We are not saying that you need to have the flexibility of a gymnast, but many injuries are caused in athletics by a lack of range of movement in the major muscles used when running.

Muscles to pay particular attention to are fairly obvious ones in terms of running. This need to be done on a continual basis as training tightens muscles and can cause injuries.

The main muscles to work on a the calf (both with bent and straight legs - to get gastronemius and soleus), hamstring, gluts and quadriceps.