– for example your stride may get longer. But unless you're categorically doing something that's "wrong" and/or going to cause you an injury, I think best just to stick with what you've got. Take a look at any runners in races - there are all sorts of weird

warmed up. From my experience, your theory of a long warm up is correct. It will be interesting to see what others think. – Chieftan TankConvention suggests that a couple of miles' easy running plus four or five 100m stride-outs is what's needed, for both

submitted by users, using your postcode. Seems to be very accurate from my experience. It's free, but you do have to register. – dibPedometers rely on you being able to maintain constant stride length. That's not as easy as it sounds. I found that I