Division of Geriatrics, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Department of Internal Medicine, Ataturk University Faculty of Medicine, Erzurum, Turkey.
Aging Male. 2020 Dec;23(5):477-482. doi: 10.1080/13685538.2018.1530208. Epub 2018 Nov 13.
Sarcopenic-obesity (SO) is associated with low-functional-status and mortality. Few studies evaluated the definition and prevalence of SO. We aimed to investigate the fat-percentage cut-off values for obesity and prevalences of obesity, SO in community-dwelling older adults in Turkey.
Body-composition was measured using bioimpedance-analysis. Sarcopenia was defined by European-Working-Group-on-Sarcopenia-in-Older-People criteria. Obesity was defined by two different methods, a fat-percentile above 60th percentile (Zoico-method) or a BMI of ≥30 kg/m (WHO-definition).
We enrolled 992 subjects (308 men, 684 women). Body fat-percentage thresholds for obesity were 27.3% for men and 40.7% for women according to Zoico-method. The rates of obesity were about 40% in both genders by Zoico-method; 29.2% versus 53.7% for men and women by WHO definition. Prevalences-of-sarcopenia was 3.1% versus 0.4%; SO was 0.3% versus 0.1% when obesity was assessed with Zoico-method in men and women, respectively. No case of SO was defined when obesity was assessed using WHO-definition.
The threshold for obesity definition according to Zoico-method was similar to other European-populations. While obesity-prevalences were considerably high, SO prevalences were low but comparable to other populations. This low-prevalence seems to be due to underestimation of sarcopenia in obese subjects when skeletal-muscle-mass was adjusted by height to recognize low-muscle-mass.
肌少症合并肥胖（SO）与低功能状态和死亡率相关。很少有研究评估 SO 的定义和流行率。我们旨在研究土耳其社区居住的老年人中肥胖和肥胖、SO 的脂肪百分比截断值。
使用生物阻抗分析法测量身体成分。按照欧洲老年人肌少症工作组的标准定义肌少症。通过两种不同的方法定义肥胖，一种是脂肪百分比超过第 60 百分位（Zoico 方法），另一种是 BMI 大于等于 30kg/m（WHO 定义）。
我们纳入了 992 名受试者（308 名男性，684 名女性）。根据 Zoico 方法，男性肥胖的体脂百分比阈值为 27.3%，女性为 40.7%。根据 Zoico 方法，两性的肥胖率均约为 40%；根据 WHO 定义，男性为 29.2%，女性为 53.7%。当使用 Zoico 方法评估肥胖时，男性和女性的肌少症发生率分别为 3.1%和 0.4%；SO 的发生率分别为 0.3%和 0.1%。当使用 WHO 定义评估肥胖时，未定义 SO。
根据 Zoico 方法定义肥胖的阈值与其他欧洲人群相似。尽管肥胖的流行率相当高，但 SO 的流行率较低，但与其他人群相当。这种低流行率似乎是由于在肥胖人群中，当通过身高调整骨骼肌质量以识别低肌肉质量时，低估了肌少症。
