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Does weight force application to the lower torso have an influence on inferior vena cava and cardiovascular parameters?

Authors
Journal
The American Journal of Emergency Medicine
0735-6757
Publisher
Elsevier
Publication Date
Volume
26
Issue
5
Identifiers
DOI: 10.1016/j.ajem.2007.08.017
Disciplines
  • Medicine

Abstract

Abstract Objective The aim of this study was to determine whether weight force application to the lower torso can lead to impairment of inferior vena cava (IVC) and cardiovascular parameters. Methods Using ultrasound sonography and impedance cardiography, the effects of a weight force application of 5, 10, 15, and 25 kg to the lower torso, placed in prone position, on IVC diameter and maximal blood flow, mean artery pressure, stroke volume, heart rate, cardiac index, cardiac output, oxygen saturation (Sp o 2), and acceleration index were investigated in 6 healthy volunteers. Results The following parameters showed a statistically significant correlation with the amount of weight force applied: IVC diameter: r=−0.83, P < .001; IVC maximal blood flow: r=−0.76, P < .001; cardiac index: r=−0.33, P < .05; and cardiac output: r=−0.32, P < .05. Conclusion Application of moderate weight force to the lower torso can lead to major changes in IVC parameters and minor changes in cardiovascular parameters.

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