A comparison between different parameters in F-wave studies

Ulnar nerve F-waves were studied in 23 healthy volunteers and 27 diabetic p atients. Latencies and chronodispersion were analyzed in each group. In the diabetic group all the parameters were normal in 14 patients (52%) and in 13 (48%) at least one parameter was altered. in these patients the most fre quently altered parameter was the maximum latency (92%), followed by mean l atency (85%), minimum latency (54%) and chronodispersion (54%). These findi ngs suggest that maximum and mean latencies are better parameters to be ana lyzed in ulnar F-wave studies than minimum latency. (C) 2001 Elsevier Scien ce Ireland Ltd. All rights reserved.