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Updated: Jul 17, 2026
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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
Published on: April 21, 2017
Measurements of heart motion using accelerometers
L Hoff1, O J Elle, M J Grimnes
1Vestfold University College, Horten, Norway.
Summary
Acceleration sensors effectively monitor surgical heart motion, detecting arrhythmias and fibrillation. This technology offers a new method for assessing heart circulation failure.
Area of Science:
- Biomedical Engineering
- Cardiovascular Monitoring
- Surgical Instrumentation
Background:
- Accurate monitoring of heart motion during surgery is crucial for patient safety.
- Existing methods may have limitations in capturing detailed cardiac dynamics.
- Respiration significantly influences measured heart motion, necessitating signal differentiation.
Purpose of the Study:
- To evaluate the efficacy of acceleration sensors for monitoring heart motion during surgical procedures.
- To differentiate heart beating motion from respiratory influences.
- To assess the potential of this technique in identifying indicators of heart circulation failure.
Main Methods:
- Development of a three-axis accelerometer using commercially available two-axis sensors.
- Measurement of heart motion in anesthetized pigs.
- High-pass filtering at 1.0 Hz to isolate heart beating from respiration, followed by numerical integration to calculate velocity and position.
Main Results:
- Acceleration sensor data accurately reproduced detailed heart motion with minimal noise.
- Cardiac events such as arrhythmias and fibrillation were clearly identifiable in the acceleration traces.
- Correlation with simultaneously recorded electrocardiogram (ECG) data confirmed the findings.
Conclusions:
- Acceleration sensors provide high-resolution measurements of heart motion.
- The technique can successfully distinguish cardiac beating from respiratory artifacts.
- Detected motion patterns show promise for indicating potential heart circulation failure.
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