One of the most frustrating things for any runner is injury. At this time you feel okay in yourself, but one part of your body isn't strong enough to let you run. At this point it is important to find a way to keep your fitness up, particularly your aerobic fitness.

Often runners have lower limb injuries, due to the nature of running and can struggle to find other ways of keeping fit. Swimming and cycling are both useful for this, as are a wide race of pieces of gym equipment. It is usually possible to find some way of keeping fit that you can manage.

More regularly now, runners are looking to compliment their running with some cross-training, particularly away from their racing seasons, in an attempt to avoid injuries - especially overuse ones.

The pieces of equipment below are ones that will help you to maintain / improve your cardiovascular fitness. It is hard to say which is the best, although generally we'd suggest going for one that allows you to raise your pulse the most, so the more you work your body as a whole the better.

The various types of cross-training equipment a runner can use in a gym are