Sökning: "heart rate variability hrv"
Visar resultat 1 - 5 av 52 avhandlingar innehållade orden heart rate variability hrv.
Sammanfattning : Acute myocardial infarction (AMI), caused by ischaemic heart disease (IHD), is a leading cause of death in both men and women in the western society. Hypertension, diabetes, and smoking are examples of well-known risk factors of IHD, but also there are psychosocial factors, such as stress, vital exhaustion (unusual fatigue, irritability, and demoralization) and depression that have been associated with an increased risk in both genders. LÄS MER
2. Towards Heart Rate Variability Tools in P-Health : Pervasive, Preventive, Predictive and Personalized
Sammanfattning : Heart rate variability (HRV) has received much attention lately. It has been shown that HRV can be used to monitor the autonomic nervous system and to detect autonomic dysfunction, especially vagal dysfunction. Reduced HRV is associated with several diseases and has also been suggested as a predictor of poor outcomes and sudden cardiac death. LÄS MER
Sammanfattning : Heart rate variability (HRV) has received much attention lately, and several techniques for the analysis of HRV using time and frequency domains and non-linear methods have been developed. It has been shown that HRV can be used to monitor the autonomic nervous system (ANS) and to detect autonomic dysfunction, especially vagal dysfunction. LÄS MER
Sammanfattning : Background: Fontan surgery is performed in children with univentricular heart defects. Arrhythmias are frequent complications, occasionally requiring pacemaker treatment. Previous data regarding indications and risk factors for pacemaker treatment in Fontan patients is limited and conflicting. LÄS MER
5. Idiopathic environmental intolerance attributed to electromagnetic fields : physiological and psychological aspects
Sammanfattning : This thesis aims to increase the knowledge on people with symptoms attributed to electromagnetic fields (EMF) by investigating the effects of EMF exposure and by additional description of the heterogeneous group of people reporting EMF-related symptoms. The effect of mobile phone (MP)-like radio frequency (RF) fields on symptoms, autonomic nervous system (ANS) parameters, short-term memory, and reaction time in persons with MP-related symptoms (MP participants) was investigated in a provocation study. LÄS MER