Objective: This study explored the time of day effect of balance performance, functional capacities and risk of fall in three different times in patients with rheumatoid arthritis (RA) and the association between these variations and those of RA symptoms.Methods: A "discontinual" protocol, composed of three test sessions, carried out at 6 am, 2 pm and 10 pm was set up, in order to investigate the time of day effect of balance performance, functional capacities, risk of fall, stiffness, range of motion, swollen and painful joints in women with RA.Results: Time Up and Go Test (TUGT), Functional Reach Test (FRT) and tinetti test scores were significantly higher (p < .01) at 6 am and at 10 pm compared to 2 pm. Stiffness, range of motion, swollen and painful joints values were significantly higher (p < .01) at 6 am and at 10 pm compared to 2 pm. A significant difference was observed on the stiffness, range of motion and swollen joints values between 6 am and 10 pm that were higher at 6 am (p < .05).Using Pearson's coefficient, correlations were found between RA symptom values; and TUGT, FRT and Tinetti test scores.Conclusion: Results showed a time of day effect of balance performance, functional capacities and risk of falls in women with RA. This variation indicates an alteration of performance at 6 am and 10 pm. Fluctuations of stiffness, limited range of motion, swollen and painful joints noted are concomitant to those of balance performance, functional capacities, and risk of fall.Abbreviations: RA: rheumatoid arthritis; H&O questionnaire: Horne and Ostberg questionnaire; PSQI: Pittsburgh sleep quality index; HAQ: health assessment questionnaire; SF-36: the short form-36; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; TUGT: Time Up and Go Test; FRT: Functional Reach Test.

中文翻译：

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一天中的时间对类风湿关节炎妇女的平衡性能，功能能力和跌倒风险的影响。

目的：本研究探讨风湿性关节炎（RA）患者在三个不同时间的平衡表现，功能能力和跌倒风险的每日时间影响，以及这些变化与RA症状之间的关系。方法：“不连续”制定协议，由三个测试阶段组成，分别在上午6点，下午2点和晚上10点进行，以研究一天中平衡性能，功能能力，跌倒风险，僵硬，运动范围，肿胀的影响结果：6时和10时相比，下午2时，Time Up and Go测试（TUGT），功能性触及测试（FRT）和tinetti测试得分明显更高（p <.01）。僵硬，活动范围，关节肿胀和疼痛的值明显更高（p <。01）在上午6点和晚上10点，而下午2点。在6 am至10 pm之间的刚度，运动范围和关节肿胀值上观察到显着差异，在6 am时更高（p <.05）。使用皮尔森系数，发现RA症状值之间具有相关性。结论：结果显示，RA患者的平衡能力，功能能力和跌倒风险在一天中有一定的影响。这种变化表明上午6点和晚上10点的表演发生了变化。刚度波动，活动范围有限，关节肿胀和疼痛与平衡表现，功能能力和跌倒风险有关。H＆O问卷：Horne和Ostberg问卷；PSQI：匹兹堡睡眠质量指数；HAQ：健康评估问卷；SF-36：简称36；WOMAC：安大略省西部和麦克马斯特大学骨关节炎指数；TUGT：Time Up and Go测试；FRT：功能范围测试。