Many people blame running for many injury problems including knee and joint problems, but most of the time the problem is poor running form, ie over striding and heel landing which cause massive shock waves through the ankles,knees, hips, back and even up to the neck and head. Good technique is so important.
Here is a great guide to faster injury free running, check it out; http://teampursuitfitness.
Do you have a question?
Email Gary: gary at myotec.co.nz (Replace the "at" with @ and remove spaces). Please include any relevant background information to your question.