According to biomechanical estimates increases the stress on the calves and hälsenor at framfotalöpning and this is the technology used in running in barefoot shoes or minimalist shoes. If you have (or had?) in these areas, you should avoid to run in these shoes. On the other hand, can fit if you are healthy in these areas. However, if you have trouble with the knee joint, it may be worth testing.
You should not change the shoes which are very different from