PMC3781908_01
Room temperature and relative humidity of the climate chamber as a function of race time.. Note: Arrows indicate points during the race when the athlete was allowed to leave the chamber in order to undergo a medical examination.
oajsm-3-131Fig1.jpg
PMC3781908_01_oajsm-3-131Fig1.jpg
f1-oajsm-3-131
Tambient was set at -45 C at the start and continuously increased to +55 C (Figure 1) at a rate of 1 C per 4.5-minute interval.
Fluid intake and energy during the marathon run.
oajsm-3-131Fig2.jpg
PMC3781908_01_oajsm-3-131Fig2.jpg
f2-oajsm-3-131
Intake of food and drinks was recorded to estimate the fluid and energy intake in a cumulative histogram (Figure 2).
Relative humidity in the climate chamber as well as skin temperature taken at the head (A), hand (B), and ankle (C), and body core temperature (D) as a function of room temperature.. Notes: Arrows indicate points during the race when the athlete was allowed to leave the chamber in order to undergo a medical examination. X indicates external cooling (one 0.8 L bottle of water at room temperature poured over the athlete's head and body).
oajsm-3-131Fig3a.jpg
PMC3781908_01_oajsm-3-131Fig3a.jpg
f3-oajsm-3-131
Tcore in the rectum was encased in a silicone capsule and packed into a fingerstall. The sensors used to measure Tskin were fixed using textile ribbons on defined spots. The sensors were evaluated by EndoTherm Control software (www.endotherm.ch) and showed a temperature variation of +-0.1 C (Figure 3).