Hida Tetsuro, Harada Atsushi
Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Japan.
Clin Calcium. 2013 May;23(5):707-12.
Diagnosis of sarcopenia is based on the combination of physical-performance assessment and muscle-mass measurement. Physical performance was estimated by gait speed and grip strength. Common measuring procedures for skeletal muscle mass were dual energy X-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA) . Skeletal muscle mass index (SMI) was calculated from following formula ; [SMI (kg/m(2)) = (arm lean mass + leg lean mass) /height(2)] . Sarcopenia and sarcopenic leg are associated with poor body balance, falls, and subsequent fracture. Treatment of sarcopenia may result in successful prevention of fall and fracture for frail elderly.
肌肉减少症的诊断基于身体机能评估和肌肉量测量的结合。身体机能通过步速和握力进行评估。骨骼肌量的常用测量方法是双能X线吸收法（DXA）和生物电阻抗分析（BIA）。骨骼肌量指数（SMI）通过以下公式计算：[SMI（kg/m²）=（手臂瘦体重+腿部瘦体重）/身高²]。肌肉减少症和少肌性腿与身体平衡差、跌倒及随后的骨折相关。治疗肌肉减少症可能成功预防体弱老年人跌倒和骨折。
