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Equipments Used To Measure Blood Pressure

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...

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Fluid Pressure

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Measurement of Blood Pressure

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Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.

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Related Experiment Video

Updated: Jul 8, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Insole Pressure Sensors to Assess Post-Stroke Gait.

Hyung Seok Nam^1,2,3, Caitlin Clancy⁴, Matthew Smuck³

¹Department of Rehabilitation Medicine, Sheikh Khalifa Specialty Hospital, Ras al Khaimah, United Arab Emirates.

Annals of Rehabilitation Medicine

|January 10, 2024

Summary

This summary is machine-generated.

Simplified insoles with pressure sensors accurately measure gait in stroke survivors without altering speed. Stance time of the non-hemiparetic leg strongly correlates with clinical assessments, offering a potential home-based therapy tool.

Keywords:

Gait analysis Insole pressure sensor Outcome measure Stroke

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Last Updated: Jul 8, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Evaluation of Patients' Posture and Gait Profile After Lumbar Fusion Surgery by Video Rasterstereography and Treadmill Gait Analysis

Published on: March 23, 2019

Home-Based Monitor for Gait and Activity Analysis

Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

Area of Science:

Biomedical Engineering
Rehabilitation Science
Clinical Biomechanics

Background:

Gait impairment is a common challenge for stroke survivors, impacting mobility and quality of life.
Objective, sensor-based gait analysis offers potential for more precise and frequent assessment compared to traditional clinical scales.
Developing non-obtrusive, user-friendly gait monitoring tools is crucial for effective rehabilitation.

Purpose of the Study:

To validate a simplified insole pressure sensor system for gait analysis in hemiplegic stroke patients.
To confirm that the sensor insoles do not negatively impact gait speed.
To identify specific sensor-based gait parameters that strongly correlate with established clinical measures of gait function.

Main Methods:

Ten participants with hemiplegic stroke underwent the 10-Meter Walk Test wearing shoes equipped with insole pressure sensors.
Sensor data, including stance time and heel-to-toe peak time, were collected and analyzed.
Sensor-derived parameters were correlated with gait speed and the lower extremity Fugl-Meyer (F-M) score.

Main Results:

Gait speed remained unaffected by the insole sensors, showing high correlation (ρ=0.988) and agreement (ICC=0.924).
Stance time and heel-on-to-toe peak time of the non-hemiplegic leg demonstrated strong negative correlations with both F-M scores and gait speed (β coefficients ranging from -0.86 to -0.95).
These sensor parameters showed significant predictive power for clinical gait assessment outcomes.

Conclusions:

Non-obtrusive insole pressure sensors can reliably assess gait in stroke survivors without altering their gait.
Stance time of the non-hemiparetic leg is a key parameter that strongly correlates with clinical gait assessments.
This technology holds promise as a practical, home-use clinical endpoint for post-stroke gait therapy trials.