Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia.
Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Jalan Profesor Diraja Ungku Aziz, Kuala Lumpur 50603, Malaysia.
Nutrients. 2022 Feb 18;14(4):868. doi: 10.3390/nu14040868.
Sarcopenia refers to common age-related changes characterised by loss of muscle mass, strength, and physical performance that results in physical disability, poorer health status, and higher mortality in older adults. Diet quality is indicated as a potentially modifiable risk factor for sarcopenia. However, the association between diet quality and sarcopenia in developing economies appears to be conflicting. Hence, we conducted a systematic review of the literature from developing economies examining the relationship between diet quality and at least one of the three components of sarcopenia, including muscle mass, muscle strength, and physical performance, and the overall risk of sarcopenia. No restrictions on age and study design were employed. We identified 15 studies that met review inclusion criteria. There was heterogeneity among the studies in the diet quality metric used and sarcopenia-related outcomes evaluated. Longitudinal evidence and studies relating diet quality to a holistic definition of sarcopenia were lacking. Although limited and predominantly cross-sectional, the evidence consistently showed that diet quality defined by diversity and nutrient adequacy was positively associated with sarcopenia components, such as muscle mass, muscle strength, and physical performance.
肌少症是一种与年龄相关的常见变化，其特征是肌肉质量、力量和身体机能下降，导致老年人身体残疾、健康状况恶化和死亡率升高。饮食质量被认为是肌少症的一个潜在可改变的危险因素。然而，在发展中经济体中，饮食质量与肌少症之间的关系似乎存在冲突。因此，我们对来自发展中经济体的文献进行了系统综述，研究了饮食质量与肌少症的三个组成部分（包括肌肉质量、肌肉力量和身体机能）至少之一以及肌少症整体风险之间的关系。我们没有对年龄和研究设计进行限制。我们确定了符合审查纳入标准的 15 项研究。所使用的饮食质量指标和评估的肌少症相关结果在研究之间存在异质性。缺乏关于饮食质量与肌少症整体定义之间关系的纵向证据和研究。尽管证据有限且主要是横断面研究，但一致表明，通过多样性和营养充足性定义的饮食质量与肌肉质量、肌肉力量和身体机能等肌少症成分呈正相关。
