Running for fitness or competition might sound like a easy sport, yet up to 50 % of all runners can get some kind of injury each year. This injury might be relatively minor and they run through the injury until it improves or it may be significant enough for them to have to stop running or jogging. The most frequent cause of these injuries is that they merely over did the distances ran. They ran too much before the body is given time to adapt or get used to the distances being run. Each time that a load is applied to the body it is essential to give it a rest before you apply another load by going for another run. If too much load is applied before recovery from a earlier training session, any damage get exacerbated and this might progress into an injury. Rest is just as important as the training runs and that is how fitness and strength is increased and is also how injury is averted.
As well as the too much too soon issue, biomechanics also plays a role. This is the way that we run and different athletes do it in a different way. Different running techniques can load different tissues in a different way and load some tissues too much, so that when running that may be enough to result in a running injury. For example, disorders such as medial tibial stress syndrome (shin splints) can occur when the width between the foot placement when running is too narrow. Those with this problem can benefit from running with a wider base of gait. Another common biomechanical problem in runners can be tight calf muscles. When running this causes the arch of the foot to collapse or flatten and may result in a a range of injuries such as plantar fasciitis to medial tibial stress syndrome to runners knee. These people will benefit the most from a calf muscle stretching rehab plan. The management of running injuries depends on the cause and really should be directed at the cause, whether its biomechanics to training load issues.