Sökning: "forearm blood flow"

Visar resultat 6 - 10 av 35 avhandlingar innehållade orden forearm blood flow.

1. 6. Cardiovascular dysfunction in obstructive sleep apnea

   Författare :Holger Kraiczi; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstructive sleep apnea; blood pressure; cardiac size; left ventricular function; endothelium-dependent vasodilation; forearm vascular conductance; natriuretic peptides;

   Sammanfattning : This thesis addresses relationships between the presence or severity of obstructive sleep apnea (OSA) and blood pressure (BP) as well as other signs of cardiovascular dysfunction.In a cross-sectional investigation of a sleep laboratory cohort of 81 patients, a dose response relationship was observed between the number of apneas plus hypopneas per hour of sleep (apnea-hypopnea index, AHI; measured with polysomnography) and office systolic and diastolic BP (SBP and DBP), daytime ambulatory DBP as well as nighttime ambulatory SBP and DBP (all ambulatory measurements taken at 20-minute intervals). LÄS MER

3. 7. Cardiovascular and sympatho-adrenal responses to mental stress with special reference to the regulation of human forearm blood flow

   Författare :Madeleine Lindqvist; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :adrenaline; axillary blockade; beta-receptor blockader; calcium channel blockers; cholinergic blockingagents; felodipine; hypertension-primary; noradrenaline; skeletal muscle; sodium nitroprusside; stress-psychologicai; vascular resistance;

   Sammanfattning : The cardiovascular and sympatho-adrenal responses to a standardized mental stress test (Stroop's colour word conflict test CWT) were studied in 63 healthy and 11 hypertensive men by intraarterial pressure measurements, forearm blood flow by occlusion plethysmography and noradrenaline (NA) and adrenaline (ADR) determinations in arterial and venous plasma. One study included central hemodynamics by right heart catheterization and NA turnover by an isotope dilution method, permitting studies of NA kinetics in the whole body and in a regional vascular bed (the forearm) in hypertensive patients and age-matched controls. LÄS MER

4. 8. The Hand in Manual Work - Physiological and Psychophysical studies

   Författare :Lena Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hand; pressure; muscle activity; laser doppler flowmeter; perception; manual work; hand tool; drilling machine; cutaneous blood flow; wrist orthosis;

   Sammanfattning : This thesis focuses on the hand in manual work. In particular, we have studied what happens to skin and muscles when gripping a hand tool. Different aspects of gripping that will be discussed are: pressure on the hand, effects on the skin blood flow, muscle activity and the use of wrist orthoses. LÄS MER

5. 9. Sleep disordered breathing and hemodynamic function

   Författare :Ludger Grote; Göteborgs universitet; []
   Nyckelord :sleep apnea; hypertension; blood pressure; vascular function; exercise; arousal;

   Sammanfattning : This thesis addresses the association between sleep disordered breathing (SDB) and hemodynamic function. A cross sectional study in a sleep laboratory cohort (n=1190) demonstrated a dose-response relationship between the severity of SDB, expressed as respiratory disturbance index (RDI), and office blood pressure, heart rate, and the risk of hypertension. LÄS MER

7. 10. Effects of acute metabolic interventions on hemodynamics, endothelial function and forearm glucose uptake

   Författare :Andreas Fugmann; Uppsala universitet; []
   Nyckelord :Medical sciences; Insulin; glucose; lipids; bloodflow; endothelium; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Medicine; medicin;

   Sammanfattning : Hyperinsulinemia is known to augment endothelium-dependent.vasodilation (EDV). If physiological levels of insulin lead to peripheral, vasodilation and if this vasodilation is an independent determinant of skeletal muscle glucose uptake is however under debate. LÄS MER