Reflecting on posture
Why the study?
Does active standing alter peripheral resistance and wave reflection differently in young versus older healthy individuals?
Population
Healthy young (mean age 29 years) and older (mean age 53 years) individuals
Comparison
Active standing (postural shift from supine) vs Supine position
Design
Editorial
Authors
Discussion
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Member takes
Implication
This editorial highlights findings that postural shifts from supine to standing reduce wave reflection despite increased peripheral resistance, independent of age, while noting methodological limitations that require further study.
Structured PICO
Does active standing alter peripheral resistance and wave reflection differently in young versus older healthy individuals?
P
Population
Healthy young (mean age 29 years) and older (mean age 53 years) individuals
I
Intervention
Active standing (postural shift from supine)
C
Comparator
Supine position
O
Outcome
Changes in peripheral resistance and wave reflectionsurrogate
This editorial highlights findings that postural shifts from supine to standing reduce wave reflection despite increased peripheral resistance, independent of age, while noting methodological limitations that require further study.
Limitations
- No information on concomitant changes in arterial stiffness through assessment of pulse wave velocity
- Aortic pressure and flow were not measured directly but determined from distal, noninvasive finger pressure measurement
- Effect of heart rate on augmentation index was accounted for using a relation determined in supine participants
Cite This Study
Avolio et al. (2011) studied this question.