexes. Despite the following decrease, endurance capacity remains about 3.5-fold higher in elite mountain runners up to 70+ years when compared to their untrained peers.
Burtscher
Martin
M
Department of Sport Sciences, Medical Section, University of Innsbruck, Innsbruck, Austria. martin.burtscher@uibk.ac.at
Förster
Holger
H
Burtscher
Johannes
J
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D015308:Anaerobic Threshold / Q000502:physiology*; D001317:Austria; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009051:Mountaineering / Q000502:physiology*; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology*; D012420:Running / Q000502:physiology; D012737:Sex Factors