1 Wear racing shoes to feel faster. 2  A race day is different from your other running days, and it's natural to want to make it feel special. 3  You eat more carefully on race day, dress in lighter running clothes, and warm up more thoroughly. 4  If you like the feel of sleek, speedy racing shoes on race days, go for it.
FDA's mandate is to ensure safety and efficacy of all products it regulates, in contrast to some other regulatory agencies, which are concerned mainly with safety. For devices that go through the PMA approval pathway, FDA is evaluating each device for safety and efficacy on its own terms.
Medical device is not to be for a use in supporting or sustaining human life, for a use which is of substantial importance in preventing impairment of human health, and does not present a potential unreasonable risk of illness or injury.