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Updated: May 12, 2026

Measuring the Strength of Mice

Measuring the Strength of Mice

Published on: June 2, 2013

A New Instrument to Measure Individual Finger Strength in Palmar Grip.

Rafael Felipe Fernandes Dos Santos, Ketlin Mikaela Medeiros Santos, Guilherme Nunes Nogueira Neto

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|March 5, 2025

Summary

This study introduces a novel virtual instrumentation for precise palm grip strength measurement, enabling individual finger force assessment. The device offers accurate hand strength data for evaluating motor function.

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Area of Science:

Biomedical Engineering
Rehabilitation Technology
Human Motor Control

Background:

Accurate functional assessment of upper limbs is crucial for evaluating motor condition.
Existing dynamometers often lack the sensitivity to measure individual finger force contributions during palm grip.

Purpose of the Study:

To develop and validate a novel virtual instrumentation system for measuring palm grip strength.
To enable precise measurement of individual finger strength during a palm grip action.

Main Methods:

Designed a virtual instrumentation system with 'ring' shaped parts for optimal finger interaction.
Developed a wireless mobile application (Android, Flutter) with Bluetooth connectivity for data acquisition.
Calibrated the instrument sensors and conducted an experimental protocol to assess hand strength differences.

Main Results:

Instrument calibration showed low error rates for all sensors (ranging from 1.646% to 3.804%).
Experimental results indicated a strength difference of 7.5% (four fingers) and 7.1% (five fingers) between dominant and contralateral hands.
The system demonstrated effectiveness in accurately assessing hand strength.

Conclusions:

The novel dynamometer and its mobile application provide a valuable tool for accurate hand strength assessment.
The system offers relevant data for understanding hand motor capabilities and functional assessment.
This technology enhances the evaluation of upper limb motor function.