Related Experiment Video
Updated: Oct 3, 2026

Dual-mode Imaging of Cutaneous Tissue Oxygenation and Vascular Function
Published on: December 8, 2010
A non-invasive index of leg arterial perfusion pressure during walking, derived from cutaneous toe temperature
Abstract:
This article describes and evaluates a non-invasive technique for continuous monitoring of hemodynamic changes in the legs during walking. The method involves monitoring of cutaneous toe temperature. In six normal subjects we have shown that, during exercise under carefully controlled conditions, a unique steady-state toe temperature exists for any given leg arterial perfusion pressure, when perfusion pressure is varied by means of an external occluding ankle cuff. Further, we have demonstrated a strong correlation between this external ankle cuff pressure and the time rate of changes of toe temperature during the test-period following occlusion. Correlation coefficients, r1, were between -1 and -0.88 (mean -0.95; standard deviation +/- 0.03) for big toe and between -1 and -0.87 (mean -0.94; standard deviation +/- 0.03) for third toe. We conclude that during walking the time profile of toe temperature changes is a useful index of changes in leg perfusion pressure. Therefore, toe temperature may be used to study the dynamics of leg arterial circulation in atherosclerotic occlusive diseases.
More Related Videos
14:28Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
Published on: May 10, 2024
04:44Near-Infrared Spectroscopy During Reactive Hyperemia for the Assessment of Lower Limb Vascular Function
Published on: March 22, 2024
Related Concept Videos
Pulse Assessment Sites
Sites for measuring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Assessing Blood pressure in the Leg
Preparation:
Assessment of the Cardiovascular System III: Palpation
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Peripheral Artery Disease IV: Nursing Management