Division of Musculoskeletal Physiotherapy, Department of Health Sciences, Artesis University College Antwerp (AHA), Antwerp, Belgium.
Disabil Rehabil. 2011;33(1):9-16. doi: 10.3109/09638288.2010.483307. Epub 2010 May 6.
To evaluate the criterion validity and internal consistency of the International Physical Activity Questionnaire-short form (IPAQ-sf) in Chronic Fatigue Syndrome (CFS) patients.
Fifty-six CFS patients completed the IPAQ-sf after they wore a tri-axial accelerometer and filled out activity diaries during 1 week. Spearman rank correlation coefficients and Cronbach's Alpha were calculated.
The IPAQ-sf correlated significantly with the energy expenditure and Metabolic Equivalents (METs) minutes spent moderately to vigorously active following the activity diary and accelerometer. These correlation coefficients were however low (r varying between 0.282 and 0.426) and rather irrelevant, since CFS patients hardly reach moderate or vigorous activity levels. Internal consistency between the three subitems used for the total score of the IPAQ-sf was 0.337.
The observed associations between the IPAQ-sf data and the data obtained from the accelerometer (gold standard) and the diaries were too low to be in support of the use of the IPAQ-sf in patients with CFS. The IPAQ-sf does not seem an appropriate tool to assess physical activity in CFS patients. Further study is required to seek for a valid, practical and affordable tool.
评估慢性疲劳综合征（CFS）患者中短版国际体力活动问卷（IPAQ-sf）的准则效度和内部一致性。
56 名 CFS 患者在佩戴三轴加速度计并在 1 周内填写活动日记后完成了 IPAQ-sf。计算了 Spearman 等级相关系数和 Cronbach's Alpha。
IPAQ-sf 与活动日记和加速度计记录的中度至剧烈活动的能量消耗和代谢当量（MET）分钟数显著相关。然而，这些相关系数较低（r 值在 0.282 到 0.426 之间），且相关性较低，因为 CFS 患者几乎无法达到中度或剧烈的活动水平。用于 IPAQ-sf 总分的三个亚项之间的内部一致性为 0.337。
IPAQ-sf 数据与加速度计（金标准）和日记中获得的数据之间的观察到的关联太低，无法支持在 CFS 患者中使用 IPAQ-sf。IPAQ-sf 似乎不是评估 CFS 患者体力活动的合适工具。需要进一步研究以寻找一种有效、实用和经济实惠的工具。
