Revisiting the International Physical Activity Questionnaire (IPAQ): Assessing physical activity among individuals with schizophrenia
Revisiting the International Physical Activity Questionnaire (IPAQ): Assessing physical activity among individuals with schizophrenia
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DOI：
10.1016/j.schres.2016.09.010
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发表时间：
2017-01-01
影响因子：
4.5
通讯作者：
Faulkner, Guy
中科院分区：
文献类型：
--
作者：
Duncan, Markus J.;Arbour-Nicitopoulos, Kelly;Faulkner, Guy
背景：精神分裂症患者个体的体力活动(PA)水平往往较低，这导致身体合并症的发生率较高。有效和可靠的PA评估方法对于推进卫生研究是必不可少的。在对短式国际体力活动问卷(IPAQ)进行初步验证十年后，这项研究扩展了最初的效度研究，检查了4周的重测信度，用更大的样本评估了效度，并将iPAQ的有效性与24小时回忆替代方案进行了比较。方法：参与者在基线和4周后完成IPAQat，并在第4周进行24小时PA召回。在第3周，参与者佩戴腰部加速计7天。结果：自测iPAQ的重测信度为Rho=0.47p<；0.001。IPAQ评估与加速度计测定的平均动脉压之间的相关性为.=0.3，p=0.003。24小时召回与前一天的MVPA显著相关。=0.27，p=0.012。Bland-Altman图显示iPAQ-SF与加速法相比平均漏报了-119.2分钟(-72%)(95%的一致性限-1017.1至778.7分钟，-292%至147%)。结论：与该人群以前的iPAQ验证工作相比，标准效度相似，但在4周内可靠性较低。24小时回忆的MVPA标准效度与7日自我报告iPAQ相当。调查结果进一步支持IPAQ是流行病学研究的合适评估工具。建议采用客观体力活动指标进行干预评价。(C)2016爱思唯尔B.V.保留所有权利。
Background: Individualswith schizophrenia tend to have lowlevels of physical activity (PA) which contributes to high rates of physical comorbidities. Valid and reliable methods of assessing PA are essential for advancing health research. Ten years after initial validation of the Short-Form International Physical Activity Questionnaire (IPAQ), this study expands on the initial validation study by examining retest reliability over a 4-week period, assessing validity with a larger sample, and comparing validity of the IPAQ to a 24-hour recall alternative.Methods: Participants completed the IPAQat baseline and 4weeks later, along with a 24-hour PA recall atweek 4. At week 3 participants wore waist accelerometers for 7 days. Spearman's correlation coefficients and Bland-Altman plots were calculated based on weekly minutes of moderate to vigorous PA (MVPA).Results: Test-retest reliability for the self-administered IPAQ was rho= 0.47, p < 0.001 for MVPA. Correlation between IPAQ assessment and accelerometer-determined MVPA was.= 0.30, p= 0.003. The 24-hour recall correlated significantly with MVPA on the previous day. = 0.27, p = 0.012. A Bland-Altman plot indicated the IPAQ-SF underreported by -119.2 min (-72%) on average compared to accelerometry (95% limits of agreement -1017.1 to 778.7 min, -292% to 147%).Conclusion: Compared to previous IPAQ validation work in this population, criterion validity was similar, but reliability was lower over a 4-week period. MVPA criterion validity of the 24-hour recall was comparable to the 7day self-report IPAQ. Findings further support that the IPAQ is a suitable assessment tool for epidemiological studies. Objective measures of physical activity are recommended for intervention assessment. (C) 2016 Elsevier B.V. All rights reserved.