the emergency severity index (esi) is a five-level triage system that has shown promising reliability and validity. according to esi algorithm, in the presence of danger zone respiratory rate (rr), heart rate (hr) or oxygen (o2) saturation, patients should be up-triaged from esi level 3 to 2 hence, the current study aimed to investigate the value of the measurement of vital signs in predicting ...

BACKGROUND Calculating the maximum heart rate for age is one method to characterize the maximum effort of an individual. Although this method is commonly used, little is known about heart rate dynamics in optimized beta-blocked heart failure patients. AIM The aim of this study was to evaluate heart rate dynamics (basal, peak and % heart rate increase) in optimized beta-blocked heart failure p...

Heart rate (HR) is arguably one of the most often measured physiological responses in relation to physical fitness or health. HR measured at rest, during submaximal exercise, at maximal exercise and during recovery can provide some level of assessment of fitness and health. In the past, HR was most often measured from manual palpitation of a pulse (palpation), using a stethoscope (auscultation)...

Background and objective: The peak heart rate (HRpeak) assessed in maximum laboratory tests has been used to determine the aerobic exercise intensity in field situations. However, HRpeak values may differ in field and laboratory situations, which can influence the relative intensity of the prescribed workloads. The objective of this study was to measure the HRpeak responses in laboratory and fi...

Sir, Once more correspondence columns have borne witness to the confusion caused by the Leeds exercise test. Yet again Professor Linden and his colleagues have been able to claim that their protocol has not been adhered to-and of course on this occasion they are correct in that respect.'2 They have, however, chosen to ignore other studies that have followed their protocol meticulously and that ...

Introduction: This study aims at analyzing the effect of 12 weeks physical exercise (30 minutes for three days a week: 70-85% of the maximum heart rate) on variations of inflammation markers in middle-aged women's Coronary Heart diseases (CHDs). Methods: In this study a total of 40 subjects including 40-55 years old women were selected purposively and were divided into two experimental and c...