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人体成分分析是将机体分为脂肪组织和去脂组织，其结果包括肌肉、脂肪、无机盐、蛋白质等在人体中的分布情况。人体成分分析不仅用于描述机体各组分的构成比例，还能反映机体生长发育、衰老以及疾病过程中的动态变化和对机体功能造成的重大影响，这对个人和群体的健康具有重要意义。应用人体成分分析不但可以更直接地了解人体的能量代谢，评估全面营养，而且能为多种疾病的诊疗提供更有价值的数据。“,”Body composition analysis divides the body into fat mass and fat-free mass, and the results include the distribution of muscle,fat,mineral,protein and other elements in individual bodies.Body compo-sition analysis not only provides the distribution of all elements in the body,but also indicates the dynamic change by the influence of growth,aging and disease,which may produce significant impact on body health, and is of great significance for health of both individuals and populations .Application of human body compo-sition analysis not only can realize more direct understanding of the human body energy metabolism ,assess-ment of comprehensive nutrition,but also can provide more valuable data for the diagnosis and treatment of a variety of diseases.