营养不良是一种亚急性或慢性的营养状态，可导致身体成分变化和功能减弱，影响治疗和临床结局。及时、准确识 别营养不良或有营养风险的患者对改善营养状况和提高预后至关重要。然而，营养不良缺乏明确统一的定义和诊断标准， 2015年欧洲肠外与肠内营养学会发布的营养不良诊断标准共识没有获得广泛认可。2018年，营养不良全球领导倡议（GLIM） 共识旨在统一成人住院患者营养不良诊断标准。肌肉质量降低是GLIM表型标准之一，由于GLIM共识尚未提出统一的肌肉 质量评估方法，这使得研究间肌肉质量评估方法存在差异。选择有效的评估指标及工具，可以及时、准确评估肌肉状态，为营 养状况评估提供参考。本文综述了GLIM标准相关研究中肌肉质量的评估方法、评估工具，旨在了解目前临床实践中应用 GLIM标准进行营养评估的相关研究开展的整体概括，具体涉及的指标及相关阈值，为临床实践中准确有效评估肌肉质量降 低，完善GLIM标准在临床实践中的应用提供借鉴和参考。

Malnutrition is a subacute or chronic nutritional state, which can lead to changes in body composition and impaired functions, has an effect on treatment and clinical outcomes. Early and accurate identification of patients who are malnourished or at nutritional risk is essential to improve nutritional status and prognosis. However, there is a lack of clear and uniform definitions and diagnostic criteria for malnutrition, and the consensus on diagnostic criteria for malnutrition issued by the European Society for Parenteral and Enteral Nutrition in 2015 has not been widely recognized. In 2018, the Global Leadership Initiative on Malnutrition (GLIM) consensus aims to unify the diagnostic criteria for malnutrition in adult hospitalized patients. Since the GLIM consensus has not yet proposed a unified method for muscle mass, which leads to different methods used to assess muscle mass between studies. The selection of effective assessment indicators and tools can accurately and timely assess the muscle mass, and provide a reference for nutritional status assessment. The paper reviews the assessment indicators and tools for muscle mass in the researches related to the GLIM criteria, aiming to get general overview of relevant researches on nutritional assessment using GLIM criteria in clinical practice, the indicators involved and related thresholds, provide reference for accurate and effective assessment of muscle mass in clinical practice and perfecting the application of GLIM criteria.