Key result
Head flexion in the prone position significantly decreased forearm blood flow compared to the reference position (3.2 vs 3.8 ml/min/100ml; P<0.05).
Why the study?
Do otolithic and neck mechanoreceptors control limb blood flow, mean arterial pressure, and heart rate in healthy subjects?
Population
12 healthy subjects
Comparison
Head flexion and extension in two body positions vs Reference head position
Design
Other
Authors
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May influence limb blood flow via neck/otolithic inputs; hypothesis-generating and should not yet change practice.
Cross-Sectional (n=12)
Do otolithic and neck mechanoreceptors control limb blood flow, mean arterial pressure, and heart rate in healthy subjects?
Absolute Event Rate: 3.2% vs 3.8%
p-value: p=< 0.05
Otolithic and neck mechanoreceptors exert significant influences over cardiovascular parameters including limb blood flow, mean arterial pressure, and heart rate.
Normand et al. (1997) conducted a cross-sectional in Healthy (n=12). Head flexion vs. Reference head position was evaluated on Forearm blood flow (FBF) in prone position (ml.min-1.100 ml-1) (p=< 0.05). Head flexion in the prone position significantly decreased forearm blood flow compared to the reference position (3.2 vs 3.8 ml/min/100ml; P<0.05).
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