Rosa Bruna, Valdiviesso Rui, Cunha-Rodrigues Micaela, Rodrigues Mónica, Lucena Maria Luisa, Guerra Rita S, Sousa Ana S, Mendes Joana, Sousa-Santos Ana Rita, Silva Cláudia, Borges Nuno, Amaral Teresa F
FCNAUP, Faculty of Nutrition and Food Sciences of the University of Porto, Porto, Portugal.
CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal.
Eur J Clin Nutr. 2025 May;79(5):435-442. doi: 10.1038/s41430-024-01550-5. Epub 2024 Dec 4.
The finger-ring test (FRT) offers a simple method to screen older adults at increased risk of sarcopenia.
To investigate the association between the FRT and lean soft tissue mass estimated by dual-energy X-ray absorptiometry (DXA), and to further elucidate the FRT as an indicator of muscle mass, while accounting for potential confounders, in a community-dwelling population.
Within this cross-sectional study 430 community-dwelling individuals aged 18 to 79 (286 women (66.5%) and 144 men (33.5%)) were enrolled. Data regarding FRT and anthropometric measurements were collected. Whole-body composition was estimated using DXA. Binary and ordinal logistic regressions were performed.
The frequency of smaller calf, just fits, and bigger calf was 17.7%, 33.7%, and 48.6%, respectively. Regardless of sex, higher appendicular lean soft tissue mass adjusted for height squared was observed for higher FRT categories (p < 0.001). For the ordinal logistic regression model, each unity of increment in appendicular lean soft tissue mass adjusted for height squared (kg/m) was associated with a higher probability of being allocated to higher finger-ring test categories, in both genders. A higher cumulative adjusted odds ratio was found for women (7.53; 95% confidence interval: 4.58-12.38) than for men (2.99; 2.00-4.48).
By demonstrating an association between the appendicular lean soft tissue mass estimated by DXA and the FRT, these results strengthen the utility of this simple self-test as an indicator of muscle mass, which can be used in the primary prevention of muscle mass decline and its recovery.
指环测试（FRT）提供了一种简单的方法来筛查肌肉减少症风险增加的老年人。
在社区居住人群中，研究指环测试（FRT）与通过双能X线吸收法（DXA）估算的瘦软组织量之间的关联，并在考虑潜在混杂因素的情况下，进一步阐明FRT作为肌肉量指标的情况。
在这项横断面研究中，纳入了430名年龄在18至79岁之间的社区居住个体（286名女性（66.5%）和144名男性（33.5%））。收集了有关指环测试（FRT）和人体测量的数据。使用DXA估算全身成分。进行了二元和有序逻辑回归分析。
小腿较小、刚好合适和小腿较大的频率分别为17.7%、33.7%和48.6%。无论性别如何，对于较高的指环测试类别，调整身高平方后的上肢瘦软组织量更高（p<0.001）。对于有序逻辑回归模型，在两性中，调整身高平方后的上肢瘦软组织量（kg/m）每增加一个单位，被分配到更高指环测试类别的概率就更高。女性的累积调整优势比（7.53；95%置信区间：4.58 - 12.38）高于男性（2.99；2.00 - 4.48）。
通过证明DXA估算的上肢瘦软组织量与指环测试（FRT）之间的关联，这些结果加强了这种简单自我测试作为肌肉量指标的实用性，可用于肌肉量下降及其恢复的一级预防。
