Aarhus University Hospital, Aarhus, Denmark.
Arthritis Care Res (Hoboken). 2019 Feb;71(2):271-280. doi: 10.1002/acr.23795.
Juvenile idiopathic arthritis (JIA) may cause functional impairment and reduced time engaged in physical activity. The aim of this study was to investigate the habits of patients with JIA regarding participation in club sports, leisure-time physical activity, and school-educational physical activity and relate this to objectively measured physical activity using accelerometry and to compare the findings with those in healthy controls.
Consecutive patients from the Aarhus University Hospital outpatient clinic were included. Clinical characteristics, functional ability, and exploration of specific habits in club sports, leisure-time physical activity, and school-educational physical activity (based on a standardized questionnaire) in patients were recorded and compared with those in healthy controls. The intensity and frequency of physical activity were measured by accelerometer monitoring, using ActiGraph GT1M.
Sixty-eight patients with JIA and 118 healthy control subjects were included. Despite having low disease activity, children with JIA had significantly lower accelerometry-monitored physical activity levels compared with healthy controls. The distribution of specific club sport activities was the same among patients and controls. However, the proportion of patients spending >3 hours/week participating in club sports was significantly lower than the proportion of controls, whereas no difference in time spent engaging in physical activity during leisure-time was observed. Participation in compulsory school-educational physical activity was equally high in patients and controls, although participation by patients was significantly less consistent than that by controls. Patient reports of time spent with club sport and leisure-time physical activity was significantly related to accelerometry measures, whereas this was not observed for school-educational physical activity.
The results of this study indicate the need for structured guidance for all patients with JIA (including those with minimal disease activity) in both understanding and coping with the consequences of a low level of physical activity.
幼年特发性关节炎（JIA）可导致功能障碍和体力活动时间减少。本研究旨在调查 JIA 患者参与俱乐部运动、休闲时间体力活动和学校教育体力活动的习惯，并将其与使用加速度计测量的体力活动进行比较，并将研究结果与健康对照组进行比较。
连续纳入来自奥胡斯大学医院门诊的患者。记录患者的临床特征、功能能力以及俱乐部运动、休闲时间体力活动和学校教育体力活动（基于标准化问卷）的特定习惯，并与健康对照组进行比较。使用 ActiGraph GT1M 加速度计监测来测量体力活动的强度和频率。
共纳入 68 例 JIA 患者和 118 例健康对照者。尽管疾病活动度较低，但与健康对照组相比，JIA 患儿的加速度计监测体力活动水平显著较低。患者和对照组的特定俱乐部运动活动分布相同。然而，每周花费>3 小时参与俱乐部运动的患者比例明显低于对照组，而休闲时间的体力活动时间无差异。患者和对照组都需要参加强制性学校教育体力活动，尽管患者的参与度明显不如对照组一致。患者报告的俱乐部运动和休闲时间体力活动时间与加速度计测量值显著相关，但学校教育体力活动则没有。
本研究结果表明，需要为所有 JIA 患者（包括疾病活动度最低的患者）提供结构化的指导，以帮助他们理解和应对体力活动水平低的后果。
