I have been seeing more posterior tibial tendonitis lately. If I did not know any better, I would say it was getting more common. This would be consistent with the increased interest in barefoot or minimalist running. This running technique which is a forefoot strike compared to a rearfoot strike makes the posterior tibial muscle work harder, so no wonder that posterior tibial tendonitis is becoming more common with the trend to these types of running techniques (which also include the Chi ad Pose forms). The symptoms of posterior tibial tendonitis are generally felt just above and/or just below the medial malleolus and sometimes down into the arch of the foot. The treatment or posterior tibial tendonitis is to reduce the workload of the posterior tibial muscle. This usually means foot orthotics and reverting to heel or rearfoot striking. The rearfoot striking may only need to be temporary and a transition can be made back to the forefoot after the problem as resolved.