Magnitude-based inferences during water immersion (WI), post-WI and after the recovery period (POST-REC) for ln rMSSD, mRR, SD1 and SD2 in cold WI (CWI), temperate WI (TWI) and hot WI (HWI).

All inferences were calculated comparing the water immersion strategy with the CTRL condition. mRR: mean R-R intervals; ln rMSSD: normal logarithm of the square root of the mean of the sum of the squares of differences between adjacent normal R–R intervals; SD1: instantaneous beat-to-beat variability; SD2: continuous beat-to-beat variability. Magnitude-based inferences during water immersion (WI), post-WI and after the recovery period (POST-REC) for ln rMSSD, mRR, SD1 and SD2 in cold WI (CWI), temperate WI (TWI) and hot WI (HWI).