ISSN:
1619-1560
Keywords:
Upright tilt
;
Blood pressure
;
Heart rate
;
Male
;
Female
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The heart rate and blood pressure responses to head-up tilt of 80 degrees was studied in 20 normal men and 21 normal women aged 20–50 years (mean age 31.1 ± 7.1 years). The heart rate increase in females during tilt was 73% that of males, whereas the increase in diastolic pressure during tilt was 29% of males. Expressed in relation to values obtained supine, heart rate increases on average 30.3% in men as compared to 21.5% in women whereas diastolic pressure increases by 15.2% in men as compared to an increase of only 4.3% in women. The data indicates that the cardiovascular response of normal females to upright tilt differs significantly from that of normal males. This attenuated responsiveness to ortho-stasis in women relative to men may predispose women to postural insufficiency and may account for the predominance of symptomatic women with clinically mild dysautonomia.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01818960
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