Physical activity of elderly patients with rheumatoid arthritis and healthy individuals: an actigraphy study.
Physical activity of elderly patients with rheumatoid arthritis and healthy individuals: an actigraphy study.
复制标题
DOI：
10.1186/s13030-015-0046-0
复制
发表时间：
2015
影响因子：
2.1
通讯作者：
Matsushita M
中科院分区：
文献类型：
--
作者：
Hashimoto T;Yoshiuchi K;Inada S;Shirakura K;Wada N;Takeuchi K;Matsushita M
类风湿性关节炎（RA）的主要症状有哪些？佩戴在腰部的加速计已被用于评估慢性病患者的身体活动。它对于评估中度到剧烈的活动是有用的，尽管它往往低估了轻度或轻度的活动，如家务或家庭责任。戴在手腕上的加速度计（即，活动记录仪）最近被用于捕获不活动个体的日常身体活动。本研究的目的是调查RA患者和健康个体通过活动记录仪测量的身体活动，并调查活动记录数据与自我报告的身体功能之间的关联。受试者为20例RA患者和20例健康人。所有参与者在手腕上连续6-7天佩戴活动记录仪。他们还完成了健康评估问卷残疾指数（HAQ-DI）和医疗结局研究（MOS）36项简式健康调查（SF-36）。我们从活动记录数据中提取了三个参数：平均活动计数（MAC）、峰值活动计数（PAC）和低活动率（LAR）。这三个参数进行了比较，RA患者和健康人之间的自我报告问卷。RA患者的MAC显著低于健康人，LAR显著高于健康人。PAC在两组之间没有差异。RA患者和健康人的LAR与MAC呈负相关。RA患者LAR随MAC升高而降低的比率是健康者的2倍。在RA患者中，LAR与HAQ-DI评分和SF-36的两个维度（即，“身体功能”和“身体疼痛”）。使用活动记录仪调查低活动计数的比例可能有助于识别RA患者的身体功能特征。
Most people with rheumatoid arthritis (RA) are physically inactive. An accelerometer worn on the waist has been used to evaluate physical activity in people with chronic conditions. It is useful for evaluating moderate to vigorous activity, although it tends to underestimate light or mild activities such as housework or family duties. An accelerometer worn on the wrist (i.e., actigraph) has recently been used to capture daily physical activity in inactive individuals. The purposes of this study were to investigate physical activity measured by an actigraph in patients with RA and in healthy individuals and to investigate the association between actigraphic data and self-reported physical function. The subjects were 20 RA patients and 20 healthy individuals. All participants wore an actigraph on their wrist for 6–7 consecutive days. They also completed the Health Assessment Questionnaire disability index (HAQ-DI) and the Medical Outcomes Study (MOS) 36-item short form health survey (SF-36). We extracted three parameters from the actigraphic data: mean activity count (MAC), peak activity count (PAC), and low activity ratio (LAR). These three parameters were compared between the RA patients and healthy individuals and with the self-reported questionnaires. The MAC was significantly lower and the LAR was significantly higher in RA patients than in healthy individuals. The PAC was not different between the two groups. The LAR was negatively correlated with the MAC for the RA patients and for the healthy individuals. The decrease ratio of the LAR with the increase of the MAC for the RA patients was twice that of the healthy participants. In the RA patients, the LAR was significantly and moderately correlated with the HAQ-DI score and two dimensions of the SF-36 (i.e., “physical functioning” and “bodily pain”). Investigation of the proportion of low activity count using an actigraph may be useful to identify characteristics of the physical function in RA patients.