%0 Journal Article %T F-Wave Parameters of Normal Ulnar and Median Nerves %A Ghosh S %J Indian Journal of Physical Medicine and Rehabilitation %D 2010 %I Indian Association of Physical Medicine and Rehabilitation %X Twenty healthy volunteers (17 males) aged 19¨C46 years(Mean 28¡À6.8) without any history of previous numbnessand pain in the hands or any other neurological disorderwere included in this study. The normal median nerve Fwaveparameters studied were: minimum latency24.8¡À1.7 ms; maximum latency 29.8¡À2.8 ms; meanlatency 26.8¡À1.4 ms; chronodispersion 5¡À2.8 ms; FMratio 2¡À1, manual and computerized persistence mode10. Persistence varied from 4 (40%) to 10 (100%)measured both manually and by computer.The normal ulnar nerve F-wave parameters studied were:minimum latency 24.5¡À1.7 ms; maximum latency28.2¡À1.8ms; mean latency 26.2¡À1.7 ms; chronodispersion3.6¡À1.4 ms; FM ratio 3¡À5.2, persistence (mode) 10.Persistence varied from 5 (50%) to 10 (100%) measuredboth manually and by computer.In both the median and ulnar nerves, difference betweenthe right and the left F-waves parameters values wereinsignificant. There was significant difference betweenmedian and ulnar nerve F-waves maximal latency,chronodispersion and mean latency ( t=3.28; p<0.05:t=2.92; p<0.05: t=2.42; p<0.05 respectively).In conclusion, it was observed that there was increasedmedian and ulnar nerves F-wave chronodispersions andsignificant difference was found between median andulnar nerves¡¯ F-wave maximal latency, chronodispersionand mean latency in comparison to the previous studies. %K F waves normal parameters %K Ulnar nerve %K Median nerve %U http://www.ijpmr.com/ijpmr1002/100204.pdf