巴西 Jiu-Jitsu 运动员的骨肌肉质量估计:预测方程的验证
Alex Ojeda-Aravena1, Eduardo Báez-San Marín2,3, Xurxo Dopico-Calvo4
1Departamento de Ciencias de la Actividad Física, Universidad de Los Lagos, Osorno, Chile.
Frontiers in nutrition
|August 4, 2025
概括
准确的骨肌肉质量 (SMM) 估计对于巴西 Jiu-Jitsu (BJJ) 运动员至关重要. 与金方程相比,麦卡锡和萨加亚马方程为BJJ运动员的SMM量化提供了更好的协议和更少的偏差.
科学领域:
- 体育科学 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:
- 准确的骨肌肉质量 (SMM) 估计对巴西 Jiu-Jitsu (BJJ) 运动员至关重要,影响身体质量分类和力量产生.
- 现有的SMM预测方程在BJJ运动员等特定运动群体中可能表现出不同的准确性和可靠性.
研究的目的:
- 为了比较三个预测方程 (Kim, McCarthy 和 Sagayama) 的有效性,可靠性和一致性,以估计男性BJJ运动员的总SMM.
- 在这个特定的运动群体中确定最合适的方程来准确量化SMM.
主要方法:
- 22名男性BJJ运动员接受了双能量X射线吸收计 (DXA) 进行身体组成分析.
- 使用金,麦卡锡和萨加亚马方程来估计SMM.
- 统计分析包括ANOVA,回归,相关性,ICC,CV%和Bland-Altman图表,以评估有效性,可靠性和一致性.
主要成果:
- 这三个方程都显示出可接受的有效性和可靠性,用于估计绝对的SMM (kg).
- 与麦卡锡方程相比,金方程显著高估了SMM.
- 麦卡锡和萨加亚马方程显示偏差较小,与DXA衍生的SMM更为一致,而萨加亚马具有最低的变化系数 (CV%).
结论:
- 麦卡锡和萨加亚马方程被推用于精确的SMM量化在男性BJJ运动员由于他们的偏差较低和更好的协议与DXA.
- 需要使用磁共振成像 (MRI) 进一步验证这些方程.
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