Murrock Carolyn J, Zauszniewski Jaclene A
College of Nursing, University of Akron, Ohio, USA.
Women Health. 2011 Jul 22;51(5):482-96. doi: 10.1080/03630242.2011.589493.
Obesity, age, and comorbidity can lead to limitations in physical function, especially in middle aged, community-dwelling, African American women. To determine the clinical implications of limitations in physical function, instruments that assess physical function need to be tested in this population. The purpose of the authors in this secondary analysis was to report the internal consistency and validity of the Physical Function component of the Late Life Function and Disability Instrument in middle-aged, community-dwelling, African American women. In 2006, 126 community-dwelling African American women completed the Physical Function component, the Physical Activity Scale for the Elderly, and the 6 Minute Walk Test at baseline. Results indicated Cronbach's alphas were excellent (all >.92) for the Physical Function component and the three subscales. The Physical Function component correlated directly with the Physical Activity Scale for the Elderly (r = .37, p < .01) and the 6 Minute Walk Test (r = .36, p < .01) but was inversely correlated with age (r = -.42, p < .01) and comorbidity (r = -.35, p < .01). However, obesity was not correlated (r = -.11, p > .05). A three-factor structure of the Physical Function component was confirmed. Thus, the Physical Function component was a reliable and valid measure to screen African American women who were at risk for function limitations. Future recommendations are discussed.
肥胖、年龄和合并症会导致身体功能受限，尤其是在中年、居住在社区的非裔美国女性中。为了确定身体功能受限的临床意义，需要在这一人群中测试评估身体功能的工具。在这项二次分析中，作者的目的是报告晚年功能与残疾量表身体功能部分在中年、居住在社区的非裔美国女性中的内部一致性和有效性。2006年，126名居住在社区的非裔美国女性在基线时完成了身体功能部分、老年人身体活动量表和6分钟步行测试。结果表明，身体功能部分及其三个子量表的克朗巴哈系数都非常好（均>.92）。身体功能部分与老年人身体活动量表（r = .37，p < .01）和6分钟步行测试（r = .36，p < .01）直接相关，但与年龄（r = -.42，p < .01）和合并症（r = -.35，p < .01）呈负相关。然而，肥胖与之无相关性（r = -.11，p > .05）。身体功能部分的三因素结构得到了证实。因此，身体功能部分是筛查有功能受限风险的非裔美国女性的可靠且有效的指标。文中讨论了未来的建议。
