More sympathy from me for living in London, however you may find some ideas on this website :-

http://www.runista.co.uk/news/trail-...-north-london/

Whilst a tread mill is ok you must remember that it can not replicate the true effort required out on the hill e.g. on the tready every footfall will be the same, unlike on the hill where every footfall will be different and using a far greater range of muscle and tendons which will not have used on the tready.

In a nutshell you need to train as many muscle groups as possible(but you knew that already)to build your core strength and the only way to do that is on the trails, hopefully you may fin some ideas in the link but you must make the most of your time in the lakes.


The very best of luck to you Bud