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The effect of different low‐frequency filters on concentric needle jitter in stimulated orbicularis oculi
Author(s) -
Patel Anjla,
Gosk Magdalena,
Pitt Matthew
Publication year - 2016
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.25178
Subject(s) - orbicularis oculi muscle , concentric , jitter , medicine , anatomy , ophthalmology , computer science , eyelid , mathematics , geometry , telecommunications
Our objective was to compare the effect of different low‐frequency filters on jitter parameters when stimulating the orbicularis oculi. Methods: Ten healthy volunteers were studied. Jitter was expressed as the mean consecutive difference (MCD). The low filter settings compared were 1, 2, and 3 kH z . Results: No significant difference in mean MCD or outliers was found with the different filter settings. No significant difference in mean MCD was seen when the number of potentials analyzed was reduced. Conclusion: Different low‐frequency settings do not influence the mean MCD when using a peak detection system. Muscle Nerve 54 : 317–319, 2016