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Abstract：
BACKGROUND: The main aim of this study is to assess the prevalence of sarcopenia, according to the criteria of the European Working Group on Sarcopenia in Older People, in men and women living in Spanish nursing homes.
METHODS: Multi-centre study was conducted on ambulatory persons over 69 years old living in nursing homes. Body composition was assessed using bioimpedance analysis, grip strength with a Jamar dynamometer, and gait speed using the 4 metre walk test. Sarcopenia was assessed using the European Working Group on Sarcopenia in Older People criteria (gait speed<0.8m/s; grip strength<30kg in men or 20kg in women, and muscle mass index <8.31kg/m(2) in men or<6.68kg/m(2) in women).
RESULTS: The study included 276 subjects with a median age 87.2 years, and with 69% women. Sarcopenia was demonstrated in 37% (15% men, 46% women), 37% had low muscle mass, 86% low gait speed, and 95% low grip strength. Prevalence of sarcopenia increased with advancing age. Both weakness and low gait speed was observed in 90% of individuals with sarcopenia, with 39% of the total having low gait speed, and 38% with weakness.
CONCLUSIONS: Sarcopenia is a frequent condition in older persons living in nursing homes, especially among women. Most of the cases are severe, with both low muscle strength and physical performance. Although muscle function is altered in 9 out 10 participants, most of them have preserved muscle mass.
METHODS: Multi-centre study was conducted on ambulatory persons over 69 years old living in nursing homes. Body composition was assessed using bioimpedance analysis, grip strength with a Jamar dynamometer, and gait speed using the 4 metre walk test. Sarcopenia was assessed using the European Working Group on Sarcopenia in Older People criteria (gait speed<0.8m/s; grip strength<30kg in men or 20kg in women, and muscle mass index <8.31kg/m(2) in men or<6.68kg/m(2) in women).
RESULTS: The study included 276 subjects with a median age 87.2 years, and with 69% women. Sarcopenia was demonstrated in 37% (15% men, 46% women), 37% had low muscle mass, 86% low gait speed, and 95% low grip strength. Prevalence of sarcopenia increased with advancing age. Both weakness and low gait speed was observed in 90% of individuals with sarcopenia, with 39% of the total having low gait speed, and 38% with weakness.
CONCLUSIONS: Sarcopenia is a frequent condition in older persons living in nursing homes, especially among women. Most of the cases are severe, with both low muscle strength and physical performance. Although muscle function is altered in 9 out 10 participants, most of them have preserved muscle mass.
摘要：
背景：这项研究的主要目的是评估少肌症的患病率，根据欧洲老年人肌肉减少症工作组的标准，住在西班牙养老院的男人和女人。
方法：多中心研究是对居住在疗养院的69岁以上的非卧床人员进行的。使用生物阻抗分析评估身体成分，用Jamar测力计握力，和使用4米步行测试的步态速度。使用欧洲老年人肌肉减少症工作组标准（步态速度<0.8m/s；男性握力<30kg或女性为20kg，男性和肌肉质量指数<8.31kg/m（2）或女性<6.68kg/m（2））。
结果：该研究包括276名受试者，中位年龄87.2岁，69%是女性。37%的患者出现肌肉减少症(15%的男性，46％的妇女），37%的人肌肉质量低，86%低步态速度，和95％的低握力。肌少症的患病率随着年龄的增长而增加。在90％的肌肉减少症患者中观察到无力和低步态速度，39%的人步态速度低，和38％的弱点。
结论：肌肉减少症是生活在疗养院的老年人的常见病，尤其是女性。大多数病例都很严重，肌肉力量和身体表现都很低。尽管10名参与者中有9名肌肉功能发生了改变，他们中的大多数都保留了肌肉质量。
方法：多中心研究是对居住在疗养院的69岁以上的非卧床人员进行的。使用生物阻抗分析评估身体成分，用Jamar测力计握力，和使用4米步行测试的步态速度。使用欧洲老年人肌肉减少症工作组标准（步态速度<0.8m/s；男性握力<30kg或女性为20kg，男性和肌肉质量指数<8.31kg/m（2）或女性<6.68kg/m（2））。
结果：该研究包括276名受试者，中位年龄87.2岁，69%是女性。37%的患者出现肌肉减少症(15%的男性，46％的妇女），37%的人肌肉质量低，86%低步态速度，和95％的低握力。肌少症的患病率随着年龄的增长而增加。在90％的肌肉减少症患者中观察到无力和低步态速度，39%的人步态速度低，和38％的弱点。
结论：肌肉减少症是生活在疗养院的老年人的常见病，尤其是女性。大多数病例都很严重，肌肉力量和身体表现都很低。尽管10名参与者中有9名肌肉功能发生了改变，他们中的大多数都保留了肌肉质量。
