Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, Poland; ul. Słoneczna 45F, 10-718, Olsztyn, Poland.
Department of Psychology of Development and Education, University of Warmia and Mazury in Olsztyn, Poland; ul. Prawocheńskiego 13, 10-447, Olsztyn, Poland.
Sci Rep. 2019 Dec 12;9(1):18930. doi: 10.1038/s41598-019-55367-5.
Ageing involves significant changes in skeletal muscle mass and its functioning. This study aimed to identify the major nutrient patterns (NPs) present in a sample of adult Polish women and evaluate their associations with the skeletal muscle mass index (SMI). A cross-sectional study initially recruited 527 women, and a final analysis was carried out on 275 women aged 32-60 years. Nutrient intake was assessed using fourteen repetitions of 24-hour dietary recall. NPs were derived using principal component analysis. Associations between adherence to NPs and the SMI were evaluated using linear regression models. Three NPs were identified: 'Animal Protein-Vitamins', 'Fibre-Plant Protein-Minerals' and 'Fats'. In the adjusted model, the upper tertile compared to the bottom tertile of the 'Animal Protein-Vitamins' NP was related to a higher SMI (β = 0.123 95% CI: 0.019; 0.227; P for 1-SD increase of NP score = 0.009). No associations between the SMI and the 'Fibre-Plant Protein-Minerals' and 'Fats' NPs were observed. Our results indicate that high adherence to animal product-rich patterns might be related to higher muscle mass in adult women. Research on the influence of dietary and nutrient patterns on the quality of muscle tissue may contribute to the setting of guidelines for nutritional protection of skeletal muscle with ageing and, consequently, dietary recommendations that would improve the quality of women's lives at the later stage of life.
衰老是涉及骨骼肌质量及其功能的重大变化。本研究旨在确定波兰成年女性样本中存在的主要营养素模式（NPs），并评估它们与骨骼肌质量指数（SMI）的相关性。一项横断面研究最初招募了 527 名女性，最终对 32-60 岁的 275 名女性进行了分析。使用 14 次 24 小时膳食回顾评估营养素摄入量。使用主成分分析得出 NPs。使用线性回归模型评估了对 NPs 的依从性与 SMI 之间的关联。确定了三种 NPs：“动物蛋白-维生素”，“纤维-植物蛋白-矿物质”和“脂肪”。在调整后的模型中，与 NP 的“动物蛋白-维生素”NP 的下三分位相比，上三分位与较高的 SMI 相关（β=0.123 95%CI：0.019；0.227；NP 评分每增加 1-SD 的 P 值=0.009）。SMI 与“纤维-植物蛋白-矿物质”和“脂肪”NPs 之间没有相关性。我们的研究结果表明，高依从性的富含动物产品的模式可能与成年女性较高的肌肉质量有关。研究饮食和营养模式对肌肉组织质量的影响可能有助于制定针对衰老过程中骨骼肌营养保护的指南，以及改善女性晚年生活质量的饮食建议。
