Evidence map›Paper›PMID 39773786›Full record

ArticleBMJ open2025

Enhancing physical activity during pregnancy using a multi-theory model: a study protocol for a randomised controlled trial in China.

Ying Jin, Wei Zhang, Le Zhang, Xuesong Zhang, Yu Shen, Ningning Liu, Suwen Feng

Abstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Ying Jin *Women's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Wei Zhang *Women's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Le Zhang *Women's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Xuesong ZhangWomen's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Yu ShenWomen's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Ningning LiuWomen's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China.
Suwen FengWomen's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China fengsw@zju.edu.cn.ORCID http://orcid.org/0000-0002-0883-0418

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPhysical inactivity is a global concern and poses serious health risks. Physical inactivity is exacerbated and affects the health of both generations during the special period of pregnancy. Appropriate physical activity (PA) intervention programmes based on health behaviour change theory are lacking. This study aims to evaluate the effectiveness of a PA intervention based on the multi-theory model (MTM) by assessing changes in PA levels, MTM constructs, exercise self-efficacy, quality of life, prenatal depressive symptoms, gestational weight gain and pregnancy and delivery outcomes. METHODS AND ANALYSIS: This single-centre, parallel, randomised, controlled trial will be conducted at a tertiary care institution in Hangzhou, China. A total of 72 pregnant women without contraindications to exercise at 14-27 weeks+6 days of gestation will be included. Participants will be randomly assigned to either the intervention or control group. The intervention group will engage in a 12 week PA intervention programme based on the MTM and delivered through WeChat, while the control group will receive standard antenatal care. Data will be collected at baseline, 6 weeks of the intervention, 12 weeks of the intervention and within 1 week of delivery. The primary outcomes will include PA levels measured by accelerometers and the PA in Pregnancy Questionnaire, along with the constructs of the MTM. Secondary outcomes will comprise exercise self-efficacy during pregnancy, quality of life, prenatal depressive symptoms, gestation weight gain and pregnancy and delivery outcomes. Data analysis will adhere to the Consolidated Standards of Reporting Trials 2010 statement and follow the intention-to-treat principle. ETHICS AND DISSEMINATION: The study followed the ethical guidelines approved by the ethics committee of Women's Hospital School of Medicine Zhejiang University (IRB-20230254-R, Approval Date: 27 July 2023). The results of the study will be submitted for publication and dissemination in a peer-reviewed journal. Participants will receive clarification regarding the study objectives, procedures and will be asked to sign informed consent in written form before the start of the study. TRIAL REGISTRATION NUMBER: ChiCTR2400080843. Prospectively registered on 8 February 2024.

Indexed as

ExerciseQuality of LifeRandomized Controlled Trials as TopicSelf EfficacyAdultChinaDepressionFemaleGestational Weight GainHealth BehaviorHumansPregnancyPrenatal CarePregnant WomenPUBLIC HEALTHSPORTS MEDICINE

Identifiers

PMID39773786
PMCPMC11749529

What Socratic holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.