Research on cold water swimming and core temperature
An interesting new study by Tara Diversi and colleagues in Extreme Physiology & Medicine.
Core temperature rate of decline was slower in the first 3 h compared to the last 3 h of the swim. Older age was significantly correlated to TC change and SR change. Absolute and percentage body fat (BF) were not significantly associated with higher TC. Mean SR over the 6-h swim was 57.8 spm (range 48–73 spm), and a significant decline in SR was observed over the 6 h. A strong, positive correlation was found between SR change between 3 and 6 h and TC over the 6 h and TC from 3–6 h.