A quantitative method for studying human arterial baroreflexesA new system is described that delivers precise, stereotyped pressure changes to the human neck and elicits neurally-mediated heart rate changes. The centerpiece of this system is a Silastic chamber that is strapped to the anterior neck. This chamber is connected to a stepping-motor-controlled bellows assembly. A strain-gauge transducer measures the intensity of pressure changes. The entire system is controlled by microprocessors, and both stimuli and responses are displayed on a digital oscilloscope. The end-product of this system is a reproducible baroreceptor stimulus-cardiac response relation that can be recorded rapidly and safely in astronauts in space.
Document ID
19920039253
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eckberg, Dwain L. (Medical Coll. of Virginia Richmond, VA, United States)
Fritsch, Janice M. (Virginia Medical College, Richmond, United States)
Goble, Ross L. (Engineering Development Laboratory, Inc. Newport News, VA, United States)