I’ve posted before about this, I can probably run at 12 kph as “ easily” as I ever have, within reason.
It’s the top end speed that has gone… probably forever I guess.
We need to remember that it’s natural and normal to slow down quite literally over 50, there are lots of factors involved, testosterone loss, skeletal strength, recovery systems, blood, oxygen efficiency etc etc.
Basically it’s called old age.
It’s why we race in age groups, there are outliers but look at the results from 50-55 compared to 55-60.
In several races they are quite dramatic, lots of people seem to stop racing at 60, injury? CBA? Dead ?!
The old adage keep moving forward is all we can do, I’m finding I’m generally slower, especially with top end bike power, mine is now verging on crap.
Factors which seem to help include diet, adequate or rather more rest, regular thought out training, strength training, rest days, supplements and a common one is running every other day.
I’m mostly enjoying the journey still, but am having weeks we’re I loose motivation but still hit big hours on average, covid/ lockdown maybe?
I actually enjoy tough circuits more than anything these days … wether they gelp tri stuff I have no idea?!