A COMPUTER METHOD FOR STUDYING THE POSTEXERCISE BALLISTOCARDIOGRAM,
Abstract
The postexercise ballistocardiogram has been shown to be a useful diagnostic tool but has its limitations because of artifacts which result from muscle tremor and respiratory movement, especially if the exercise is vigorous. An electronic system incorporating a small computer previously suggested for clearing electrocardiographic records of artifacts has been applied to the recording of low frequency ballistocardiograms obtained before and after standardized exercise. Evaluation of the postexercise tracings as to accurate reproduction and good quality shows this system to be feasible for use in a large scale postexercise ballistocardiographic study. The system presented also lacks the complexity of the one used with electrocardiograms. Any difficulties in reproduction were found to be those inherent in the ballistocardiographic apparatus rather than in the system itself. Lines for further investigation are pointed out. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1966
- Accession Number
- AD0647410
Entities
People
- David H. Jackson
- Efrain A. Molina
Organizations
- Naval Aerospace Medical Institute