\n\n
\n\n45 岁的老张,最近遇到一些小麻烦:原先可轻松穿上的二尺八的裤子,竟然穿不下了!
\n\n\n\n\n\n\n\n更可怕的是,记性越来越不好,动不动就关节疼,天天睡不好觉,白天没精神[1][2]。
\n\n\n\n\n\n\n\n其实,老张的情况代表了大部分中年人的尴尬。很多平时看上去穿衣显瘦的中年人,其实都有着被大肚腩折磨的“难言之隐”。
\n\n\n\n\n\n\n\n而这样的身材,医学上有它自己的专属名称——向心性肥胖!
\n\n\n\n凸起的肚子,到底有多危险?今天是世界防治肥胖日,一起来看看,这种特殊的“肥胖”为何让无数中年人发愁。
\n\n\n\n“向心性肥胖”,和我们常说的“肥胖”,其实不一样。
\n\n\n\n\n\n通常,大家口中的“肥胖”,是指体重秤上数值过大,或身体质量指数 BMIa,甚至更精准的数值——体脂率b。
\n\n\n\n\n\na. BMI=体重/身高的平方(国际单位:千克/米2)
\n\n\n\n(中国肥胖问题工作组认为:中国成年人 BMI≥28 千克/米2,即可认定为肥胖[3]。)
\n\n\n\nb. 体脂率,是指体内脂肪含量或脂肪占总体重的百分比
\n\n\n\n(目前研究多以报道最多的男性≥25%、女性≥30% 作为肥胖判定标准[4]。)
\n\n\n\n\n\n\n\n但,是不是“向心性肥胖”,这两个指标说了可都不算,还是要听皮尺的!
\n\n\n\n\n\n“大肚腩”的“大”在腰上,不在四肢上,医学上有具体标准。
\n\n\n\n\n\n\n\n2016年修订版《中国成人血脂异常防治指南》及 2020年版《中国 2 型糖尿病防治指南》中都提出,男性腰围≥90 厘米、女性腰围≥85 厘米即诊断为向心性肥胖[5],也就是我们常说的苹果型身材。
\n\n万万没想到,成年人最后的的体面和倔强,竟然有一天会落到一根皮尺上……
\n\n\n\n“我还没有啤酒肚!腰围80…80多厘米,不到90…”
\n\n可腰围测得准不准,得看世卫组织(WHO)的推荐姿势:
\n\n\n\n\n\n\n\n“空腹情况下,保持腹部放松状态,双脚分开 25~30 厘米,使体重均匀分配,测量位置在水平位髂前上嵴和第 12 肋下缘连线的中点(一般来说约为腰部目测最窄的部位)。
\n\n\n\n\n\n\n\n将测量尺紧贴软组织,但不能压迫,测量值精确到 0.1 厘米[8]。”
\n\n\n\n\n\n记得:明早空腹,测量腰围后,回来对号入座!
\n\n\n\n\n\n这个问题,说来话长。
\n\n\n\n\n\n\n\n身体脂肪的分布,会随年龄增长变化,中老人脂肪尤其容易堆积腹部,形成向心性肥胖,腰围对中年人的健康,意义重大。
\n\n\n\n\n\n\n\n国内外多项研究表明,向心性肥胖是预测中年人心血管疾病的一个重要风向标!
\n\n\n\n\n\n\n\n我国一项基于5175位40~79岁中老年人的研究发现:
\n\n\n\n\n\n\n\n向心性肥胖人群,“坏胆固醇”——甘油三酯(TG)c及低密度脂蛋白胆固醇(LDL-C)d水平均明显高于非向心性肥胖人群, 而“好胆固醇”——高密度脂蛋白胆固醇(HDL-C)e水平明显低于非腹型肥胖人群[7]。
\n\n\n\n\n\n医典小课堂
\n\n\n\n\n\nTG、LDL-C、HDL-C 都是啥?
\n\n\n\n\n\n\n\n1.TG 水平增高,心脑血管疾病风险增加
\n\n\n\n\n\n\n\n2.LDL 水平增高,动脉粥样硬化危险增加
\n\n\n\n\n\n\n\n3.HDL 水平降低,预示心血管疾病发生风险增高
\n\n\n\n\n\n\n\n简而言之,向心性肥胖的人,心脑血管疾病风险大!
\n\n\n\n\n\n\n\n需要说明的是,向心性肥胖的人,其它身材指标,往往都在正常范围。
\n\n\n\n\n\n\n\n这就让腰围这个简单易测又重要的身体指标,在过去一直被忽视。
\n\n\n\n\n\n\n\n \n\n最残酷的现实是,世界上并没有真正有效的局部瘦腰减肥方法!
\n\n\n\n\n\n\n\n“每天扭扭腰,消灭大肚腩”也只能是一个美好的传说。
\n\n\n\n\n\n\n\n想要瘦腰,和大肚腩说拜拜,还是听听钟南山院士的健康经:
\n\n\n\n\n\n勤锻炼,心态好,不要吃太饱!
\n\n\n\n\n\n\n\n
\n\n
(图片来源:新京报)
\n\n\n\n简单说来,还是那句“管住嘴,迈开腿”!然后,随时调整好自己的心情。
\n\n\n\n① 管住嘴:减少热量摄入,调整饮食结构,做到低盐、低油、低糖饮食,注意营养、荤素搭配;
\n\n\n\n\n\n\n\n② 迈开腿:增加热量消耗,中年人基础代谢随年龄增长逐步降低,更需要通过适当运动帮助增加热量消耗。比如慢跑、游泳、广场舞、快走、太极拳等运动,长期坚持下去都是不错的选择。
\n\n\n\n\n\n坚持热量消耗持续大于热量摄入,保证二者之间热量差,长此以往,就会通过全身减脂达到消灭大肚腩的目标。
\n\n\n\n此外,如果同时进行卷腹运动,对增加腹部肌肉、防止腹部皮肤松弛也会有帮助。
\n\n\n\n\n\n希望,每个爱生活的你,告别油腻和肚腩,留住健康好体魄!
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