Evaluation of Orthostatic Tolerance (Zur Beuteilung der Orthostatischen Toleranz)
ARMY MEDICAL INTELLIGENCE AND INFORMATION AGENCY FORT DETRICK MD
Pagination or Media Count:
Inferences can be drawn as to the stability of the circulation in an experimental subject by observing the values of such circulatory factors as pulse rate1, systolic and diastolic blood pressure RR2 and RRd in the horizontal and in the standing positions respectively. The height of the haemostatic pressure was determined its mean value for 500 subjects was 10 cm. Another possibility of determining the relative stroke volume, comparing the lying with the upright position, is based on the equivalent bodily performance in either position. It is also attempted to establish a practical numerical index OJ, which would indicate the degree of orthostatic stability or lability according to the numerical value. Similar to the performance index, a higher number is indicative of more unfavourable circulatory conditions. The final part of the study consisted in establishing correlations of the O-indices with body weight, height and age. In not a single case was there any significant correlation.
- Anatomy and Physiology