Reference values for F wave parameters in healthy 3-20 year old subjects

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
Leena PuksaB Falck

Abstract

To create a reference value database for F wave parameters from healthy subjects aged 3-20 yr. We studied the following parameters: minimum F wave latency minus distal motor latency (FMINLAT), number of F waves/20 stimuli (FNUMBER) and F wave dispersion (FDISP). The median, ulnar, peroneal and tibial nerves were studied. All four nerves were not analyzed in all subjects, the number of subjects varied from 78 to 118 in each nerve. Age explained 71-87% of the variability of FLATMIN while height explained 80-95% of the variability. The FMINLAT increases by 0.12 ms/cm of height in the upper limb nerves and by 0.28 ms/cm in the lower limb nerves. Gender did not influence the FMINLAT. FDISP was not related with age, height or gender. FNUMBER was not related with age or height, it was somewhat larger in males than females but the difference was not significant in all nerves. The best model for FMINLAT was a linear regression model with height as an independent variable. FDISP and FNUMBER are not related to age, height or gender between the ages of 3 and 20 yr. We have constructed clinically useful reference values for F wave parameters in healthy subjects aged 3-20 yr for the main motor nerves commonly studied.

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Citations

Nov 22, 2011·Revue neurologique·F C WangO Bouquiaux
Nov 15, 2019·Muscle & Nerve·Peter B KangUNKNOWN Professional Practice Committee of the American Association of Neuromuscular & Electrodiagnostic Medicine
Aug 29, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Pin Fee ChongUNKNOWN Acute Flaccid Myelitis Collaborative Study Investigators

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