Dietary Protein Intake and Overall Diet Quality are Associated with Handgrip Strength in African American and White Adults
Dietary Protein Intake and Overall Diet Quality are Associated with Handgrip Strength in African American and White Adults
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DOI：
10.1007/s12603-018-1006-8
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发表时间：
2018-06-01
影响因子：
5.8
通讯作者：
Evans, M. K.
中科院分区：
文献类型：
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作者：
Kuczmarski, M. Fanelli;Pohlig, R. T.;Evans, M. K.
为了确定握力(HS)与非裔美国人和白人成年人蛋白质摄入量、饮食质量以及营养和心血管生物标志物的关系。HANDLS研究社区多样性社区健康老龄化(HANDLS)研究的横断面第三波(2009-2013年)。年龄在33岁到71岁之间的2468名不同社会经济背景的城市人口。收集了社会人口学相关因素、饮食摄入量和生物标志物、HS和体能指标。使用优势手的测力计测量HS。功能措施包括椅子站立、串联站立和单腿站立。两次24小时召回是使用美国农业部自动多次通过方法收集的。计算总蛋白质摄入量和饮食质量，通过遵守DASH饮食计划和2010年健康饮食指数进行评估。生物标志物包括营养性贫血以及血清白蛋白、胆固醇、镁和葡萄糖水平。样本的平均+/-SE年龄为52.3+/-0.2岁。大约61%是非裔美国人，57%是女性。女性平均+/-SE HS为29.1+/-0.2 kg，男性为45.9+/-0.4 kg。女性每公斤体重的蛋白质含量为0.94+/-0.02，而男性为1.16+/-0.02。在调整了社会人口因素、高血压和糖尿病后，HS/BMI比率与每公斤体重的蛋白质摄入量(p<；0.001)和饮食质量显著相关，通过DASH依从性(p=0.009)或2010年健康饮食指数(p=0.031)进行评估。无论男性还是女性，上三分位数的受试者与下三分位数组的受试者相比，单腿保持和串联站立的时间更长，完成5个和10个椅子站立的时间更短。在营养状况指标中，上三分位数的男性血清镁和白蛋白低于下位三分位数的男性[镁，7.4%比16.1%；白蛋白，0.4%比4.5%]。在女性中观察到的唯一区别是糖尿病的比例较低(上三分位数为14.4%，下三分位数为20.5%)。研究结果证实了蛋白质和健康饮食在维持肌肉力量方面的作用。在这个社区样本中，HS与其他体能指标显著相关，但似乎与营养风险指标没有很强的关联。这些发现支持使用HS作为功能状态的替代指标，并表明有必要进行研究，以探索其作为营养风险预测因子的作用。
To determine the association of handgrip strength (HS) with protein intake, diet quality, and nutritional and cardiovascular biomarkers in African American and White adults.Cross-sectional wave 3 (2009-2013) of the cohort Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study.Socioeconomically diverse urban population of 2,468 persons aged 33 to 71 years.Socio-demographic correlates, dietary intakes and biomarkers, HS, physical performance measures were collected. HS was measured using a dynamometer with the dominant hand. Functional measures included chair, tandem, and single leg stands. Two 24-hour recalls were collected using the US Department of Agriculture Automated Multiple Pass Method. The total protein intake and diet quality, evaluated by adherence to the DASH eating plan and Healthy Eating Index-2010, were calculated. Biomarkers included nutritional anemia, and serum levels of albumin, cholesterol, magnesium, and glucose.The mean +/- SE age of the sample was 52.3 +/- 0.2 years. Approximately 61% were African American and 57% were women. The mean +/- SE HS of women was 29.1 +/- 0.2kg and for men was 45.9 +/- 0.4 kg. Protein, gm, per kg body weight for the women was 0.94 +/- 0.02 compared to 1.16 +/- 0.02 for men. After adjusting for socio-demographic factors, hypertension, and diabetes, HS/BMI ratio was significantly associated with protein intake per kg body weight (p < 0.001) and diet quality, assessed by either the DASH adherence (p=0.009) or Health Eating Index-2010 (p=0.031) scores. For both men and women, participants in the upper tertile of HS maintained a single leg and tandem stances longer and completed 5 and 10 chair stands in shorter time compared to individuals in the lower HS tertile. Of the nutritional status indicators, the percent of men in the upper HS tertile with low serum magnesium and albumin, was significantly lower than those in the lower HS tertile [magnesium,7.4% vs 16.1%; albumin, 0.4% vs 4.5%]. The only difference observed for women was a lower percent of diabetes (14.4% for the upper HS tertile compared to 20.5% for the lower HS tertile.The findings confirm the role of protein and a healthful diet in the maintenance of muscle strength. In this community sample, HS was significantly associated with other physical performance measures but did not appear to be strongly associated with indicators of nutritional risk. These findings support the use of HS as a proxy for functional status and indicate the need for research to explore its role as a predictor of nutritional risk.