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A force meter to assess lower limb motor function after epidural analgesia
A H Ilsley1, P Brownridge, J L Plummer
1Department of Anesthesia and Intensive Care, Flinders Medical Centre, Bedford Park, South Australia.
Regional Anesthesia
|November 1, 1993
Summary
A new force meter accurately measures lower limb muscle strength during labor epidural analgesia. This device offers a quantitative alternative to subjective assessments, improving motor function evaluation.
Area of Science:
- Biomedical Engineering
- Anesthesiology
- Neuromuscular Function
Background:
- Assessing lower limb motor function during labor epidural analgesia is challenging.
- Existing methods like the Bromage scale lack sensitivity or are impractical.
Purpose of the Study:
- To develop and validate a novel force meter for quantitative assessment of lower limb isometric muscle power.
- To provide a precise tool for evaluating motor function during labor analgesia.
Main Methods:
- The force meter's linearity was tested using calibrated weights.
- Repeated measurements over approximately five years assessed device consistency.
- Regression analysis and lack of fit tests evaluated performance.
Main Results:
- The force meter demonstrated no significant nonlinearity within the 0-15 kg range.
- No significant differences in slope were found between functional modes.
- Slight overreading occurred at higher weight measurements.
Conclusions:
- The developed force meter is accurate and suitable for quantitative motor function assessment.
- It provides a reliable method for evaluating lower limb function post-epidural analgesia during labor.