Management strategies for Chinese women with gestational diabetes
| ISRCTN | ISRCTN40260907 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN40260907 |
| ClinicalTrials.gov (NCT) | Nil known |
| Clinical Trials Information System (CTIS) | Nil known |
| Protocol serial number | Nil known |
| Sponsor | Guangxi Natural Science Foundation |
| Funders | Natural Science Foundation of Guangxi Province, Guangxi Medical and Health Appropriate Technology Development and Application Project |
- Submission date
- 13/06/2024
- Registration date
- 17/06/2024
- Last edited
- 06/12/2024
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Pregnancy and Childbirth
Plain English summary of protocol
Background and study aims
This study aims to examine the effects of three modes of exercise interventions on blood sugar and pregnancy outcomes and explore the most effective exercise patterns for women with gestational diabetes mellitus (GDM). Gestational diabetes is high blood sugar that develops during pregnancy and usually disappears after giving birth.
Who can participate?
Chinese pregnant women with GDM at 24–28 weeks of gestation
What does the study involve?
The study lasted for a total of 24 weeks, including initial assessments, the exercise intervention period, and follow-up assessments.
The participants were assigned into four groups:
1. The aerobic exercise group took an exercise intervention of moderate-intensity walking at a speed of 3–6 km/h or 100–200 steps/min. Exercise was recommended every other day, 3–4 times per week. Participants were advised to start exercising 1 hour after a meal and continue for 40 minutes, with a family member to ensure safety, provide motivation, and increase adherence to the exercise routine
2. The resistance training group received an exercise intervention involving seated bicep curls with a 1-kg dumbbell. This was also performed once every other day, 3 to 4 times per week, 1 hour after a meal. The exercise duration was 40 minutes. The specific movements included elbow flexion, double arm abduction (timed for 30 seconds), swinging arms back and forth, chest expansion exercises, and raising both arms overhead. Each movement was repeated 10 times, with five movements making up one set. A total of three sets were performed, with a 15-second rest period between each movement and a 1-minute rest period between each set.
3. The aerobic exercise combined with resistance training group undertook a 20-minute moderate-intensity walk followed by seated bicep curls with a 1-kg dumbbell. This routine was performed once every other day, 3 to 4 times per week, with the exercise session taking place 1 hour after a meal. The walking duration was 40 minutes, and the resistance exercises consisted of five repetitions for each of the five different exercises, totaling three sets. A 15-second rest period was given between each exercise and a 1-minute rest period between each set.
4. The control group received only routine prenatal care, personalized diabetes diet guidance, and online education guidance on weight control, blood glucose monitoring, and using a food diary.
What are the possible benefits and risks of participating?
Possible benefits include improvement in blood sugar control, enhanced overall physical fitness, and reduction in the risk of complications associated with GDM. As with any physical activity, there is a small risk of injury. However, the exercise program is designed to be safe and appropriate for pregnant women.
Where is the study run from?
The Second Affiliated Hospital of Guangxi Medical University (China)
When is the study starting and how long is it expected to run for?
August 2019 to March 2021
Who is funding the study?
1. Joint Project on Regional High-Incidence Diseases Research of Guangxi Natural Science Foundation (#2023GXNSFAA026241) (China)
2. Guangxi Medical and Health Appropriate Technology Development and Application Project (#S2022095) (China)
3. Guangxi Medical and Health Appropriate Technology Development and Application Project (#S2019101) (China)
Who is the main contact?
Ms Qiuhong Huang, ssqy13977197819@163.com
Contact information
Principal investigator
166 East Daxue Road
Nanning
530000
China
| Phone | +86 (0)18818808760 |
|---|---|
| chloezengyc@qq.com |
Scientific
No 50 Huzhou Street
Gongshu District
Hangzhou City University
Hangzhou
310015
China
| Phone | +86 (0)18818808760 |
|---|---|
| zengyc@hzcu.edu.cn |
Public
No 50 Huzhou Street
Gongshu District
Hangzhou City University
Hangzhou
310015
China
| Phone | +86 (0)18818808760 |
|---|---|
| chloezengyc@hotmail.co.uk |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Non-randomized study |
| Secondary study design | Non randomised study |
| Study type | Participant information sheet |
| Scientific title | Effect of three modes of exercise intervention on glycemic control and pregnancy outcomes among Chinese women with gestational diabetes mellitus |
| Study objectives | Aerobic exercise in combination with resistance training has better effects in reducing FBG, 2h-PBG, HbA1c levels and postpartum bleeding compared to the aerobic exercise, resistance training, and no exercise groups. |
| Ethics approval(s) |
Approved 01/08/2019, The Second Affiliated Hospital of Guangxi Medical University (166 East Daxue Road, Nanning, 530000, China; +86 (0)771 5356557; gxydkyb@163.com), ref: 2020-KY-E-117 |
| Health condition(s) or problem(s) studied | Gestational diabetes mellitus |
| Intervention | The participants were assigned into four groups based on their willingness: 1. The aerobic exercise group took an exercise intervention of moderate-intensity walking at a speed of 3–6 km/h or 100–200 steps/min. Exercise was recommended every other day, 3–4 times per week. Participants were advised to start exercising 1 hour after a meal and continue for 40 minutes, with a family member to ensure safety, provide motivation, and increase adherence to the exercise routine 2. The resistance training group received an exercise intervention involving seated bicep curls with a 1-kg dumbbell. This was also performed once every other day, 3 to 4 times per week, 1 hour after a meal. The exercise duration was 40 minutes. The specific movements included elbow flexion, double arm abduction (timed for 30 seconds), swinging arms back and forth, chest expansion exercises, and raising both arms overhead. Each movement was repeated 10 times, with five movements making up one set. A total of three sets were performed, with a 15-second rest period between each movement and a 1-minute rest period between each set. 3. The aerobic exercise combined with resistance training group undertook a 20-minute moderate-intensity walk followed by seated bicep curls with a 1-kg dumbbell. This routine was performed once every other day, 3 to 4 times per week, with the exercise session taking place 1 hour after a meal. The walking duration was 40 minutes, and the resistance exercises consisted of five repetitions for each of the five different exercises, totaling three sets. A 15-second rest period was given between each exercise and a 1-minute rest period between each set. 4. The control group received only routine prenatal care, personalized diabetes diet guidance, and online education guidance on weight control, blood glucose monitoring, and using a food diary. |
| Intervention type | Behavioural |
| Primary outcome measure(s) |
1. Fasting blood glucose (FBG) measured using glucose oxidase method |
| Key secondary outcome measure(s) |
1. Maternal pregnancy outcomes: gestational age, preterm birth, mode of delivery, gestational hypertension syndrome, insulin use, late pregnancy weight gain, postpartum hemorrhage measured using patients’ medical records |
| Completion date | 15/03/2021 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Lower age limit | 20 Years |
| Upper age limit | 50 Years |
| Sex | Female |
| Target sample size at registration | 200 |
| Total final enrolment | 184 |
| Key inclusion criteria | 1. Pregnant women with GDM at 24–28 weeks of gestation. A diagnosis of GDM is made using the one-step approach of a 75-g oral glucose tolerance test if the plasma glucose value is abnormal (i.e., fasting blood glucose ≥5.1 mmol/L, 1 hour ≥10.0 mmol/L, 2 hours ≥8.5 mmol/L) 2. Single pregnancy 3. Body mass index (BMI) <40 kg/m2 4. Muscle strength at level IV or above |
| Key exclusion criteria | 1. Severe obstetric complications and contraindications listed in the public health guidelines for physical activity during pregnancy 2. Severe heart, liver, lung, or kidney damage 3. Acute or chronic complications caused by diabetes, such as ketoacidosis or diabetic foot |
| Date of first enrolment | 25/09/2020 |
| Date of final enrolment | 30/12/2020 |
Locations
Countries of recruitment
- China
Study participating centre
Nanning
530000
China
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Available on request |
| IPD sharing plan | The datasets generated during the current study will be available upon request from Dr Yingchun Zeng (chloezengyc@qq.com) |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | 19/09/2024 | 06/12/2024 | Yes | No | |
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
06/12/2024: Publication reference added.
17/06/2024: Study's existence confirmed by the Second Affiliated Hospital of Guangxi Medical University.
