Looker Anne C, Wang Chia-Yih
NCHS Data Brief. 2015 Jan(179):1-8.
Five percent of adults aged 60 and over had weak muscle strength and 13% had intermediate muscle strength, as defined by the new FNIH criteria. Weak muscle strength is clinically relevant because it is associated with slow gait speed, an important mobility impairment. It is also linked to an increased risk of death. The prevalence of reduced muscle strength increased with age and was higher in non-Hispanic Asian and Hispanic persons than in non-Hispanic white or non-Hispanic black persons. Decreasing muscle strength was linked with increased difficulty in rising from an armless chair, which is another important type of mobility impairment.
按照美国国立卫生研究院（FNIH）的新标准定义，60岁及以上的成年人中，5%的人肌肉力量较弱，13%的人肌肉力量中等。肌肉力量弱在临床上具有相关性，因为它与步态缓慢有关，而步态缓慢是一种重要的行动能力障碍。它还与死亡风险增加有关。肌肉力量下降的患病率随年龄增长而增加，在非西班牙裔亚裔和西班牙裔人群中高于非西班牙裔白人或非西班牙裔黑人。肌肉力量下降与从无扶手椅子上起身困难增加有关，这是另一种重要的行动能力障碍。
