腰围的测量方法为被测者站立，双脚分开25至30厘米，体重均匀分配，在呼气之末、吸气未开始时用软尺测量经髂嵴点的腹部水平围长【31】。
臀围的测量方法为被测者两腿并拢直立，两臂自然下垂，皮尺水平放在前面的耻骨联合和背后臀大肌最凸处。【31】
腰臀比(Waist-to-Hip Ratio,WHR)是腰围和臀围的比值，例如，使用上述方法测量得到腰围结果为70cm，臀围为100cm。则腰臀比（WHR ）= 腰围÷臀围 = 70÷100 = 0.7，不属于中心性肥胖。在一系列跨文化研究中，不同年龄的男性都认为腰臀比是0.7的女性最有魅力【32】
综上所诉，单独BMI一项指标，它的统计学意义大于对个体肥胖的评判价值。体脂肪率虽然比BMI更具备参考价值，但是精确的测量体脂率往往需要较高的费用，或者过于繁琐的操作，健身房的体测仪和家用体脂称的测量方法具有很大的局限性。趋势参考和性价比角度来说都不如使用皮褶测量法（皮脂钳）和目测法。腰围或者腰臀比的测量可以很好的反映出腹部脂肪与内脏脂肪情况，如果对测量的精度有更高的要求比如有内脏脂肪相关疾病，应该定期到医院或者体检中心测量内脏脂肪情况。相对于生物电阻方法获取的体脂肪率与内脏脂肪等级，结合BMI和腰围（腰臀比）来评价自身是否肥胖，是否内脏脂肪超标，是否需要减肥更加合适。如果BMI和腰围（腰臀比）都在正常范围之内，则可以判断自身不需要以健康为目的减肥，如果对自己的身材不满意，则需要进行的是“身材管理”而不是“体重管理”，在各大媒体平台上看到的对超重或者肥胖者的一些减重建议，也许并不适合你。至于如何更好进行身材管理，并不在我们这篇文章的讨论范围之内，但是可以说，运动，在身材管理当中扮演的角色，要比其在体重管理中，重要的多。对身材管理有兴趣的朋友，可以等我后续的文章视频更新，也可以自学健身与运动知识，养成运动习惯，如果有经济预算，建议走进健身房，咨询专业的健身教练。我是Seal，一个减重165斤的佛系肥宅，最后祝你，身体健康，谢谢。
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