scholarly journals Venous occlusion plethysmography vs. Doppler ultrasound in the assessment of leg blood flow kinetics during different intensities of calf exercise

2017 ◽  
Vol 118 (2) ◽  
pp. 249-260 ◽  
Author(s):  
Elaine Murphy ◽  
Joel Rocha ◽  
Norita Gildea ◽  
Simon Green ◽  
Mikel Egaña
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Venous Occlusion ◽  
Venous Occlusion Plethysmography ◽  
Leg Blood Flow ◽  
Calf Exercise

scholarly journals Leg blood flow measurements using venous occlusion plethysmography during head-up tilt

2007 ◽  
Vol 17 (2) ◽  
pp. 106-111 ◽  
Author(s):  
Miriam Kooijman ◽  
Fleur Poelkens ◽  
Gerard A. Rongen ◽  
Paul Smits ◽  
Maria T.E. Hopman
Keyword(s):  
Blood Flow ◽  
Venous Occlusion ◽  
Venous Occlusion Plethysmography ◽  
Flow Measurements ◽  
Leg Blood Flow ◽  
Head Up Tilt ◽  
Blood Flow Measurements

THE EFFECT OF LOCAL TEMPERATURE ON INDIRECT VASODILATATION IN THE FEET

1967 ◽  
Vol 45 (1) ◽  
pp. 63-73 ◽  
Author(s):  
Peter Gaskell ◽  
Garth M. Bray
Keyword(s):  
Blood Flow ◽  
Venous Occlusion ◽  
Venous Occlusion Plethysmography ◽  
Local Temperature ◽  
Cool Water ◽  
Arterial Blood

Lewis and Pickering reported in 1933 that warming occurred later in cool than in warm fingers in response to body heating. Factors which may be responsible were investigated. Measurement of rate of blood flow in the feet by venous occlusion plethysmography during body heating showed that vasodilatation in the feet occurred at the same time in a cool foot (18 to 23 °C) as in a warm (30 to 35 °C) but that warming of the cooler foot might be delayed for some time until the increase in flow was 0.5 ml/100 ml of foot per minute or more. In control experiments, with both feet in cool water or both in warm, the increase in blood flow during body heating started at the same time in both feet. Warming also began at the same time in both feet, but in the cool control experiments, warming often began later than did increase in flow. It is suggested that precooling of arterial blood may account for the delay in warming when the extremity is initially cool and the increase in blood flow is at first small during indirect vasodilatation.

A restrospective perspective

2005 ◽  
Vol 98 (2) ◽  
pp. 762-763 ◽  
Author(s):  
John Gamble
Keyword(s):  
Blood Flow ◽  
Adrenergic Receptors ◽  
Reactive Hyperemia ◽  
Venous Occlusion ◽  
Venous Occlusion Plethysmography ◽  
Limb Blood Flow ◽  
Major Area ◽  
Vasoactive Factors ◽  
Health And Disease

Venous occlusion plethysmography is a simple but elegant technique that has contributed to almost every major area of vascular biology in humans. The general principles of plethysmography were appreciated by the late 1800s, and the application of these principles to measure limb blood flow occurred in the early 1900s. Plethysmography has been instrumental in studying the role of the autonomic nervous system in regulating limb blood flow in humans and important in studying the vasodilator responses to exercise, reactive hyperemia, body heating, and mental stress. It has also been the technique of choice to study how human blood vessels respond to a variety of exogenously administered vasodilators and vasoconstrictors, especially those that act on various autonomic and adrenergic receptors. In recent years, plethysmography has been exploited to study the role of the vascular endothelium in health and disease. Venous occlusion plethysmography is likely to continue to play an important role as investigators seek to understand the physiological significance of newly identified vasoactive factors and how genetic polymorphisms affect the cardiovascular system in humans.

Effect of rhythmically inflating a pneumatic cuff at the ankle on blood flow in the foot

1959 ◽  
Vol 14 (3) ◽  
pp. 411-413 ◽  
Author(s):  
R. Andrew Loane
Keyword(s):  
Blood Flow ◽  
Heat Flow ◽  
Perfusion Pressure ◽  
Venous Pressure ◽  
Venous Occlusion ◽  
Quantitative Agreement ◽  
Venous Occlusion Plethysmography ◽  
Flow Through ◽  
And Calorimetry

Rhythmic inflation to 110 mm Hg of a pneumatic cuff around the ankle of a seated subject reduces the venous pressure in the foot and is found by three methods, venous occlusion plethysmography, heat flow and calorimetry, to increase the rate of blood flow through the foot. The increases measured by the three methods are not, however, in quantitative agreement and it is not possible to decide how large the increase may be. It is considered, however, that the increase in flow is probably of the same order as the increase in perfusion pressure and not greatly in excess of this increase. Submitted on August 5, 1958

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