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Age and gender related differences in load-strain response in C57Bl/6 mice
- Source :
- Aging (Albany NY)
- Publication Year :
- 2020
- Publisher :
- Impact Journals, LLC, 2020.
-
Abstract
- We examined the changes in mechanical strain response of male and female mouse tibia and ulna, using axial compression tests, to assess age-related changes in tibiae and ulnae by a non-contact strain measurement technique called the digital image correlation (DIC) and the standard strain gage. A unique aspect of the study was to compare bones from the same animal to study variations in behavior with aging. This study was conducted using male and female C57Bl/6 mice at 6, 12 and 22 months of age (N=6-7 per age and sex) using three load levels. The DIC technique was able to detect a greater number of statistically significant differences in comparison to the strain gaging method. Male ulna showed significantly higher DIC strains compared to strains captured from strain gage at all three levels of load at 6 months and in the lowest load at 12 months. DIC measurements revealed that the ulna becomes stiffer with aging for both males and females, which resulted in 0.4 to 0.8 times reduced strains in the 22-month group compared to the 6 month group. Male tibia showed three-fold increased strains in the 22 months group at 11.5 N load compared to 6 months group (p
- Subjects :
- Male
C57BL/6
Aging
Physiology
Ulna
Age and sex
Weight-Bearing
Age and gender
Mice
Axial compression
gender
medicine
digital image correlation
Animals
Tibia
mechanical loading
Sex Characteristics
biology
Strain (chemistry)
C57Bl/6
Optical Imaging
Age Factors
Cell Biology
biology.organism_classification
Mice, Inbred C57BL
medicine.anatomical_structure
Female
Stress, Mechanical
Strain response
Research Paper
Subjects
Details
- ISSN :
- 19454589
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Aging
- Accession number :
- edsair.doi.dedup.....a017f45db6d1715d33cf6667265dfb4d