Accession Number:

AD0614789

Title:

BIOTELEMETRY OF THE TRIAXIAL BALLISTOCARDIOGRAM AND ELECTROCARDIOGRAM IN A WEIGHTLESS ENVIRONMENT,

Descriptive Note:

Corporate Author:

NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA

Report Date:

1964-09-08

Pagination or Media Count:

108.0

Abstract:

Biotelemetry instrumentation was developed to record the cardiac-originated inertial accelerations of a subject freely floating in the weightless environment realized in a jet aircraft flying a Keplerian trajectory. The weightless state served as an ideal suspension system and allowed unrestricted motion of the subject with six degrees of freedom. The report describes in detail the design and development of the Constraint Platform with attached Biotelemetry Module used to transduce, signal condition, and telemeter the physiological measurements. A similar description is given of the airborne receiving station used to receive, display, and store the telemetered data. Linear and angular acceleration measurements were performed with this equipment and the results represent the first recording of a triaxial inertial acceleration ballistocardiogram. Triaxial electrocardiographic data were simultaneously measured and telemetered to permit correlation of the mechanical and electrical events of the cardiac complex. The linear acceleration patterns were also displayed in loop form and in a three-dimensional arrangement to facilitate interpretation of their spatial relationship. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE