Effects of different running speeds on the tissue-level failure strain of rat femoral cortical bone
DOI:
Author:
Affiliation:

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Purpose: this study aimed to predict the tissue-level failure strain of cortical bone, and then discussed the effects of different running speeds on the mechanical properties of the rat femoral cortical bone. Methods: three-point bending simulation was carried out on the rat femoral finite element model, and different critical failure strains of cortical bone material were assigned to perform the fracture analysis. The load–displacement curves predicted in each simulation were compared with the experimental data to back-calculate the tissue-level failure strain. Results: the tissue-level failure strains of cortical bone structures under different running speeds were statistically different from each other, which indicated that different mechanical stimuli of running had significant influences on the micromechanical properties. At a running speed of 12 m/min, the cortical bone structure expressed the greatest tissue-level failure strain, and at a running speed of 12 m/min, the cortical bone structure expressed the lowest tissue-level failure strain. Conclusions: The effects of different running speeds on the micromechanical properties of cortical bone were different. Based on the changing trends in the tissue-level failure strain, the effects of running speeds on the mechanical properties of cortical bone structures were discussed in combination with the changes in the failure load and tissue elastic modulus. Finally, the appropriate running speed for improving the mechanical properties of cortical bone was explored, which provided the theoretical basis for improving bone strength through running exercise.

    Reference
    Related
    Cited by
Get Citation
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:January 30,2023
  • Revised:February 07,2023
  • Adopted:February 16,2023
  • Online:
  • Published: