Breathing variability at rest is positively associated with 24-h blood pressure level.

ABSTRACT:

Background

Previous research has reported that inhibition of breathing can be observed in hypertensive patients at rest during the daytime, as well as in sleep at night. The present study hypothesized that the variability of breathing and end-tidal CO(2) (PetCO(2)) in seated women at rest is positively associated with their 24-h blood pressure level.

Methods

Breath-to-breath measures of breathing rate and tidal volume were recorded via inductive plethysmography in each of 54 women during two 20-min sessions of seated rest, and in 32 women during night time sleep. PetCO(2) was also recorded during these sessions via a respiratory gas monitor. Ambulatory blood pressure was recorded for 24 h between the two clinic sessions via oscillometry.

Results

Breath pauses >10 s we

SUBMITTER: Anderson DE 

PROVIDER: S-EPMC2752321 | biostudies-literature | 2008 Dec

REPOSITORIES: biostudies-literature