Warming to the ice bath: Don't go cool on cold water immersion just yet!: Comment on: 1) Arthur J. Cheng. Cooling down the use of cryotherapy for post-exercise skeletal muscle recovery. Temperature. 2018; 5(2): 103-105. doi: 10.1080/23328940.2017.1413284. 2) Cheng et al. Post-exercise recovery of contractile function and endurance in humans and mice is accelerated by heating and slowed by cooling skeletal muscle. Journal of Physiology. 2017; 595(24): 7413-7426. doi: 10.1113/JP274870.