You have to buy loads of new kit. And wear it. Even if the weather is good so that for a road race you would just wear the usual shorts and vest, competitors in trail races wear jackets and hats and gloves all the time...
If you're just running round the local footpath then the only thing extra you need is a section of the 1:25000 scale os plan to navigate. And trail shoes when it gets muddy in the winter.
DT - Would that extra run be at the expense of a cross training session or additional?
Skinny - I would like it to be around 50, but that's probably unlikely, particularly without a long long run. If i can keep it mid-high 40s most weeks I'll be happy. Of course I keep saying I'm going to introduce a regular cross training session, but I never keep it up for more than a few weeks.
Skinny - with hindsight Saturday's session was probably a bit to hard. I've decided to do one session or race per week and try to keep mileage quite high and throw in some strides quite regularly. That was the basic marathon approach and I felt quite comfortable with that. Slight change in emphasis of the sessions for shorter distance, so for example, this weeks will be 4*1mkle at 10k pace.
Pete - congrats on the double pb.