One nasty variable as people get older is there running economy tends to suffer. You use a lot more oxygen running as a stiff zombie.
One nasty variable as people get older is there running economy tends to suffer. You use a lot more oxygen running as a stiff zombie.
To go back to your original question the value be it 50 or 85 is the amount of Oxygen per Kg of body mass per unit of time and it is not adjusted for age. Our interpretation of a given runners max VO2 relative to their age is. So, a value of say 60 at age 20 indicates some potential but is not remarkable. That same value of 60 for a runner who is 65 years old would be very, very unusual and they might well be an exceptional masters runner capable of a sub 3 hour marathon