Heart rate variability of a posture change from sitting or supine to standing position
نویسندگان
چکیده
منابع مشابه
Modeling Cerebral Blood Flow Control During Posture Change From Sitting to Standing
Hypertension, decreased cerebral blood flow, and diminished cerebral blood flow velocity regulation, are among the first signs indicating the presence of cerebral vascular disease. In this paper, we will present a mathematical model that can predict blood flow and pressure during posture change from sitting to standing. The mathematical model uses a compartmental approach to describe pulsatile ...
متن کاملShort-term spectral analysis of heart rate variability during supine-standing-supine test in patients with paroxysmal atrial fibrillation.
The aim of the study was to assess the sympathovagal balance in group of 27 patients without significant structural heart disease after an attack of atrial fibrillation. The investigation was performed using spectral analysis of heart rate variability during examination under conditions of different orthostatic loads in single phases, called the supine-standing- supine test. The findings were c...
متن کاملA study of variation in cardiocirculatory parameters with different body positions during isometric exercise in young adult males.
Introduction: To study the effects of exercise, how important it is to choose a posture? We aimed to characterize the possible impact of different body positions on cardiovascular parameters during and after sustained isometric handgrip (IHG) exercise. Materials and Methods: Cross sectional study was carried out in 33 young adult males (mean age: 19.21±1.083 years). We recorded Bloo...
متن کاملCentral volume expansion is pivotal for sustained decrease in heart rate during seated to supine posture change.
During prolonged, static carotid baroreceptor stimulation by neck suction (NS) in seated humans, heart rate (HR) decreases acutely and thereafter gradually increases. This increase has been explained by carotid baroreceptor adaptation and/or buffering by aortic reflexes. During a posture change from seated to supine (Sup) with similar carotid stimulation, however, the decrease in HR is sustaine...
متن کاملEffect of posture on heart rate variability in school children.
Heart rate variability (HRV) refers to the beat-to-beat alteration in cardiac cycle length. The objective is to study effect of posture on HRV. Five minutes ECG of children (12 females and 20 males) with mean height 138.88 +/- 11.88 cm, weight 27.66 +/- 5.87 kg and BMI 16.11 +/- 1.38 kg/m(2) were recorded in supine, sitting and standing position. HRV parameters were compared by one-way ANOVA an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Japanese journal of ergonomics
سال: 1996
ISSN: 0549-4974,1884-2844
DOI: 10.5100/jje.32.supplement_74