I've come across hot-cold therapy a few times over the years as a method for enhancing recovery. Something about flushing lactic acid I think. However, I've never seen references to studies and/or the optimal way/timing for it. What Ive picked up as a habit is in a post-workout shower I start with warm/hot water and finish with the coldest setting.
I've heard of athletes using ice cold tubs and alternating back and forth etc. but I was wondering if anyone has looked further into this and can share or point to some info.