i'm not quite sure where the idea comes from that (properly) relaxed hair reverts...it doesn't. only straightened naturals have to worry about reversion. relaxing is a chemical process and you can't revert the chemical. i've never letting the timing of a relaxer (either before or after) impact my exercise schedule. i've noticed no difference whatsoever.
hope this is helpful and sorry you didn't get more responses. i hate when that happens..