I'm glad I read this thread, it has inspired me to do some running while on holiday last week.
After focusing on cycling pretty much exclusively these last three months, I found on just a gentle jog out with my GF (testing her finger shoes
) that downhill runs caused some kinda pressure/cramping where my quad and hamstring meet on my inside legs about 6 inches back from my knee. Spooked the living daylights out of me, and I swore there and then to cross train religiously.
Anyway went on my 10k practice route (no downhill sections) day before yesterday, and fingers crossed no recurrence of the problem. Went well, gettting 44.30 minutes, improving my PB on this route by 1.30 minutes. So the cycling fitness does translate, but at a cost.
All interesting stuff.
...and Thanks Brum Jim for bringing my attention back to this lovely sport. Now signed up for a 10k with the GF in October. Time to get serious about training!
Annoyingly, she ran a 5k race on Sunday, came fourth at 22 minutes. Having done no training in over a year!