体型类型影响瘦体质量估计与生物电阻分析在年轻运动员
Katinka Utczás1, Zsófia Tróznai1, Gergely Pálinkás1
1Research Center for Sport Physiology, Hungarian University of Sports Science, Budapest, Hungary.
Annals of human biology
|September 30, 2025
概括
身体体型显著影响生物电阻分析 (BIA) 准确度,用于瘦体质量 (LBM) 和体脂估计. 相比DXA. mesomorphy减少了偏差,而ectomorphy和endomorphy相比DXA.增加了偏差.
科学领域:
- 运动科学 运动科学 运动科学
- 人体生理学 人体生理学
- 身体组成分析 身体成分分析
背景情况:
- 生物电阻分析 (BIA) 对身体组成的准确性可能会受到除水化之外的人类特征的影响.
- 了解这些因素对于精确的身体成分评估至关重要.
研究的目的:
- 用BIA研究体型对身体组成估计的影响,特别关注瘦体质量 (LBM).
主要方法:
- 539名男性和121名女性年轻运动员通过BIA和双能X射线吸收计 (DXA) 进行了身体成分评估.
- 用Heath-Carter方法确定体型,将个体分为内观形态,中观形态和外观形态.
- 统计分析包括单向和反复测量ANOVA来比较跨组差异.
主要成果:
- 与DXA相比,BIA通常低估了体脂百分比 (PBF) 7.6%,高估了LBM 3.9 公斤.
- 半模拟显示了LBM和PBF估计的最小偏差.
- 乙形态导致最大的PBF低估,而内形态显示最大的LBM高估.
结论:
- 体型显著影响来自BIA的LBM估计.
- 在比较BIA与DXA时,中形形态似乎将估计偏差降到最低,而外形形态和内形形态则加剧了偏差.
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