Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
Applied Kinesiology Laboratory-LCA, School of Physical Education, University of Campinas, Campinas 13083-970, Brazil.
Nutrients. 2020 Jun 1;12(6):1635. doi: 10.3390/nu12061635.
The present study investigated and compared the patterns of dietary protein intake and physical function in Brazilian and Italian older women. Seventy-five Brazilian older women were recruited in a community senior center. Fifty-three age-matched Italian older women were selected from participants of the Longevity check-up (Lookup) 7+ study. In both samples, physical performance was evaluated by isometric handgrip strength (IHG) and five-time sit-to-stand (5 × STS) tests, while diet was assessed through 24-h recall. Results indicated that Brazilian women had a higher intake of plant-based protein (52.7% vs. 30.5% kcal), while Italian women consumed greater amounts of animal-derived protein (29.7% vs. 41.5% kcal). In Brazilian women, the binary logistic regression analysis indicated that body weight-adjusted protein consumption was associated with IHG adjusted by body mass index and with 5 × STS performance. In the Italian sample, the intake of isoleucine, leucine, and valine was significantly associated with 5 × STS performance. Our findings indicate that Brazilian and Italian community-dwelling older women show different patterns of protein intake, with higher consumption of plant-based protein in the Brazilian sample and higher ingestion of animal-derived protein in the Italian subgroup. These dietary patterns may differentially impact the relationship between physical function and protein intake observed in Brazilian and Italian older women.
本研究调查并比较了巴西和意大利老年女性的膳食蛋白质摄入模式和身体功能。在一个社区老年中心招募了 75 名巴西老年女性，从长寿检查（Lookup）7+研究的参与者中选择了 53 名年龄匹配的意大利老年女性。在这两个样本中，通过等长握力（IHG）和五次坐站（5×STS）测试评估身体表现，而通过 24 小时回忆评估饮食。结果表明，巴西女性的植物性蛋白质摄入量较高（52.7% vs. 30.5% 千卡），而意大利女性动物性蛋白质摄入量较高（29.7% vs. 41.5% 千卡）。在巴西女性中，二元逻辑回归分析表明，体重调整后的蛋白质摄入量与身体质量指数调整后的 IHG 和 5×STS 表现相关。在意大利样本中，异亮氨酸、亮氨酸和缬氨酸的摄入量与 5×STS 表现显著相关。我们的研究结果表明，巴西和意大利社区居住的老年女性表现出不同的蛋白质摄入模式，巴西样本中植物性蛋白质的消耗较高，而意大利亚组中动物性蛋白质的摄入较高。这些饮食模式可能会对巴西和意大利老年女性中观察到的身体功能和蛋白质摄入之间的关系产生不同的影响。
