Wednesday night is interval night at the moment.
Supposedly intervals are good for increasing speed, and aerobic capacity, and also give your fast twitch muscles a bit of a work out.
They just seem to make me really really tired!
Just to rub it in is the realisation that the speed I can just about manage to produce for 1 minute at a time.....is a speed some people can keep up for a whole marathon.
Ho Hum.
They also boost the body's production of Epo :-)
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