October 1, 2002Journal of Applied Physiology
Vestibulosympathetic reflex during mental stress
Key result
Combined head-down rotation and mental stress additively increased muscle sympathetic nerve activity and mean arterial pressure in healthy volunteers.
Why the study?
Does combined vestibular and mental stimulation have an additive effect on sympathetic neural activation and arterial pressure in healthy volunteers?
Population
10 healthy volunteers
Comparison
Combined head-down rotation and mental stress vs Head-down rotation alone and mental stress alone
Design
Other
Authors
Discussion
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Member takes
Implication
No immediate clinical implications from healthy volunteer data; leaves open additive sympathetic effects in disease states.
Structured PICO
Does combined vestibular and mental stimulation have an additive effect on sympathetic neural activation and arterial pressure in healthy volunteers?
P
Population
10 healthy volunteers evaluated for sympathetic neural activation and arterial pressure during vestibular and mental stimulation.
I
Intervention
Combined head-down rotation (HDR) and mental stress (MS; using arithmetic)
C
Comparator
Head-down rotation (HDR) alone and mental stress (MS) alone
O
Outcome
Muscle sympathetic nerve activity (MSNA), arterial pressure, and heart ratesurrogate
Combined vestibular and mental stimulation produces an additive increase in muscle sympathetic nerve activity and arterial pressure in healthy humans.
Cite This Study
Carter et al. (2002) studied Healthy (n=10). Combined head-down rotation (HDR) and mental stress (MS) vs. HDR alone and MS alone was evaluated on Muscle sympathetic nerve activity (MSNA). Combined head-down rotation and mental stress additively increased muscle sympathetic nerve activity and mean arterial pressure in healthy volunteers.