Tan Liwei, Zou Jiaojiao, Zhang Yunhui, Yang Qing, Shi Huijing
Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai, People's Republic of China.
Department of Environmental Health, School of Public Health, Fudan University, Shanghai, People's Republic of China.
Nat Sci Sleep. 2020 Jul 13;12:431-442. doi: 10.2147/NSS.S253213. eCollection 2020.
To explore the association between maternal physical activity (PA) and sleep quality during pregnancy, and the necessary PA level at different gestational stages to attain improved sleep quality.
A total of 2443 participants were recruited from the Shanghai Maternal-Child Pairs Cohort (Shanghai MCPC) study, who had completed questionnaires including the Pittsburgh Sleep Quality Index (PSQI) and the International Physical Activity Questionnaire (IPAQ) at gestational weeks (GW) of 12-16 and 32-36. PSQI scores and their seven components at the two GW were compared, as were PSQI scores at 12-16 and 32-36 GW and the increment in PSQI relative to PA. Regression analysis was conducted to assess the effect of PA and its change on the total PSQI score at different GW.
The mean PSQI scores increased significantly during pregnancy, from 6.30 ± 3.01 at 12-16 GW to 7.23 ± 3.47 at 32-36 GW. Compared with women in low PA level, moderate levels of PA at both 12-16 GW and 32-36 GW were significantly reduced PSQI scores of 0.42 (95% CI:-0.68,-0.16) and 0.32 (95% CI:-0.63,-0.01), respectively. At 32-36 GW, high PA level also significantly decreased PSQI score, with a greater decline than moderate PA level. (AOR=-0.87,95% CI:-1.57,-0.18). PA increment from 12-16 to 32-36 weeks of pregnancy created a significant decline of 0.54 in PSQI scores.
The study revealed sleep quality was worse at the third trimester and moderate PA level had the potential for improvement of sleep quality both in the first and the third trimester. High PA level was also beneficial to improve sleep quality of pregnant women in the third trimester.
探讨孕期母亲身体活动（PA）与睡眠质量之间的关联，以及不同孕周达到改善睡眠质量所需的PA水平。
从上海母婴队列（Shanghai MCPC）研究中招募了2443名参与者，他们在孕12 - 16周和32 - 36周完成了包括匹兹堡睡眠质量指数（PSQI）和国际身体活动问卷（IPAQ）在内的问卷调查。比较了两个孕周的PSQI得分及其七个组成部分，以及孕12 - 16周和32 - 36周的PSQI得分和PSQI相对于PA的增量。进行回归分析以评估PA及其变化对不同孕周总PSQI得分的影响。
孕期PSQI平均得分显著增加，从孕12 - 16周的6.30±3.01增加到孕32 - 36周的7.23±3.47。与低PA水平的女性相比，孕12 - 16周和32 - 36周的中等PA水平分别使PSQI得分显著降低0.42（95%CI：-0.68，-0.16）和0.32（95%CI：-0.63，-0.01）。在孕32 - 36周，高PA水平也显著降低了PSQI得分，下降幅度大于中等PA水平（调整后比值比=-0.87，95%CI：-1.57，-0.18）。从孕12 - 16周到32 - 36周PA的增加使PSQI得分显著下降0.54。
该研究表明，孕晚期睡眠质量较差，中等PA水平在孕早期和孕晚期均有可能改善睡眠质量。高PA水平也有利于改善孕晚期孕妇的睡眠质量。
