We speculated that stroke volume would be higher and heart rate would be lower when the head and upper trunk were mainly upright in the Fowler’s position. We therefore analyzed the effects of three trunk postures in Fowler’s position on heart rate, blood pressure and circulatory volume.
The three trunk postures were 30° of lower and upper trunk inclination (WT30°), 30° and 60° of lower and upper trunk inclination (UT 60°), respectively and 60° of upper and lower trunk inclination (WT60°).
These findings suggested that SV and preload are higher when the upper trunk is upright (UT60°) than when the entire trunk is upright (WT60°) while in Fowler’s position.

Références bibliographiques :

Kubota S et al. Effects of trunk posture in Fowler’s position on hemodynamics. Auton Neurosci. 2015 May;189:56-9. doi: 10.1016/j.autneu.2015.01.002.

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