Comparison of bone mineral density between female amateur triathletes and nonathletes: A cross-sectional study

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Soares, Guilherme Cruz Correa Netto ; Barbosa Junior, Jose Geraldo Gomes ; Seffrin, Aldo ; Vivan, Lavinia ; de Freitas, Joao Victor Rosa ; Costa, Gustavo De Conti Teixeita ; de Lira, Claudio Andre Barbosa B. ; Vancini, Rodrigo Luiz ; Weiss, Katja ; Knechtle, Beat ; Andrade, Marilia Santos

• Tipo de documento: Artigo Científico
• Fonte: SCIENCE PROGRESS; v. 107, n. 3, p. 10-pg., 2024-07-01.

Resumo

Purpose: Physical inactivity is considered an important risk factor for osteoporosis, however, some athletes performing extremely high training volumes can also develop bone mass loss. Moreover, the effect of total body mass or body surface area on bone mineral density remains controversial. Therefore, the aim of this study was to compare the absolute bone mineral density and bone mineral density adjusted to body surface area between amateur triathletes and nonactive women. Methods: Forty-two healthy women (23 amateur triathletes and 19 nonactive individuals) were evaluated for body composition using a dual-energy X-ray absorptiometry system. Results: Compared to nonactive women, amateur triathletes exhibited lower body mass index (p < 0.001), lower bone mineral density (p < 0.001), and body surface area (p < 0.001). However, bone mineral density adjusted by body surface area in the triathletes was higher than in the nonactive women (p = 0.03). Conclusion: These findings showed that amateur triathles presented lower absolute bone mineral density, but higher bone mineral density adjusted to body surface area. Future studies are recommended to identify if the higher bone mineral density adjusted to body surface area are associated with a lower bone fragility. (AU)

• Processo FAPESP: 21/08114-1 - Características fisiológicas da triatleta amadora de distância olímpica e as associações com o desempenho
• Beneficiário: Marilia dos Santos Andrade
• Modalidade de apoio: Auxílio à Pesquisa - Regular