Determination of natural frequency of sciatic nerves in rats(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2021年第5期
- Page:
- 638-642
- Research Field:
- 医学生物物理
- Publishing date:
Info
- Title:
- Determination of natural frequency of sciatic nerves in rats
- Author(s):
- YIN Lu1; AN Yun1; YANG Bintang2; YANG Yikun2; LU Xingang1; YAN Juntao1
- 1. Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China 2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, China
- Keywords:
- Keywords: natural frequency sciatic nerve nerve injury mechanical vibration
- PACS:
- R35
- DOI:
- DOI:10.3969/j.issn.1005-202X.2021.05.021
- Abstract:
- Abstract: Objective To determine the natural frequency of sciatic nerves in experimental rats, and to observe the changes of natural frequency under different states, thereby providing a certain reference for the frequency selection of rehabilitation treatment instruments for the study on nerve regeneration and repair. Methods Eighteen SD rats were randomly divided into normal group, SNI 7 d group, and SNI 28 d group, with 6 rats in each group. The rats in normal group received no intervention, while those in model groups suffered from sciatic nerve clamp injuries. On the 7th day after modeling, the rats in normal group, isolated group (sciatic nerve isolation in normal group) and SNI 7 d group were subjected to a vibration frequency source on a vibration platform, and the same vibration frequency source was applied to SNI 28 d rats on the 28th day after modeling. Based on the data measured by the vibration response detection module, the natural frequency of sciatic nerves in rates was determined according to frequency characteristic curves. Results The frequency-specificity curves of sciatic nerves in normal group, isolated group, SNI 7 d group and SNI 28 d group all showed a single peak. No statistical significance was found in natural frequency among different groups (P=0.156). Pairwise comparison showed that there was no significant difference between normal group and isolated group, SNI 7 d group, SNI 28 d group, and that the difference between SNI 7 d group and SNI 28 d group was trivial (P>0.05). The overall mean natural frequency was 9.635 Hz. Conclusion The natural frequency of sciatic nerves in experimental rats is about 9.635 Hz, and the natural frequency is relatively stable and will not change greatly due to different states.
Last Update: 2021-05-31