Accession Number:

AD0607534

Title:

AN INVESTIGATION OF THE APPLICATION OF SPATIAL VECTORELECTROCARDIOGRAPHY TO PROBLEMS OF CENTRAL CARDIOVASCULAR SYSTEM CONSTRAINT.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Westhorp,David Clifford

Report Date:

1964-08-01

Pagination or Media Count:

58.0

Abstract:

The purpose of this study was to investigate methods to determine heart position under conditions of vibration by using vectorelectrocardiographic techniques. An experiment to validate a theory is described, based on conductivity inhomogeneities of tissues surrounding the heart and proposing amplitude modulation of electrocardiographic waveform frequency components under conditions of sinusoidal vibration. Results are presented which show that frequency analysis of the waveform does not yield the desired displacement information due to lack of physiological standardization. A proposed method of extending Ernest Franks mirror image cancellation method to vibration problems by using time sampling and computer data reduction is presented. Author

Descriptors:

• *CARDIOVASCULAR SYSTEM
• VIBRATION
• ELECTROCARDIOGRAPHY
• VIBRATION
• HEART
• TISSUES(BIOLOGY)
• MUSCLES
• AMPLITUDE MODULATION
• ACCELERATION
• EQUATIONS
• MATHEMATICAL MODELS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE