cramister wrote:
You think a lack of activity at a younger age could make easy paces slower along the board, which explains why a more sedentary generation could have slower easy runs overall
Could be something as simple as mismeasured courses etc
Just a quick thought not much put into it
Mismeasured courses? Definitely for many but there have always been people who are very meticulous about measuring their courses accurately. But sure, there were always guys thinking they were running 6:30s who were closer to 7:00 because their 10 mile course was really 9.5.
One thing I have noticed in my 54 years in the sport is that there is a LOT more emphasis now on recovery days and easy running. We pretty much had the idea that we were training every day. Some days we were training harder and others we were training easier and maybe as a consequence we were not willing to run real, real, slow, if only for fear of being mocked. And the Lydiard quote from that time was the one about not usually running slower than 7:00. The one about it not being possible to run too slowly but it being possible to run too fast was decades in the future.
I think the other thing was that over time as more and more examples of people training slowly and racing well turned up the question of whether you were really running if you were going much slower than 7:00 pace was clearly resolved and the answer was a definite yes. I know of a guy in his mid 40s who could run mid 15:00s/31:00 s for 5 and 10 km who NEVER went under 9:00 pace and sometimes went above 10:00. I have a friend who did a fair amount of running with Henry Rono, I did it myself once, and I will say that based on that information it is almost impossible to believe the OP is doing his easy runs too slowly.