My parkrun PB is 29 minutes - today's parkrun - my 89th- took me 47:30.
A couple of years ago I was in the US and bought a pair of Brooks Pure Drift 2 running shoes in a discount store. They are extremely lightweight, flexible minimalist style shoes. They have an insert which gives them a 4mm heel/toe drop which can be removed for a zero heel/toe drop. I have mostly run in NIKE Free5's with an 8mm drop - but I have also owned and ran in Saucony Kinvaras with a 4 mm drop. I am aware of the why's and wherefore's of running in low drop shoes. Most of my days are spent shoeless so, really, a low drop shoe should not worry me. But I have never liked these Brooks shoes - they are very comfortable on my feet but feel very "strange" when walking or running in them. I get the feel that they are trying to realign my legs/ankles/knees. Today I decided I would try them out in a 5k parkrun. At the 1klm mark, I started to struggle - at the halfway mark I had to stop and by 3 klms I had to take the shoes off and walk the rest!!! My legs from the ankle up were really hurt - my breathing was high - now after a 4 hour rest back at home, I feel quite sore in the legs from ankle to knee. Anyway these shoes are going in the bin!!! But I am left wondering WTF happened ? Why are these so comfortable fitting shoes impossible for me to run in?? BTW - I am a mid to forefoot runner with a highish cadence. Anybody else experienced anything like this???
On the same issue -- All men's walking and dress shoes have built up heels. The average black pumps/dress shoes have probably 1 inch heels (in the old day they were made out of leather with leather soles as well.) As humans were not born with built up heels, I am wondering what the history of this is?