January 1, 1982Journal of Applied Physiology

Summated circulatory responses of thermal and baroreflexes in humans

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Why the study?

Does simultaneous activation of thermal and baroreflexes result in additive circulatory responses in normal men?

Structured PICO

Does simultaneous activation of thermal and baroreflexes result in additive circulatory responses in normal men?

Population

13 normal men (20-27 yr)

Intervention

Simultaneous activation of cardiopulmonary/arterial baroreceptors (via lower body negative pressure [LBNP] and leg elevation [LE]) and local thermal receptor stimulation (hand immersion [HI] in 10 degree C water)

Comparator

Individual activation of these reflexes (LBNP/LE alone or HI alone)

Outcome

Circulatory responses (forearm vascular resistance, stroke volume, cardiac index, blood pressure, heart rate, total peripheral resistance)surrogate

Simultaneous activation of thermal and baroreflexes produces simple additive circulatory responses in all variables except heart rate, suggesting a central interaction for heart rate control.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Cautions against extrapolating additive reflexes to patients; leaves open central heart rate integration mechanisms in disease.

Cite This Study

Ebert et al. (1982) studied this question.

synapsesocial.com/papers/6a728205e5469ee92be27130 https://doi.org/10.1152/jappl.1982.52.1.184

View Full Paper

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Summated circulatory responses of thermal and baroreflexes in humans

Structured PICO

Discussion

Implication

Cite This Study

Summated circulatory responses of thermal and baroreflexes in humans

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider