protodyakonov scale of hardness

用法例句

Objective To study the relationship between ultrasonic bone mineral density (BMD) of calcaneus and age, height, and body weight, and to establish the normal reference value for stiffness index (SI) of healthy subjects in Guangxi autonomous region and provide scientific foundation for the diagnosis and prevention of osteoporosis.

目的探讨广西壮族自治区健康人群跟骨超声骨密度与年龄、身高、体重等的关系,初步建立该地区健康人群跟骨超声硬度指数(SI)的正常参考值范围,为骨质疏松的诊断和预防提供科学依据。