Runner Bean ,
thanks for the advice. I suppose I just feel that speed work/tempo running sounds confusing to me and we don't actually do that on club nights so would have to descipline myself to do on my own, probably around the streets near my home many of which are unlit as semi countryside.
But to be honest I think it is no more than as you say interval running,and I have on a few occassions done that when out on a Sat or Sunday morning but probably did the intervals wrong , eg did 7mins ( about one mile) then one minute jog/easy and did this about 4 times, so ran about 5/6 miles in total, but probably my pace for the 7 mins was only just a min or two better than my normal pace , so not enough of a difference. I think I therefore need to make them shorter , as you say 1 min to 4mins with recovery jogs , but maybe not covering so many miles in total.
I feel 100% sure that this will improve my times/speed on the range of runs from 5k upwards. I just need to start making it a regular pattern to my weekly running and now I have put that in writing ,no more excuses! , I will start this weekend after tonights Club run which will probably be 8 miles steady pace - about one hour.
I am supposed to be working now but can't get motivated for that at the moment!
thanks
B