This week's problem is one that many runners will recognise: How do you cope with being a "beginner" again after injury?"I used to be a half-decent runner. I've run seven marathons with a PB of 3:36, and loads of half marathons and 10Ks

total beginner. I'm looking to build lung capacity and cardio-vascular fitness rather than calorie-burning. I run on a treadmill rather than road, and it's part of my gym programme which mostly consists of resistance machines. I'm a non-smoker, 5

Ease into your running planHave you had a chance to look at the beginners' training plans on this site (the grey training tab at the top)? Going straight in to three 30-min sessions is quite a strong start, and it's important not to get injured at this stage