Department of Pediatrics and Pediatric Neurology, Cystic Fibrosis Center, Sapienza University of Rome, Viale Regina Elena, 324, Rome 00185, Italy.
Respir Med. 2013 Dec;107(12):1888-94. doi: 10.1016/j.rmed.2013.09.012. Epub 2013 Sep 22.
The aim of the present study was to determine whether different methods of recording physical activity (PA), i.e., accelerometers vs questionnaires, provided similar information in adults with cystic fibrosis (CF).
20 CF (age 33 ± 8SD yrs, FEV1 68 ± 16% predicted) and 11 age-matched healthy controls completed the Habitual Activity Estimation Scale (HAES) questionnaire and wore a biaxial accelerometer (SenseWear Pro3 Armband). Exercise tolerance was measured in CF.
Patients had similar values in PA compared with controls. None of PA categories estimated by HAES questionnaire correlated with PA categories measured by the accelerometer; in CF the HAES questionnaire overestimated the effective levels of PA measured by the accelerometer. There were no differences between weekdays and weekend days PA levels provided by the accelerometer. In CF the questionnaire detected different time reported during the "somewhat inactive" and "somewhat active" categories (z = 2.651; p = 0.008; z = -2.651; p = 0.008), weekdays vs weekend; patients reported more time spent in activity (somewhat active & very active) during the weekend (z = -2.203; p = 0.02). Peak oxygen uptake correlated with accelerometer activities of "moderate" (>4.8 metabolic equivalents (METS)) and "vigorous" (>7.2 METS) intensity (r = 0.503, p = 0.02; r = 0.545, p = 0.01).
In adults with cystic fibrosis PA levels are better evaluated by the accelerometer and are similar to the controls. PA measured by the accelerometer is similar during the week and correlates with exercise tolerance.
本研究旨在确定在囊性纤维化（CF）成人中，使用不同的活动记录方法（即加速度计与问卷）是否能提供相似的信息。
20 名 CF（年龄 33 ± 8SD 岁，FEV1 68 ± 16%预测值）和 11 名年龄匹配的健康对照者完成了习惯性活动估计量表（HAES）问卷，并佩戴了双轴加速度计（SenseWear Pro3 臂带）。在 CF 中测量了运动耐量。
患者的 PA 值与对照组相似。HAES 问卷估计的任何 PA 类别均与加速度计测量的 PA 类别无关；在 CF 中，HAES 问卷高估了加速度计测量的有效 PA 水平。加速度计提供的工作日和周末 PA 水平之间没有差异。在 CF 中，问卷在“轻度活动”和“中度活动”类别中检测到不同的报告时间（z = 2.651；p = 0.008；z = -2.651；p = 0.008），工作日与周末；患者报告周末活动（轻度活动和中度活动）时间更多（z = -2.203；p = 0.02）。峰值摄氧量与加速度计“中度”（>4.8 代谢当量（METs））和“剧烈”（>7.2 METs）强度的活动呈正相关（r = 0.503，p = 0.02；r = 0.545，p = 0.01）。
在囊性纤维化成人中，PA 水平通过加速度计评估更好，与对照组相似。加速度计测量的 PA 在一周内相似，并与运动耐量相关。
