Research Center in Kinanthropometry and Human Performance, Sports Center, Federal University of Santa Catarina, Florianópolis, SC, 88040900, Brazil.
Exercise and Health Laboratory, CIPER, Faculdade Motricidade Humana, Universidade Lisboa, Estrada da Costa, 1499-002 Cruz-Quebrada, Portugal.
Clin Nutr ESPEN. 2023 Aug;56:237-250. doi: 10.1016/j.clnesp.2023.05.015. Epub 2023 Jun 1.
The aim of the study was to map evidence on the association between phase angle (PhA) and body composition in populations healthy and clinical populations). A systematic search for information regarding the topic was conducted in nine electronic databases (CINAHL, LILACS, PubMed, SciELO, Scopus, SPORTDiscus, Science Direct, MEDLINE and Web of Science) between October and November 2021. Studies with different designs, which allowed extracting information about the relationship between PhA and body composition (body cell mass [BCM], muscle tissue, bone mineral content, lean mass, total fat mass, visceral fat, and lean soft tissue mass [LSTM]) were included. Of the total of 11,913 initially identified studies, 59 were included after reading titles, abstracts, full texts and references. Most studies (40.67%; n = 24) presented data from Brazilian samples. With regard to the design of studies, 15 (25.42%) had longitudinal design. The age group of studies was wide, with studies involved 3-year-old children and 88-year-old adults. Body fat mass was evaluated by 31 studies (52.54%) in which 11 observed inverse relationships, nine studies showed direct relationships and 11 observed no relationship. Regarding lean mass, muscle mass, and fat-free mass components, most studies observed direct relationship with PhA (n = 37; 86.04%). It could be concluded that the phase angle was directly associated with lean mass and muscle mass in different age groups (children, adolescents, adults and older adults) and in people with different health diagnoses (HIV, cancer, hemodialysis, sarcopenia and without the diagnosis of diseases). Regarding body fat and the other investigated components, there is not enough evidence to establish the direction of associations.
本研究旨在绘制关于相位角（PhA）与健康人群和临床人群的身体成分之间关联的证据图谱。2021 年 10 月至 11 月，我们在九个电子数据库（CINAHL、LILACS、PubMed、SciELO、Scopus、SPORTDiscus、Science Direct、MEDLINE 和 Web of Science）中对该主题的信息进行了系统搜索。纳入了设计不同的研究，这些研究允许提取有关 PhA 与身体成分（细胞内液质量[BCM]、肌肉组织、骨矿物质含量、瘦体重、总脂肪量、内脏脂肪和瘦软组织质量[LSTM]）之间关系的信息。在最初确定的 11913 项研究中，有 59 项在阅读标题、摘要、全文和参考文献后被纳入。大多数研究（40.67%；n=24）的数据来自巴西样本。关于研究设计，15 项（25.42%）为纵向设计。研究的年龄组范围很广，包括 3 岁儿童和 88 岁成年人。31 项研究（52.54%）评估了体脂量，其中 11 项观察到反向关系，9 项研究显示直接关系，11 项观察到无关系。关于瘦体重、肌肉质量和去脂体重成分，大多数研究（n=37；86.04%）观察到 PhA 与 lean mass 和 muscle mass 之间存在直接关系。可以得出结论，相位角与不同年龄组（儿童、青少年、成年人和老年人）和不同健康诊断（艾滋病毒、癌症、血液透析、肌少症和无疾病诊断）人群的 lean mass 和 muscle mass 直接相关。至于体脂肪和其他研究的成分，没有足够的证据来确定关联的方向。
