Nutritionist. Master's degree. Ph.D student from the Graduate Program in Public Health, State University of Ceará, Fortaleza - CE, Brazil.
Nutritionist. Master's student in the Graduate Program in Nutrition and Health, State University of Ceará, Fortaleza - CE, Brazil.
Eur J Clin Nutr. 2024 Jul;78(7):639-646. doi: 10.1038/s41430-024-01439-3. Epub 2024 Apr 17.
RATIONALE/OBJECTIVE: The phase angle (PhA) is a measurement obtained from the resistance and reactance found in the bioelectrical impedance examination and is useful in assessing nutritional status and in assessing cardiometabolic diseases. Therefore, the objective was to correlate the phase angle to the anthropometric variables of cardiometabolic risk (CMR) in children and adolescents.
SUBJECTS/METHODS: Weight, height, body mass index (BMI), waist circumference (WC) and neck circumference (NC), waist-to-height ratio (WHtR), and PhA of 1231 children and adolescents aged between 5 and 18 years were assessed. PhA was assessed in tertiles and CMR was identified using the anthropometric variables BMI, WC, NC, and WHtR. Linear regression models were used to verify the association between PhA tertiles and CMR anthropometric variables, stratified by sex.
No relationship was found between PhA and CMR variables in children. In adolescents, lower values of NC (β = -0.019, p = 0.005) and BMI (β = -0.025, p = 0.023) were found in boys, WC (β = -0.017, p = 0.020), WHtR (β = -0.017, p = 0.020), NC (β = -0.011, p = 0.027) and BMI (β = -0.026, p = 0.009) in girls when they were in tertile 1 when compared to tertile 3 of the PhA, even after adjusting for age.
The PhA was directly associated with CMR in the assessed adolescents.
原理/目的：相位角（PhA）是生物电阻抗检查中测得的电阻和电抗的测量值，可用于评估营养状况和评估心血管代谢疾病。因此，本研究旨在探讨相位角与儿童和青少年心血管代谢风险（CMR）的人体测量学变量之间的相关性。
受试者/方法：评估了 1231 名 5 至 18 岁儿童和青少年的体重、身高、体重指数（BMI）、腰围（WC）和颈围（NC）、腰高比（WHtR）和 PhA。将 PhA 分为三分位，并使用 BMI、WC、NC 和 WHtR 等人体测量学变量确定 CMR。使用线性回归模型，按性别分层，验证 PhA 三分位与 CMR 人体测量学变量之间的关联。
在儿童中，未发现 PhA 与 CMR 变量之间存在关系。在青少年中，男孩的 NC（β=-0.019，p=0.005）和 BMI（β=-0.025，p=0.023）值较低，WC（β=-0.017，p=0.020）、WHtR（β=-0.017，p=0.020）、NC（β=-0.011，p=0.027）和 BMI（β=-0.026，p=0.009）在 PhA 三分位 1 时低于三分位 3，即使在调整年龄后也是如此。
在评估的青少年中，PhA 与 CMR 直接相关。
