Ri. Harikkhan et al., DETERMINANTS OF MAXIMAL INSPIRATORY PRESSURE - THE BALTIMORE LONGITUDINAL-STUDY OF AGING, American journal of respiratory and critical care medicine, 158(5), 1998, pp. 1459-1464
Citations number
27
Categorie Soggetti
Emergency Medicine & Critical Care","Respiratory System
A variety of methods for subject selection and test procedures have be
en used for the determination of normal values and reference equations
for maximal inspiratory pressure (MIP). In the cross-sectional study
described here, we made MIP measurements on 668 men and women in the B
altimore Longitudinal Study of Aging (BLSA), using a standardized elec
tronic procedure. Results were combined with spirometric and anthropom
etric measurements. After subjecting them to rigorous health screening
, we analyzed a well-defined, healthy subgroup of 139 men and 128 wome
n with a wide age range (20 to 90 yr), using multiple linear regressio
n, for the purpose of determining the effect of age, other correlates,
normal values, and gender-specific reference equations for MIP. The g
ender effect was strong, with the average MIP values of the men being
about 30% higher than those of the women (101 cm H2O and 72 cm H2O, re
spectively). The reference equation for men is: MIP +/- standard error
of the estimate (SEE) = 126 - 1.028 x age + 0.343 x weight (kg) +/- (
22.4); and for women: MIP +/- SEE = 171 - 0.694 x age + 0.861 x weight
(kg) -0.743 x height (cm) +/- (18.5). These equations may be used for
the assessment of inspiratory muscle strength.