Research and Postgraduate Center, Pitágoras-Unopar University (UNOPAR), Londrina, Paraná, Brazil.
Laboratory of Research in Respiratory Physiotherapy (LFIP), State University of Londrina, Londrina, Paraná, Brazil.
PLoS One. 2023 Feb 24;18(2):e0282137. doi: 10.1371/journal.pone.0282137. eCollection 2023.
The short form of the International Physical Activity Questionnaire (IPAQ) is widely used to assess PA and has already been used in adults with asthma; however, its validity has not been yet studied in this population. Therefore, the aim of this study was to verify the convergent and discriminative validity of the IPAQ short form in adults with asthma.
Fifty-three adults with asthma (36 females; 48±15 years; 29±6 kg/m²) wore the triaxial activity monitor Actigraph for eight days to objectively measure steps/day, time in light physical activity (PA), moderate-to-vigorous PA (MVPA), and sedentary behaviour. Participants filled out the IPAQ matching with the same week they wore the Actigraph, with measures of: time of MVPA and total PA/week; categorization of low, moderate or high PA level; time in seated position.
IPAQ self-reported total time of PA/week was weakly correlated with steps/day. The IPAQ categorization correlated moderately with time in light, MVPA and steps/day. Self-reported time in seated position on weekdays was moderately correlated with objective percentage/day of time in sedentary behaviour in the same period. IPAQ categorization in PA levels was able to differentiate between low to moderate and low to high PA levels.
These results cannot confidently infer the convergent validity of the IPAQ to quantify number of steps/day and time spent in PA of adults with asthma. However, this instrument may be useful to categorize patients into three levels of PA.
国际体力活动问卷（IPAQ）的短式版本被广泛用于评估体力活动，并且已经在哮喘患者中使用；然而，其在该人群中的有效性尚未得到研究。因此，本研究旨在验证哮喘患者中 IPAQ 短式版本的聚合效度和判别效度。
53 名哮喘成年人（36 名女性；48±15 岁；29±6 kg/m²）佩戴三轴活动监测器 Actigraph 八天，以客观测量每天的步数、轻体力活动（PA）时间、中等到剧烈体力活动（MVPA）时间和久坐行为时间。参与者在佩戴 Actigraph 的同一周填写 IPAQ 问卷，测量：MVPA 和总 PA/周的时间；低、中或高 PA 水平的分类；坐姿时间。
IPAQ 自我报告的总 PA/周时间与每天的步数弱相关。IPAQ 分类与轻体力活动、MVPA 和每天的步数中度相关。工作日的自我报告坐姿时间与同期客观的久坐行为时间百分比中度相关。PA 水平的 IPAQ 分类能够区分低到中水平和低到高水平的 PA。
这些结果不能自信地推断 IPAQ 对量化哮喘成年人的每日步数和 PA 时间的聚合效度。然而，该工具可能有助于将患者分为三个 PA 水平。
