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Intersession reliability of thoracolumbar multisegmental motor responses
Selda Uzun1, Fikriye Ovak Bittar2, Mohamed A Sabbahi3
1School of Physical Education and Sport Science, Marmara University, Istanbul, Turkey; and Texas Electrophysiology Services, Houston, TX, USA.
The Journal of Spinal Cord Medicine
|October 5, 2013
Summary
Multisegmental motor responses (MMR) show high test-retest reliability in healthy individuals. This indicates MMR is a dependable measure for tracking neurological changes over time.
Area of Science:
- Neuroscience
- Motor Control
- Biomedical Engineering
Background:
- Multisegmental motor responses (MMR) are crucial for understanding neural pathways controlling movement.
- Previous research has not established the test-retest reliability of MMR, limiting its clinical application.
- Reliable measurement of MMR is essential for monitoring neurological conditions.
Purpose of the Study:
- To determine the test-retest reliability of thoracolumbar multisegmental motor responses (MMR) in the upper and lower limbs of healthy subjects.
- To establish the consistency of MMR measurements across different testing sessions.
- To provide a foundation for using MMR in serial assessments of neurological disorders.
Main Methods:
- Fifteen healthy subjects participated in two testing sessions.
- Electrical stimulation was applied to T11-12 vertebral segments.
- MMR signals were recorded from upper and lower extremity muscles, with peak-to-peak amplitude and latency as dependent variables.
- Interclass correlation coefficient (ICC) was used to assess reliability between sessions and between limbs.
Main Results:
- MMR signals were comparable between the right and left upper and lower extremities.
- High correlation (ICC = 0.58-0.99) was observed for MMR signals between testing sessions.
- No statistically significant differences were found in MMR measurements between the two sessions for the same subject.
Conclusions:
- MMR exhibits high test-retest reliability in healthy individuals.
- These findings support the utility of MMR for serial testing in patients with neurological disorders.
- MMR can be a valuable tool for monitoring conditions like spinal cord injuries and diseases.
