JACC:梨型身材VS苹果型身材 谁更健康?
Bioon · 2014/09/03
德州大学西南医学中心的科学家通过研究表示,相比体质指数相似但脂肪分布在全身的个体来讲,脂肪聚集在腹部的个体(苹果型身材)或许患高血压的风险较高,相对而言梨型身材更加健康。


梨形身材者一般下半身比较丰满,即腰细屁股大。经研究发现,拥有梨形身材的人记忆力较差,另外梨形身材有助于预防新陈代谢疾病,更易长寿。近日一向新的研究也支撑了这项理论。

苹果型身材是指下肢纤细修长,但是腰腹却突出的浑圆,是较容易减肥的体型。

近日,刊登在国际杂志Journal of the American College of Cardiology上的一篇研究论文中,来自德州大学西南医学中心的科学家通过研究表示,相比体质指数相似但脂肪分布在全身的个体来讲,脂肪聚集在腹部的个体(苹果型)或许患高血压的风险较高。

众所周知,肥胖是引发高血压的一个风险因子,有研究表明,脂肪在个体机体中的聚集会增加个体的其它健康风险,比如心血管疾病及癌症等;然而高血压和特殊部位脂肪的积累引起的肥胖之间的关系却尚不清楚。

这项研究中,研究者对903名病人是否患高血压进行了平均长达7年的跟踪调查研究,高血压主要表现为收缩压大于等于140,舒张压大于等于90。研究者Aslan T. Turer说道,总的来讲,内脏脂肪积累引起的苹果型身材和梨型身材完全相对,因此当人们照镜子时发现脂肪都集中于机体中部,那么其就往往与腹部脂肪水平过高相关。

在跟踪研究最后,研究者发现,25%的病人都发生了高血压,BMI指数较高和高血压的发生风险增加直接相关,将腹部脂肪含量、总脂肪含量及下半身脂肪含量都考虑进去的话,仅仅腹部脂肪和高血压发生之间存在独立相关的关系,而腹部脂肪和高血压发生的强相关性也是在对机体腹膜后脂肪的研究中发现的,腹膜后脂肪现象是一种内脏脂肪位于腹腔中并且围绕着肾脏的一种现象。

最后研究者表示,高血压和腹膜后脂肪存在之间的关联或许就揭示了,围绕着肾脏的脂肪所引发的效应就会引发机体患高血压,这为后期研究人员开发高血压的预防和治疗手段将会提供新的研究思路和帮助。

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  • The Relationship of Body Mass and Fat Distribution With Incident Hypertension : Observations From the Dallas Heart Study

    Background:Obesity has been linked to the development of hypertension, but whether total adiposity or site-specific fat accumulation underpins this relationship is unclear. Objectives:This study sought to determine the relationship between adipose tissue distribution and incident hypertension. Methods:Normotensive participants enrolled in the Dallas Heart Study were followed for a median of 7 years for the development of hypertension (systolic blood pressure [SBP] ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, or initiation of blood pressure medications). Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) was quantified by magnetic resonance imaging and proton-spectroscopic imaging, and lower body fat (LBF) was imaged by dual-energy x-ray absorptiometry. Multivariable relative risk regression was performed to test the association between individual fat depots and incident hypertension, adjusting for age, sex, race/ethnicity, diabetes, smoking, SBP, and body mass index (BMI). Results:Among 903 participants (median age, 40 years; 57% women; 60% nonwhite; median BMI 27.5 kg/m2), 230 (25%) developed incident hypertension. In multivariable analyses, higher BMI was significantly associated with incident hypertension (relative risk: 1.24; 95% confidence interval: 1.12 to 1.36, per 1-SD increase). However, when VAT, SAT, and LBF were added to the model, only VAT remained independently associated with incident hypertension (relative risk: 1.22; 95% confidence interval: 1.06 to 1.39, per 1-SD increase). Conclusions:Increased visceral adiposity, but not total or subcutaneous adiposity, was robustly associated with incident hypertension. Additional studies will be needed to elucidate the mechanisms behind this association.

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