Every year there are thousands of races in Britain, ranging from 5K charity jogs to ultra events and with options over trail, countryside, fell, track and road. Some runners cram in races every weekend, but if you want to maximise your
training so you peak in time for a race. What, when and why?Until the Soviet sports scientists got on board, athletes trained at the same intensity all year round. As well as being deeply boring, the constant pressure and physiological demand on the body