3.3. Plasma Volume and Plasma Osmolality
±
HEAT
While still exposed to the two forms of heat stress and mild body mass exchanges (i.e., question 1), both passive and active heat stress reduced PV (When subsequently seated in a neutral environment at a 3% nett BM loss (i.e., question 2), PV was reduced to a greater extent in passive DEHydration (Addressing question 3, the PV was reduced 6.4 ± 1.6% more following passive than active heat stress (Following the 2-h recovery period (i.e., question 4), recovery of PV showed no reliable difference between active and passive heat stress trials or hydration statuses (