Aging effects on marathon performance insights from the New York City race

Abstract

Most studies on aging and marathon have analysed elite marathoners, yet the latter only represent a very small fraction of all marathon participants. Also, analysis of variance or unpaired Student's t tests are frequently used to compare mean performance times across age groups. In this report we propose an alternative methodology to determine the impact of aging on marathon performance in both non-elite and elite marathoners participating in the New York City Marathon. 471,453 data points corresponding to 370,741 different runners over 13 race editions (1999-2011) were retrieved. Results showed that: i) the effect of aging on marathon performance was overall comparable in both sexes; ii) the effect of aging differed between the fastest and the slowest runners in both sexes; and iii) the magnitude of the sex differences was higher among the slowest runners compared with the fastest ones. Current data suggests that the biological differences between sexes allow men to have a better marathon performance across most of the human lifespan.