photo 3A Cold Plunge after training often reduces recovery times! Many coaches and trainers recommend a 3 to 5 minute Cold Plunge (62°F – 64°F) to reduce traumas caused by training, including Delayed Onset Muscle Soreness. Athletes should not normally train in water warmer than 85 degrees because of the risk of thermal fatigue! Cold Aqua Therapy is often used by athletes as a preventative measure for injuries, i.e. Shin Splints and Plantar Fasciitis.