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
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Data
2019-01-01
Autores
Castoldi, Robson Chacon [UNESP]
Ozaki, Guilherme Akio Tamura
Garcia, Thiago Alves
Giometti, Ines Cristina
Koike, Tatiana Emy [UNESP]
Camargo, Regina Celi Trindade [UNESP]
dos Santos Pereira, João Domingos Augusto [UNESP]
Constantino, Carlos José Leopoldo [UNESP]
Louzada, Mário Jefferson Quirino [UNESP]
Camargo Filho, José Carlos Silva [UNESP]
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Resumo
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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Anabolics, Bone tissue, Growth hormone, Muscular strength, Physical training
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Lasers in Medical Science.