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Related Experiment Video

Updated: Jun 4, 2026

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

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Baroreflex sensitivity in acute hypoxia and carbohydrate loading.

Matjaž Klemenc¹, Petra Golja

¹Department of Cardiology, General Hospital Dr. Franc Derganc, Padlih borcev 13a, Sempeter pri Gorici, Slovenia. matjaz.klemenc@bolnisnica-go.si

European Journal of Applied Physiology

|March 2, 2011

Summary

Carbohydrate loading decreased baroreflex sensitivity (BRS) in both normal and low-oxygen conditions, indicating it does not improve blood pressure regulation during hypoxia despite increasing sympathetic activity.

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A Model to Simulate Clinically Relevant Hypoxia in Humans

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

Area of Science:

Physiology
Cardiovascular Regulation
Sports Nutrition

Background:

Hypoxia impairs baroreflex sensitivity (BRS), potentially causing syncope.
Carbohydrate loading can influence sympathetic activity and blood pressure regulation.

Purpose of the Study:

To investigate the effect of carbohydrate loading on blood pressure regulation, specifically BRS, under normoxic and hypoxic conditions.

Main Methods:

Fourteen subjects underwent two experiments involving normoxia and hypoxia.
Carbohydrate or water was ingested.
Continuous monitoring of blood pressure and heart rate determined BRS.

Main Results:

Carbohydrate loading reduced BRS in both normoxia and hypoxia compared to water.
Heart rate increased post-carbohydrate loading, indicating sympathetic activation.
BRS reduction was more pronounced in hypoxia.

Conclusions:

Oral carbohydrate loading does not enhance blood pressure regulation during hypoxia.
Further research is needed on different carbohydrate loading methods without significant postprandial blood shifts.