The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model

Abstract Background Previous studies have shown that higher levels of physical activity (PA) are generally associated with a lower risk of developing gestational diabetes mellitus (GDM). however, evidence regarding the dose-response relationship remains limited. This study aims to investigate the do...

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Main Authors: Liuwei Zhang, Liping Zuo, Shengjun Sun, Yijia Ren, Yi Gao, Xiaoyan Zhang, Lichao Sun
Format: Article
Language:English
Published: BMC 2025-08-01
Series:BMC Pregnancy and Childbirth
Subjects:
Online Access:https://doi.org/10.1186/s12884-025-07947-9
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author Liuwei Zhang
Liping Zuo
Shengjun Sun
Yijia Ren
Yi Gao
Xiaoyan Zhang
Lichao Sun
author_facet Liuwei Zhang
Liping Zuo
Shengjun Sun
Yijia Ren
Yi Gao
Xiaoyan Zhang
Lichao Sun
author_sort Liuwei Zhang
collection DOAJ
description Abstract Background Previous studies have shown that higher levels of physical activity (PA) are generally associated with a lower risk of developing gestational diabetes mellitus (GDM). however, evidence regarding the dose-response relationship remains limited. This study aims to investigate the dose-response relationship between PA and GDM during the second trimester of pregnancy. Methods A hospital-based cross-sectional study was conducted at Beijing Changping Hospital of Integrated Chinese and Western Medicine from August 2018 to October 2019. A total of 476 pregnant women, between 14 and 22 weeks of gestation, were enrolled in the study. Participants were categorized into a GDM group (n = 84) and a non-GDM group (n = 392) based on the results of a 75-g oral glucose tolerance test (OGTT) performed at 24–28 weeks of pregnancy. General information, PA, and dietary data were collected through validated questionnaires. PA levels and daily dietary energy intake (DDEI) were calculated using standard methods. Statistical analyses were performed using SAS 9.4 and R 4.2.1 software. The dose-response analysis was conducted, and optimal cut-off values of PA for the prevention of GDM were determined using the restricted cubic spline (RCS) model. Additionally, univariate and multivariate logistic regression analyses were employed to validate the identified cut-off values. Results (1) Compared to the non-GDM group, levels of total PA, moderate-to-vigorous intensity physical activity (MVPA), and walking PA were significantly lower (p < 0.05). (2) Non-linear dose-response relationships were identified between total PA, MVPA, and walking PA and the risk of GDM (p < 0.001), with optimal cut-off values established at 1714 MET-min/w, 638 MET-min/w, and 1098 MET-min/w, respectively. (3) Logistic regression analysis indicated that the risk of GDM significantly decreased as PA levels surpassed the established cut-off values (p < 0.001). Conclusions A non-linear dose-response relationship exists between PA and GDM during the second trimester of pregnancy. The risk of GDM diminishes as PA levels increase, suggesting that effective prevention of GDM may require achieving adequate levels of PA.
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spelling doaj-art-6f1cc9df488249199d7b673b4286e37c2025-08-20T03:46:12ZengBMCBMC Pregnancy and Childbirth1471-23932025-08-0125111010.1186/s12884-025-07947-9The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline modelLiuwei Zhang0Liping Zuo1Shengjun Sun2Yijia Ren3Yi Gao4Xiaoyan Zhang5Lichao Sun6Key Laboratory of Exercise and Physical Fitness (Beijing Sport University), Ministry of EducationDepartment of Obstetrics and Gynecology, Beijing Changping Hospital of Integrated Chinese and Western MedicineDepartment of Endocrinology, Beijing Changping Hospital of Integrated Chinese and Western MedicineDepartment of Physical Fitness and Health, School of Sport Science, Beijing Sport UniversitySchool of Strength and Conditioning Training, Beijing Sport UniversityDepartment of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship HospitalEmergency Department, China-Japan Friendship Hospital of the Health CommissionAbstract Background Previous studies have shown that higher levels of physical activity (PA) are generally associated with a lower risk of developing gestational diabetes mellitus (GDM). however, evidence regarding the dose-response relationship remains limited. This study aims to investigate the dose-response relationship between PA and GDM during the second trimester of pregnancy. Methods A hospital-based cross-sectional study was conducted at Beijing Changping Hospital of Integrated Chinese and Western Medicine from August 2018 to October 2019. A total of 476 pregnant women, between 14 and 22 weeks of gestation, were enrolled in the study. Participants were categorized into a GDM group (n = 84) and a non-GDM group (n = 392) based on the results of a 75-g oral glucose tolerance test (OGTT) performed at 24–28 weeks of pregnancy. General information, PA, and dietary data were collected through validated questionnaires. PA levels and daily dietary energy intake (DDEI) were calculated using standard methods. Statistical analyses were performed using SAS 9.4 and R 4.2.1 software. The dose-response analysis was conducted, and optimal cut-off values of PA for the prevention of GDM were determined using the restricted cubic spline (RCS) model. Additionally, univariate and multivariate logistic regression analyses were employed to validate the identified cut-off values. Results (1) Compared to the non-GDM group, levels of total PA, moderate-to-vigorous intensity physical activity (MVPA), and walking PA were significantly lower (p < 0.05). (2) Non-linear dose-response relationships were identified between total PA, MVPA, and walking PA and the risk of GDM (p < 0.001), with optimal cut-off values established at 1714 MET-min/w, 638 MET-min/w, and 1098 MET-min/w, respectively. (3) Logistic regression analysis indicated that the risk of GDM significantly decreased as PA levels surpassed the established cut-off values (p < 0.001). Conclusions A non-linear dose-response relationship exists between PA and GDM during the second trimester of pregnancy. The risk of GDM diminishes as PA levels increase, suggesting that effective prevention of GDM may require achieving adequate levels of PA.https://doi.org/10.1186/s12884-025-07947-9Physical activityGestational diabetes mellitusDose-response relationshipSecond trimester of pregnancy
spellingShingle Liuwei Zhang
Liping Zuo
Shengjun Sun
Yijia Ren
Yi Gao
Xiaoyan Zhang
Lichao Sun
The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
BMC Pregnancy and Childbirth
Physical activity
Gestational diabetes mellitus
Dose-response relationship
Second trimester of pregnancy
title The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
title_full The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
title_fullStr The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
title_full_unstemmed The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
title_short The study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy: a dose-response analysis with the restricted cubic spline model
title_sort study of the relationship between physical activity and gestational diabetes mellitus in the second trimester of pregnancy a dose response analysis with the restricted cubic spline model
topic Physical activity
Gestational diabetes mellitus
Dose-response relationship
Second trimester of pregnancy
url https://doi.org/10.1186/s12884-025-07947-9
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