Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China.
Clin Neurophysiol. 2013 Jan;124(1):183-9. doi: 10.1016/j.clinph.2012.06.001. Epub 2012 Jul 12.
To establish normal ranges of F-wave measures in China as compared to published data in Brazil and Japan.
We studied F waves in 127 healthy Chinese subjects, aged 21-78 years old, stimulating the median, ulnar, tibial and peroneal nerves distally and proximaly.
The F-wave latencies had a linear correlation to the subject height in all nerves tested, showing a steeper (P < 0.05) regression line in Brazil compared to China and Japan for the tibial nerve. The Chinese population also had a higher distally elicited F-wave persistence and faster F wave conduction velocities than previously reported for both ulnar and tibial nerves. These values showed significant difference (P < 0.05) compared to Brazil but not to Japan.
F-wave latencies show a linear correlation to subject height, although the slope of regression lines varies among countries, reflecting the difference in F-wave persistence and F-wave conduction velocity.
Our study provides a rational for the use of a latency-height nomogram in clinical studies and underscores the importance of developing country specific normative data.
建立中国人 F 波正常值范围，并与巴西和日本已发表的数据进行比较。
我们研究了 127 名健康的中国受试者的 F 波，年龄 21-78 岁，刺激正中神经、尺神经、胫神经和腓总神经的远端和近端。
所有测试神经的 F 波潜伏期与受试者身高呈线性相关，与巴西相比，中国和日本的胫神经回归线斜率更陡（P<0.05）。中国人的远端诱发 F 波持续时间和 F 波传导速度也高于之前报道的尺神经和胫神经。与巴西相比，这些值有显著差异（P<0.05），但与日本相比无差异。
F 波潜伏期与受试者身高呈线性相关，尽管回归线的斜率在不同国家之间有所不同，反映了 F 波持续时间和 F 波传导速度的差异。
本研究为临床研究中使用潜伏期-身高列线图提供了依据，并强调了制定特定于国家的正常数据的重要性。
