The aim of the present study was to verify the effects of muscular strength training and growth hormone (GH) supplementation on femoral bone tissue by Raman spectroscopy (Raman), dual-energy X-ray absorptiometry (DXA), and mechanical resistance (F-max) analysis. A total of 40 male Wistar animals, 60 days old, were used. The animals were distributed into four groups: control (C), control with GH (GHC), muscular strength training (T), and muscular strength training with GH (GHT). Blood samples were collected for the quantification of creatine kinase (CK-MB) and the femurs were removed for analysis by Raman, DXA, and F-max. A more pronounced increase in the bone mineral components was verified in the T group, for all the variables obtained by the Raman (calcium, phosphate, amide, and collagen). In addition, for animals submitted to GH supplementation, there was a reduction in the variable bone mineral density (BMD) obtained by the DXA (p < 0.05). Finally, the animals that received GH supplementation presented a higher F-max, but without statistical significance (p > 0.05). It was concluded that animals that received GH supplementation demonstrated a decrease in BMD. In addition, T alone was able to promote increased calcium, phosphate, amide, and collagen compounds in bone tissue.
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The authors are grateful to the Brazilian Agency of Resources for Higher Education Personnel (CAPES) for supporting the development of this study.
This study was funded by Brazilian Agency of Resources for Higher Education Personnel (CAPES).
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The authors declare that they have no conflict of interest.
All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted. All procedures were approved by the ethics committee for animal use from University of Western São Paulo - UNOESTE (SP, Brazil; protocol no. 2626). This article does not contain any studies with human participants performed by any of the authors.
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Castoldi, R.C., Ozaki, G.A.T., Garcia, T.A. et al. Effects of muscular strength training and growth hormone (GH) supplementation on femoral bone tissue: analysis by Raman spectroscopy, dual-energy X-ray absorptiometry, and mechanical resistance. Lasers Med Sci 35, 345–354 (2020). https://doi.org/10.1007/s10103-019-02821-5
- Physical training
- Growth hormone
- Bone tissue
- Muscular strength