Load on the human body can be influenced by shoes and surfaces which i
s important both in sports and rehabilitation. The loading which can p
rimarily be influenced are impact situations and friction as well as t
he stability of the foot. This stability is of main interest in the pr
evention of pain and injury. However, a certain amount of loading is n
ecessary to improve strength and structure of biological materials. In
the past, the development of shoe and surface materials has hardly be
en perceived under this aspect, but may be increasingly important in t
he future.