Just to add, for those that supinate (foot rolls towards the outside) you may find that after skating, you have pain on the outside of your lower leg. This is due to the peroneus longus muscle fighting to keep the skate blade straight or on the inside edge during the push of the stride. Until you correct the biometrics of that leg, stretching before you skate helps alleviate the pain, the following stretch was what helped me a lot.