Key result
Monopolar surface electromyography was more sensitive than bipolar sEMG for differentiating motoneuron excitability at different passive muscle stretching speeds because it overcame signal cancellation.
Why the study?
Does monopolar sEMG better assess motoneuron excitability upon passive muscle stretching compared to bipolar sEMG in healthy volunteers?
Does monopolar sEMG better assess motoneuron excitability upon passive muscle stretching compared to bipolar sEMG in healthy volunteers?
Monopolar sEMG is a more sensitive procedure than bipolar sEMG to differentiate motoneuron excitability at different passive muscle stretching speeds because it overcomes signal cancellation.
Monopolar sEMG may improve motoneuron excitability assessment during passive stretch in research; leaves open clinical adoption without patient validation.
Bipolar and monopolar surface electromyography (sEMG) are known procedures to measure the H-reflex. However, signal cancellation is a potential experimental problem of bipolar sEMG. The results of our study show that monopolar sEMG was the more sensitive procedure to differentiate motoneuron excitability at different passive muscle stretching speeds as it overcame signal cancellation.
No takes yet. Share an insight, caveat, or question.
Hadoush et al. (2009) studied Healthy volunteers (n=12). Monopolar surface electromyography vs. Bipolar surface electromyography was evaluated on Hmax amplitude and Hmax/Mmax ratio at different passive stretching speeds (p=<0.001). Monopolar surface electromyography was more sensitive than bipolar sEMG for differentiating motoneuron excitability at different passive muscle stretching speeds because it overcame signal cancellation.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: