摘要
骨骼肌是组织-器官层次上最大的身体组分,也是一切体力活动的物质基础。现在已有若干基于性质或基于组分的方法,能够在活体测定身体的骨骼肌含量。计算机体层摄影(CT)与磁共振(MRI)这两种技术可以作为校验新方法的标准。最新发展的基于双能量X-射线吸收技术(DXA)的方法,可以替代CT及MRI,准确地测定活体的全身骨骼肌含量。
Skeletal muscle （SM） is the largest component at the tissue-organ level of human body composition and is the material basis of all physical activities. Several methods are now available to quantify total body SM mass in vivo, including property-based and component-based methods. Computerized tomography （CT） and magnetic resonance imaging （MRI） can be used as the criteria for evaluating SM mass measurement methods. The newly-developed method by using dual-energy X-ray absorptiometry （DXA） offers a reasonable alternative to CT and MRI for accurately estimating total body SM mass in vivo.
出处
《体育科研》
CSSCI
2009年第3期1-9,共9页
Sport Science Research
基金
美国国立卫生研究院研究基金(PO1-DK42618及1R21DK074877)
关键词
骨骼肌含量
活体测定
计算机体层摄影
磁共振技术
双能量X-射线吸收技术
skeletal muscle mass
in vivo measurement
computerized tomography
magnetic resonance imaging
dual-energy X-ray absorptiometry
