Optimized soccer training thanks to increased muscle activation and joint stabilization Soccer may indeed be the favorite sport of Germans, but unfortunately is one that's often accompanied by injuries. The shoes are tight, the tread narrow and the greatest stress is generally on the outer edges of the foot. The consequences include frequent sprains, torn ankle ligaments, knee pain, pulled hamstrings or even torn ACLs. Also, the knees are put under a great deal of stress due to quick stops and rotational movements. Sensorimotor foot orthoses help soccer players optimize their training. By virtue of their principle of action, these orthotics stabilize your ankles, calves and Achilles tendons as well as relaxing and providing relief to your knees..