Validity and responsiveness of the Global Physical Activity Questionnaire (GPAQ) in assessing physical activity during pregnancy.
Validity and responsiveness of the Global Physical Activity Questionnaire (GPAQ) in assessing physical activity during pregnancy.
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DOI：
10.1371/journal.pone.0177996
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Dietz P
中科院分区：
文献类型：
--
作者：
Watson ED;Micklesfield LK;van Poppel MNM;Norris SA;Sattler MC;Dietz P
怀孕期间发生的生理和生物力学变化使得准确测量身体活动（PA）成为这一独特时期的挑战。全球体力活动问卷（GPAQ）已在中低收入国家广泛使用，但从未在怀孕人群中得到验证。在这项纵向研究中，95名孕妇（平均年龄：29.5±5.7岁; BMI：26.9±5.0 kg/m2）完成了GPAQ，并被要求在怀孕期间的两个时间点（妊娠14-18周和29-33周）佩戴加速计7天。在测量孕29-33周的中到剧烈体力活动（MVPA）时，加速度计和GPAQ之间存在显著差异（16.6 vs 21.4分钟/天; p = 0.02）以及14-18周时的久坐行为（SB）（457.0 vs 300 min/d; p < 0.01）和29-33周妊娠（431.5 vs 300 min/d; p < 0.01）。在两个时间点，PA和SB的GPAQ和加速度测量之间的一致性较差（ICC：-0.05-0.08）。Bland Altman图表明，GPAQ在妊娠14-18周高估PA 14.8 min/d，在妊娠29-33周高估PA 15.8 min/d。它在14-18周时低估SB 127.5分钟/天，在29-33周时低估SB 89.2分钟/天。与加速度计相比，GPAQ显示出较差的一致性，似乎高估了PA和低估了SB在怀孕期间。
The physiological and biomechanical changes that occur during pregnancy make accurate measurement of physical activity (PA) a challenge during this unique period. The Global Physical Activity Questionnaire (GPAQ) has been used extensively in low-to-middle income countries, but has never been validated in a pregnant population. In this longitudinal study, 95 pregnant women (mean age: 29.5±5.7 years; BMI: 26.9±5.0 kg/m2) completed the GPAQ and were asked to wear an accelerometer for 7 days at two time points during pregnancy (14–18 and 29–33 weeks gestation). There was a significant difference between accelerometry and GPAQ when measuring moderate-to-vigorous physical activity (MVPA) at 29–33 weeks gestation (16.6 vs 21.4 min/day; p = 0.02) as well as sedentary behaviour (SB) at both 14–18 weeks (457.0 vs 300 min/day; p < 0.01) and 29–33 weeks gestation (431.5 vs 300 min/day; p < 0.01). There was poor agreement between the GPAQ and accelerometry for both PA and SB at both time points (ICC: -0.05–0.08). Bland Altman plots indicated that the GPAQ overestimates PA by 14.8 min/day at 14–18 weeks and by 15.8 min/day at 29–33 weeks gestation. It underestimates SB by 127.5 min/day at 14–18 weeks and by 89.2 min/day at 29–33 weeks gestation. When compared to accelerometry, the GPAQ shows poor agreement and appears to overestimate PA and underestimate SB during pregnancy.