Internal Medicine and Clinical Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.
Internal Medicine and Clinical Nutrition Unit, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.
Nutrition. 2021 Jul-Aug;87-88:111199. doi: 10.1016/j.nut.2021.111199. Epub 2021 Feb 13.
Hand grip strength (HGS) is frequently used in clinical practice, resulting in a potential marker of nutritional status. This study aimed to develop reference values of HGS in Italian women with different categories of body mass index (BMI). Additionally, the main predictors of HGS were identified.
A cross-sectional study was conducted in Italian women between ages 16 and 55 y with different categories of BMI at the Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples Italy. The whole sample was divided into tertiles according to BMI: 15 to 17.29 kg/m (T1), 17.3 to 19.9 kg/m (T2), and 20 to 25 kg/m (T3). Anthropometry, bioimpedance analysis, and muscle strength by an HGS test were evaluated. The cut-off values for HGS were developed for all participants and stratified by age group. Finally, a multivariate linear regression analysis was performed to assess the main predictors of HGS.
A total of 529 women with a mean age of 23.2 ± 7.0 y and an average BMI of 18.9 ± 2.5 kg/m were analyzed. HGS was higher for the dominant hand than for the non-dominant hand in all BMI tertiles. On both sides, according to age groups, HGS increased with increasing age in T1 and T3, whereas it increased in the women between ages 20 and 30 y in T2 only. Multivariate linear regression analysis showed that predictors of HGS varied according to tertiles. Specifically, we found that body weight (R = 0.252) was the main predictor in T1, whereas phase angle (PhA) was the main determinant in both T2 (R = 0.240) and T3 (R = 0.216).
This study defined the normal reference values of HGS in Italian women with different BMI ranges, stratifying the sample group by age. Additionally, the main predictors of HGS were assessed for each BMI tertile. In primary malnutrition (T1), the main predictor of HGS was body weight, whereas in the other two tertiles (T2, T3), the PhA was the main predictor of HGS.
握力（HGS）常用于临床实践，可能是营养状况的标志。本研究旨在为意大利不同 BMI 类别女性制定 HGS 的参考值。此外，还确定了 HGS 的主要预测因素。
本研究为横断面研究，在意大利那不勒斯费德里科二世大学医院临床医学与外科学系进行，纳入年龄在 16 至 55 岁之间、BMI 不同类别的意大利女性。根据 BMI 将整个样本分为三分位：15 至 17.29kg/m（T1）、17.3 至 19.9kg/m（T2）和 20 至 25kg/m（T3）。评估了人体测量学、生物阻抗分析和 HGS 测试的肌肉力量。为所有参与者制定了 HGS 的截断值，并按年龄组分层。最后，进行了多元线性回归分析以评估 HGS 的主要预测因素。
共分析了 529 名女性，平均年龄为 23.2 ± 7.0 岁，平均 BMI 为 18.9 ± 2.5kg/m。在所有 BMI 三分位中，优势手的 HGS 均高于非优势手。根据年龄组，在 T1 和 T3 中，HGS 随年龄增长而增加，而在 T2 中，HGS 仅在 20 至 30 岁的女性中增加。多元线性回归分析显示，HGS 的预测因素因三分位而异。具体来说，我们发现体重（R=0.252）是 T1 的主要预测因素，而相位角（PhA）是 T2（R=0.240）和 T3（R=0.216）的主要决定因素。
本研究定义了意大利不同 BMI 范围女性的 HGS 正常参考值，按年龄对样本组进行分层。此外，还评估了每个 BMI 三分位的 HGS 主要预测因素。在原发性营养不良（T1）中，HGS 的主要预测因素是体重，而在其他两个三分位（T2、T3）中，HGS 的主要预测因素是 PhA。
