This study explored whether anthropometric measures influence magnitude of skin cooling following exposure to whole body cryotherapy (WBC). Height, weight, body fat percentage, and lean mass were measured in 18 male and 14 female participants. Body surface area, body surface area to mass ratio, body mass index, fat-free mass index, and fat mass index were calculated. Thermal images were captured before and after WBC (-60 degrees C for 30 seconds, -110 degrees C for 2 minutes). Skin temperature was measured at the chest, arm, thigh, and calf. Mean skin temperature before and after WBC and change in mean skin temperature (DeltaT sk) were calculated. DeltaT sk was significantly greater in females (12.07 +/- 1.55 degrees C) than males (10.12 +/- 1.86 degrees C; t(30) = -3.09, P = .004). A significant relationship was observed between body fat percentage and DeltaT sk in the combined dataset (P = .002, r = .516) and between fat-free mass index and DeltaT sk in males (P = .005, r = .622). No other significant associations were found. Skin response of individuals to WBC appears to depend upon anthropometric variables and sex, with individuals with a higher adiposity cooling more than thinner individuals. Effects of sex and anthompometrics should be considered when designing WBC research or treatment protocols.
Hammond, LE, Cuttell, S, Nunley, P and Meyler, J. (2014) “Anthropometric characteristics and sex influence magnitude of skin cooling following exposure to whole body cryotherapy”. Biomed Res Int 2014 628724.
Full Article : http://www.ncbi.nlm.nih.gov/pubmed/25061612