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The Journal of Exercise Nutrition & Biochemistry
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eISSN : 2233-6842

Special Article


pISSN : 2233-6834
eISSN : 2233-6842
Editor in Chief : Jonghoon Park
The Journal of Exercise Nutrition & Biochemistry - Vol. 21 , No. 2

Effects of swimming exercise on high-fat diet-induced low bone mineral density and trabecular bone microstructure in rats

Yun-Seok Kang, Sang-Hyun Kim, Jae-Cheol Kim

This study aimed to investigate the effect of swimming exercise on high-fat diet-induced low bone mineral density (BMD) and trabecular bone microstructure in rats.

Eight-week-old male Sprague? Dawley (SD) rats were divided into a normal diet group (n = 9) and a high-fat diet group (n = 15). Three rats in each group were sacrificed after 8 weeks of high-fat diet to evaluate the association between high-fat diet and bone health. The other 18 rats were reassigned to 3 groups (normal diet control, NC; high-fat diet control, HC; high-fat diet + Exercise, HEx) for up to another 8 weeks. Rats in the exercise group were trained for a swimming exercise program (1 h/day, 5 times/ week for 8 weeks). All rats were sacrificed 24 h after the last bout of exercise to analyze the BMD and trabecular bone microstructure in the femur and tibia, using micro-computed tomography.

These results indicate that high-fat diets negatively affect bone health; however, these negative effects can be improved by exercises such as swimming.



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