"... for all except top pro athletes, all the age-related aggravating and mitigating factors more or less offset up to the age of 50." (For triathlon.) Good news for us old farts.
Medium pace running (Threshold) 20:26 [3] 5.1 km (4:00 / km) +26m3:54 / km max:182
The second cycle of Season 2003 begins! Goal: Cal Intl Marathon.
This was an easy-ish pace stroll through the levees, interrupted by tying a shoe. Felt unnatural: had to think a lot about how to move the lower limbs, it somehow stopped happening naturally.