Pandit Alak, Pattnaik Srimant, Biswas Samar, Naik Bijaya N
Department of Neurology, Bangur Institute of Neurosciences, IPGME & R, Kolkata, West Bengal, India.
Department of Neurology, IMS&SUM Hospital, Bhubaneswar, Odisha, India.
Neurol India. 2025 May 1;73(3):469-473. doi: 10.4103/ni.ni_491_21. Epub 2025 May 23.
F-wave normative values may be country- or geographic locality-specific, as shown in various studies. Hence, using the same cut-off value in all laboratories leads to errors. This study attempts to determine the normative value of the F-wave in eastern India.
This study aims to find normative data on F-wave minimum latency in a healthy population in Eastern India and to check the correlation of F-wave minimum latency with height, age, and sex.
Healthy volunteers aged 18-45 participated in the nerve conduction study to determine F-wave minimum latency in the bilateral median, ulnar, and tibial nerves. The height of the volunteers was recorded. This is a descriptive cross-sectional study.
A total of 150 healthy volunteers participated (70 females, 80 males). The mean age of the study population was 30.7 ± 8.4 years. The mean height of the participants was 160.5 ± 9.0 cm. The mean values of F-wave minimum latencies are as follows: 24.85 ± 1.87 msec for the median nerve, 25.1 ± 2.01 msec for the ulnar nerve, and 45.56 ± 3.74 msec for the tibial nerve. The most significant effect on latency was by height.
The cut-off value for F-wave minimal latency may be kept as follows: right median nerve: 28.57 msec, left median nerve: 28.58 msec, left ulnar nerve: 29.24 msec, right ulnar nerve: 29.01 msec, left tibial nerve: 53.21 msec, and right tibial nerve: 52.85 msec.
如各项研究所示，F波的正常参考值可能因国家或地理位置而异。因此，在所有实验室使用相同的临界值会导致误差。本研究旨在确定印度东部F波的正常参考值。
本研究旨在获取印度东部健康人群F波最小潜伏期的正常参考数据，并检验F波最小潜伏期与身高、年龄和性别的相关性。
18至45岁的健康志愿者参与神经传导研究，以确定双侧正中神经、尺神经和胫神经的F波最小潜伏期。记录志愿者的身高。这是一项描述性横断面研究。
共有150名健康志愿者参与（70名女性，80名男性）。研究人群的平均年龄为30.7±8.4岁。参与者的平均身高为160.5±9.0厘米。F波最小潜伏期的平均值如下：正中神经为24.85±1.87毫秒，尺神经为25.1±2.01毫秒，胫神经为45.56±3.74毫秒。对潜伏期影响最显著的是身高。
F波最小潜伏期的临界值可设定如下：右侧正中神经：28.57毫秒，左侧正中神经：28.58毫秒，左侧尺神经：29.24毫秒，右侧尺神经：29.01毫秒，左侧胫神经：53.21毫秒，右侧胫神经：52.85毫秒。
