Determination of Ultrasound Reference Values for Diagnosing Low Muscle Mass in Older Chinese Adults.

ABSTRACT:

Background

Ultrasound is a promising tool for diagnosing sarcopenia, yet standardized cut-off points and criteria are currently lacking. This study aimed to identify the optimal muscle sites and reference values for diagnosing low muscle mass in older Chinese adults using ultrasound, with dual-energy X-ray absorptiometry (DXA) as the reference standard, and to compare its diagnostic performance with bioelectrical impedance analysis (BIA).

Methods

We included 1011 participants aged over 60 years. Fat thickness (FT), muscle thickness (MT) and muscle cross-section area (CSA) at various sites, including biceps brachii, rectus abdominis, rectus femoris, vastus intermedius, vastus lateralis, vastus medialis and tibialis anterior, were assessed for participants. DXA measurements we

SUBMITTER: Li S 

PROVIDER: S-EPMC12686591 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature