Hi everyone,
Thanks so much for all the nice comments and questions!
Having a bit of a manic day at work today, then off to a hearing this evening that doesn't even start until 6pm (!) then back at the office tomorrow morning before the staff xmas meal tomorrow evening...
What I'm trying to say is that I might be a teensy bit rushed over the next two days - please bear with me, I will answer everyone's questions and chuck up a post or two about my first couple of training runs 
Ten, just a quick one as you said you would be doing some acceleration strides later today:
When I asked Sam to explain, she said:
"So, acceleration strides: these are a good way of 'bridging the gap'
between a jog warm up and faster running, say, in an interval/speed
session or even to just do at the end of an easy run to 'remind' your
legs to keep turning over nice and quick.
Start at a pace you consider steady/brisk and count 8 strides
(paces) then accelerate for another 8 paces, accelerate again for
another 8 and finish with a final 8 by which point you should be
running fast (but not all-out sprinting). Focus on good form
throughout - nice tall posture, feet turning over quickly and not
overstriding (ie. sticking your leg out too far in front - look at Mo,
and think of all the 'action' being in the back of the stride, when
the leg extends behind)."
Hope that helps!