Table 1: Pearson’s correlations between different measures of functional reserve: maximum isometric pressure and age.

Functional reserve measureUnit of measurementMaximum isometric pressure (MIP)Age
Pearson’s correlationSignificance (2-tailed)Pearson’s correlationSignificance (2-tailed)

MIP minus maximum water swallow pressuresmm Hg.814.000 −.304 .007
% MIP.314.005−.104.368
MIP minus mean water swallow pressuresmm Hg.910.000 −.359 .001
% MIP.320.005 −.107.354
MIP minus maximum regular effort saliva swallow pressuresmm Hg.796.000 −.250.031
% MIP.453.000 −.042.716
MIP minus mean regular effort saliva swallow pressuresmm Hg.899.000 −.312 .006
% MIP.493.000 −.078.500
Maximum effortful minus maximum regular effort saliva swallow pressuresmm Hg.285.013n/an/a
Maximum effortful minus mean regular effort saliva swallow pressuresmm Hg.325.004n/an/a

Correlations with > 0.4 are shown in bold.