Search for dissertations about: "heart rate variability"

Showing result 1 - 5 of 108 swedish dissertations containing the words heart rate variability.

  1. 1. Spectral analysis of the heart rate variability : a methodological study

    Author : Urban Niklasson; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Heart-rate variability; R-R interval; cardiac autonomic function; spectral analysis; IPFM model;

    Abstract : Heart rate and other cardiovascular variables are not steady but fluctuate over time. The evolution of computer technology the last 2 decades has made detailed analysis of the fluctuations possible and has focused the attention to the information content of the variability. READ MORE

  2. 2. Towards Heart Rate Variability Tools in P-Health : Pervasive, Preventive, Predictive and Personalized

    Author : Farhad Abtahi; Kaj Lindecrantz; Birgitta Janerot Sjöberg; Fernando Seoane; Annette Bruchfeld; Metin Akay; KTH; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heart Rate Variability; Cholinergic Anti-inflammatory Pathway; Autonomic Nervous System; Vagal activity; Biofeedback; Gamification; Serious Gaming; Inflammatory Markers; Raspberry PI; Medicinsk teknologi; Medical Technology; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Heart Rate Variability;

    Abstract : 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. READ MORE

  3. 3. Heart rate variability and pacemaker treatment in children with Fontan circulation

    Author : Jenny Alenius Dahlqvist; Annika Rydberg; Urban Wiklund; Jaana Pihkala; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Congenital heart disease; Fontan circulation; heart rate variability; pacemaker; sinus node dysfunction; pediatrik; Pediatrics; kardiologi; Cardiology;

    Abstract : 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. READ MORE

  4. 4. Women's hearts : ischaemic heart disease and stress management in women

    Author : Maria Claesson; Kjell Asplund; Gunilla Burell; Cecilia Mattsson; Annika Rosengren; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; ischaemic heart disease; women; cognitive-behavioural therapy; psychosocial risk factors; inflammation; leptin; haemostasis; fibrinolysis; insulin resistance; HRV; ischemic heart disease; cognitive behavioral therapy; heart rate variability; chd; cvd; cad; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; medicin; Medicine;

    Abstract : 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. READ MORE

  5. 5. Psycho-physiological reactions to violent video gaming : Experimental studies of heart rate variability, cortisol, sleep and emotional reactions in teenage boys

    Author : Malena Ivarsson; Lennart Högman; Frank Lindblad; Staffan Janson; Stockholms universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; video gaming; media violence; autonomic nervous system; heart rate variability; HPA axis; cortisol; sleep quality; emotional reactions; desensitization; teenagers; psykologi; Psychology;

    Abstract : Playing violent video games may provoke aggression. Psycho-physiological methods may provide knowledge about the underlying psychological processes. Most previous studies have been performed in laboratory settings at daytime with adults. READ MORE