ISSN:
1619-7089
Keywords:
Psychological stress
;
ejection fraction
;
Hemodynamics
;
Exercise
;
Nuclear medicine
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The left ventricular ejection fraction (EF) was studied in 17 healthy volunteers with a new ambulatory left ventricular function monitor. Heart rate, EF, and blood pressure measurements were made during rest, a psychiatric stress interview, cold exposure, exercise, and eating. An increase in EF was seen during emotional stress (from 0.45±0.09 to 0.51±0.13, P〈0.001). This increase was comparable to that observed during exercise (0.52±0.14) and eating (0.52±0.10, P〈0.001). In contrast, cold exposure caused a decrease in EF (0.43±0.13, P〈0.05). These observations demonstrate the powerful hemodynamic consequences of common behaviors as well as the utility and feasability of studying such behavioral factors in ambulatory subjects.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00252610
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