Aging, Fitness, and Marathon Times in a 91 Year-old Man Who Competed in 627 Marathons Generally, it is known that the maximum oxygen uptake decreases with increasing age.However, this acceptance with endurance training can be kept a bit. An American group has studied a 91-year-old man who has went a total of 627 marathons and 117 ultramarathons for 42 years.At the age of 48 he started with the marathon, his best times remained constant about 240 minutes between 50 and 64 years.Then the times rose to about 260 minutes to about 70, then it came to a progressive increase up to 90. Between 80 and 90 his marathon times were 600 minutes.The maximum oxygen uptake fell between 68 and 89 years from 43 ml / kg / min to 20 ml / kg / min.
It showed a correlation between marathon times and maximum oxygen uptake. This interesting case report can be found under https://www.ncbi.nlm.nih.gov/pmc/articles/pmc4538980/