In a recent meta-analysis, Goulet et al. (2007) reported that on
average, studies comparing the effect of GIH and WIH administered
24 mL/kg BW of fluid with 1.1 g/kg BW of glycerol, which
compares favourably well with the amount of fluid and glycerol administered in the current study. It was further reported that the
average amount of fluid retained 136 min after the onset of hyperhydration
was 12.9 mL/kg BW with GIH and 5.2 mL/kg BW with
WIH. These results are in close agreement with those of the present
study, as fluid retention reached 10.9 and 4.7 mL/kg BW at the
140-min mark with GIH and WIH, respectively. The congruence
between the aforementioned findings and those found in the literature
likely implies that valid and meaningful inferences can be
made from the fluid retention results obtained from our SIH trial