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若きアスリートにおける全身脂肪と骨のミネラル含有量との関連:横断的研究
Juliane Correa Dos Santos1, Jean Carlos Parmegiani De Marco1, Tiago Rodrigues de Lima1
1Centro de Ciências da Saúde e do Esporte (CEFID), Universidade do Estado de Santa Catarina (UDESC), Florianópolis 88080-350, SC, Brazil.
Healthcare (Basel, Switzerland)
|February 13, 2026
まとめ
若いアスリートの多量体脂肪は,腰椎の骨のミネラル含有量が低いと関連しています. これは,骨の健康の具体的なモニタリングが,活発な子供や青少年にとって極めて重要であることを示唆しています.
科学分野:
- 小児スポーツ医学 小児スポーツ医学
- 骨の健康 骨の健康とは
- 肥満に関する研究
背景:
- 成長中の過剰な体脂肪は,骨の発達に悪影響を及ぼします.
- 活動的な若者の全身脂肪と地域脂肪が骨のミネラル含有量 (BMC) にどのように影響するかに関する研究は限られている.
研究 の 目的:
- 子供および青少年アスリートにおける総体脂肪と地域体脂肪とBMCの関連性を調査する.
- 体の脂肪の分布が,異なる骨格部位における骨のミネラル含有量に影響するかどうかを判断する.
主な方法:
- 109人のスポーツ選手 (年齢9〜18歳) を対象に,様々なスポーツを対象とした横断的な研究.
- 骨のミネラル含有量 (BMC) を身長 (BMC/身長) によって正常化 (DXAを用いて頭部,腰椎,股関節首を除いた全身で測定) した.
- 総体脂肪,アンドロイド体脂肪,ギノイド体脂肪の割合はDXAで評価され,多変量線形回帰を用いて分析された.
主要な成果:
- 総体脂肪,アンドロイド脂肪,および腰椎骨の脂肪と腰椎骨のBMC/身長との間に有意な逆関連が見られた.
- 身体脂肪率と全身マイナス頭部または股関節頸部でのBMC/身長との間に有意な関連性は観察されなかった.
結論:
- 肥満は,若いアスリートの腰椎骨のミネラル含有量と逆に関連しています.
- これらの発見は,体脂肪が骨の健康に及ぼすサイト特有の影響を強調し,活発な若者の標的型モニタリングの必要性を強調しています.
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