Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Rollerblading and skating are fun (and nostalgic!) ways to mix up your fitness ...

In the '30s and '40s you needed shoes to roller skate, because the skates fastened onto your shoes. You had a skate key, which tightened the skates onto the shoes. You wore the skate key around your ...