Fatigue loading of bone, from the activities of daily living in the elderly, or from prolonged exercise in the young, can lead to increased risk of fracture. Elderly patients with osteoporosis are particularly prone to fragility fractures of the vertebrae, where load is carried primarily by trabecular bone. In this study, specimens of bovine trabecular bone were loaded in compressive fatigue at four different normalized stresses to one of six maximum strains. The resulting change in modulus and residual strain accumulation were measured over the life of the fatigue test. The number of cycles to reach a given maximum compressive strain increased with decreasing normalized stress. Modulus reduction and specimen residual strain increased with increasing maximum compressive strain, but few differences were observed between specimens loaded to the same maximum strain at different normalized stresses.
Fatigue of Bovine Trabecular Bone
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division, April 15, 2002; revision received July 2, 2003. Associate Editor: C. R. Jacobs.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Moore, T. L. A., and Gibson, L. J. (January 9, 2004). "Fatigue of Bovine Trabecular Bone ." ASME. J Biomech Eng. December 2003; 125(6): 761–768. https://doi.org/10.1115/1.1631583
Download citation file:
- Ris (Zotero)
- Reference Manager