Clinical evaluation of the ballistocardiogram

The Ballistocardiogram in the Diagnosis of Coronary Arterial Disease

“…The higher proportion of abnormal ballistocardiograms in the older age groups has also been commented on by Pordy et al (1951), Scarborough et al (1952) and Starr and Mayock (1948). Scarborough et al (1952) concluded that the increase was simply related to age and paralleled the changes found in normal subjects: they suggested that an abnormal ballistocardiogram had little or no significance in patients over 60 years of age.…”

Relationship of the Natural Body Damping and Body Frequency to the Ballistocardiogram

“…A standard statistical analysis of the results showed that body frequency was not correlated to age or normal anthropometric measurements. 4. Body damping correlated significantly with age but not with normal body measurements.…”

A Ballistocardiographic Study of Healthy Young Adult Males

“…'-2 The ballistocardiograph, therefore, has been recommended as a diagnostic tool in the evaluation of the cardiovascular system. In order to define the normal and to test the reliability of the ballistocardiogram as an indicator of heart disease, a number of surveys of apparently normal subjects have been undertaken.2' U, 14,15,16,18,20,26 In subjects over the age of 40, abnormal records are common. From 10 to 20 per cent of individuals in the fifth decade, 22 to 43 per cent in the sixth decade, and 50 to 90 per cent in the seventh decade and older are reported to have abnormal records.…”