体脂秤真能测出脂肪吗 它怎么分辨脂肪和非脂肪组织
来源:
2020-03-12
体脂秤真能测出脂肪吗可以的。采用的是BIA生物电阻抗测量法,用户光脚(要让人的皮肤和测量电极接触)站在体脂秤上,微弱电流通过,测出一个电阻值,根据用户的身高、年龄和性别,带入大数据样本模型测算得出。这个原理是因为脂肪不导电,肌肉含水分多,导电性好,所以通过两点间电流和电压的变化,可以测算出电阻,阻力越高,脂肪含量越高。主要的变量其实是体内含水量,因此只有在每日固定时间,非剧烈运动出汗后测量,基本是准确的。
体脂秤怎么分辨人体内的脂肪和非脂肪组织实际上,体脂秤基于的是一种测量体成份的技术,即“生物电阻抗分析法”。这种技术的原理,简单来说,就是靠脂肪和瘦体重不同的导电率,来区分它们。而具体是因为脂肪和瘦体重里的水分含量不一样,所以电阻率也不一样,瘦体重水分更多,电阻也更低。脂肪因为含水量非常小,所以电阻要高一些,以此可以区分人体内的脂肪和非脂肪组织。脂肪和瘦体重是什么意思人体成份,一般指组成我们身体的宏观成份,主要分为两部分:脂肪和瘦体重(LBM)。脂肪即我们身上的肥肉,包括内脏中的储存脂肪。“瘦体重”这概念,很多人理解成肌肉,实际上不对。瘦体重,除了肌肉、还包括骨骼、极少量必须脂肪,和其它一些非脂肪组织。对于健身减肥者来说,脂肪,我们都希望少一点,瘦体重,希望尽量多一点。不管是从审美的角度,还是从健康的角度来说,都有好处。体脂秤怎么测量出体脂率BIA分析法,即在人的皮肤表面放置几个接触电极,输入一个固定电流,能获得一个电阻抗值。再用公式算出人体的体成份。我们平常使用的体脂秤上,都有几个光滑的金属触板,需要我们光脚踩上去,或者用手握着。这些金属触板,就是接触电极。BIA分析的*后结果是利用电阻抗值通过公式计算出来的,所以BIA是个“黑盒子”方法,测量出的直接结果很简单,就一个电阻抗值,剩下的结论都需要计算。这些计算体成份的公式,都是经验公式,而且不止一种。不同的公式之间,差异还挺大。所以,BIA分析法能不能**测量体成份,不光要依赖测量数据的准确,也还要看使用哪种公式。(相关链接:智能体重秤原理)
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体脂秤怎么分辨人体内的脂肪和非脂肪组织实际上,体脂秤基于的是一种测量体成份的技术,即“生物电阻抗分析法”。这种技术的原理,简单来说,就是靠脂肪和瘦体重不同的导电率,来区分它们。而具体是因为脂肪和瘦体重里的水分含量不一样,所以电阻率也不一样,瘦体重水分更多,电阻也更低。脂肪因为含水量非常小,所以电阻要高一些,以此可以区分人体内的脂肪和非脂肪组织。脂肪和瘦体重是什么意思人体成份,一般指组成我们身体的宏观成份,主要分为两部分:脂肪和瘦体重(LBM)。脂肪即我们身上的肥肉,包括内脏中的储存脂肪。“瘦体重”这概念,很多人理解成肌肉,实际上不对。瘦体重,除了肌肉、还包括骨骼、极少量必须脂肪,和其它一些非脂肪组织。对于健身减肥者来说,脂肪,我们都希望少一点,瘦体重,希望尽量多一点。不管是从审美的角度,还是从健康的角度来说,都有好处。体脂秤怎么测量出体脂率BIA分析法,即在人的皮肤表面放置几个接触电极,输入一个固定电流,能获得一个电阻抗值。再用公式算出人体的体成份。我们平常使用的体脂秤上,都有几个光滑的金属触板,需要我们光脚踩上去,或者用手握着。这些金属触板,就是接触电极。BIA分析的*后结果是利用电阻抗值通过公式计算出来的,所以BIA是个“黑盒子”方法,测量出的直接结果很简单,就一个电阻抗值,剩下的结论都需要计算。这些计算体成份的公式,都是经验公式,而且不止一种。不同的公式之间,差异还挺大。所以,BIA分析法能不能**测量体成份,不光要依赖测量数据的准确,也还要看使用哪种公式。(相关链接:智能体重秤原理)
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- SELECT `id`,`title` FROM `mk_information` WHERE `status` = 'passed' AND `id` = 3000099 LIMIT 1 [ RunTime:0.001085s ]
- SELECT `id`,`title` FROM `mk_information` WHERE `status` = 'passed' AND `id` = 3000101 LIMIT 1 [ RunTime:0.000634s ]
0.084062s