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The purpose of this clinical trial is to investigate which exercise regimen is more effective in improving non-alcoholic fatty liver disease (NAFLD) in a young population. The primary questions it aims to answer are:
Does aerobic training, resistance training, or a combination of both help improve liver function and glycemic and lipid parameters in NAFLD patients? Which of these three exercise regimens is more effective in improving the aforementioned parameters? Is the improvement in liver function related to bile acid metabolism?
Participants will:
Engage in physical exercise 4-5 times per week for two consecutive months, following a predefined exercise regimen.
Have blood samples collected to test for glucose, lipids, liver function, and other parameters before starting the exercise program and after two months of completing the regimen.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Aerobic training (AT) | Active Comparator | Aerobic exercise can include activities like swimming, running, or cycling. Scientifically, aerobic exercise is defined as any activity that uses large muscle groups, can be maintained continuously, and is rhythmic in nature. It improves the efficiency of the cardiovascular, respiratory, and circulatory systems by delivering oxygen more efficiently to the body. According to reports, aerobic exercise can help reduce fat and improve liver function. |
|
| Resistance training (RT) | Active Comparator | Resistance exercise is a form of physical activity that is designed to improve muscular fitness by exercising a muscle or a muscle group against external resistance. This includes traditional weightlifting, using weight machines, resistance band exercises, bodyweight exercises, and other activities designed to build muscle strength, endurance, and size. The key principle is the muscle's ability to contract against resistance: using weights, resistance bands, or one's own body weight, the muscle is challenged, leading to muscular adaptation and growth, enhancing strength and endurance. According to reports, resistance exercise can also help improve liver function. |
|
| Combined aerobic and resistance training (AT + RT) | Active Comparator | The combination of aerobic exercise and resistance exercise. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Aerobic training (AT) | Behavioral | An exercise program was developed by a full-time physical education teacher, with all group exercises conducted at the outdoor track and field facility of Xuzhou Medical University. Participants in the aerobic training group, after completing a warm-up, were required to perform moderate-intensity aerobic running for 60 minutes per session, 4-5 times a week. The exercise intensity was set to reach 50%-70% of the maximum heart rate (Maximum heart rate = 220 - age). The exercise sessions were scheduled in the evening after dinner, from 17:30 to 19:00.All participants were continuously intervened for 8 weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in body weight compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in Body Mass Index compared to baseline at 8 weeks | BMI | Baseline and 8 weeks |
| Changes in total cholesterol compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in triglycerides compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in high-density lipoprotein compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in low-density lipoprotein compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in alanine aminotransferase compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in aspartate aminotransferase compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in alkaline phosphatase compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in gamma-glutamyl transferase compared to baseline at 8 weeks | Baseline and 8 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in percentage of body fat compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Changes in waist-to-hip ratio compared to baseline at 8 weeks | Baseline and 8 weeks | |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in other subtypes of bile acids compared to baseline at 8 weeks | Baseline and 8 weeks |
Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Outdoor track and field facility of Xuzhou Medical University | Xuzhou | Jiangsu | 221000 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40211236 | Derived | Shi J, Cui J, Zheng T, Han X, Wang B, Wang W, Zhu C, Fang C, Zhou X, Cong N, Yin X, Yang Q. Comparative effects of aerobic and resistance exercise on bile acid profiles and liver function in patients with non-alcoholic fatty liver disease. BMC Gastroenterol. 2025 Apr 10;25(1):239. doi: 10.1186/s12876-025-03826-x. |
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The experimental data involves personal privacy and will only be publicly shared when necessary.
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The specific exercise plan and grouping are as follows:
Participants were randomly (Using an electronic random number generator) divided into four groups: control group (Control), aerobic training group (AT), resistance training group (RT), and combined aerobic and resistance training group (AT + RT), with each group consisting of 10 individuals, totaling 40 participants. All participants were young adults aged between 18 and 21 years old.
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After the data is obtained, the person analyzing the data will not know the specific grouping and participant information. The groups will be replaced by Group A, B, C, D, and the participants will be indicated by their IDs.
|
| Resistance training (RT) | Behavioral | Participants in the resistance training group were required to complete moderate-intensity resistance exercises 4-5 times per week. Each session included a warm-up, followed by exercises such as knee lifts with torso twists, knee-to-hand taps under the hips, jumping jacks, burpees, sit-ups, planks, and squats. The routine was structured to perform 5-6 exercises per session, with 6-8 repetitions for each set. There was a 30-second rest interval between sets, and the total exercise time was 60 minutes. The timing for these exercise sessions was the same as for the AT group, conducted in the evening after dinner.All participants were continuously intervened for 8 weeks. |
|
| Combined aerobic and resistance training (AT + RT) | Behavioral | Participants in the combined aerobic and resistance training (AT+RT) group started their sessions with a warm-up, followed by 30 minutes of aerobic running. After the aerobic training, they engaged in resistance training. The resistance training regimen was the same as that for the RT group, except that the duration of the resistance training was shorter. The total duration of the exercise session was 60 minutes.All participants were continuously intervened for 8 weeks. |
|
| Changes in direct bilirubin compared to baseline at 8 weeks | Baseline and 8 weeks |
| Changes in total bile acids compared to baseline at 8 weeks | Baseline and 8 weeks |
| Changes in adenosine deaminase compared to baseline at 8 weeks | Baseline and 8 weeks |
| Changes in blood glucose compared to baseline at 8 weeks |
| Baseline and 8 weeks |
| Changes in the level of insulin compared to baseline at 8 weeks | Baseline and 8 weeks |
| Changes in albumin compared to baseline at 8 weeks | Baseline and 8 weeks |
| Changes in C-reactive protein compared to baseline at 8 weeks | Baseline and 8 weeks |
| ID | Term |
|---|---|
| D065626 | Non-alcoholic Fatty Liver Disease |
| ID | Term |
|---|---|
| D005234 | Fatty Liver |
| D008107 | Liver Diseases |
| D004066 | Digestive System Diseases |
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| ID | Term |
|---|---|
| D055070 | Resistance Training |
| ID | Term |
|---|---|
| D005081 | Exercise Therapy |
| D012046 | Rehabilitation |
| D000359 | Aftercare |
| D003266 | Continuity of Patient Care |
| D005791 | Patient Care |
| D013812 | Therapeutics |
| D026741 | Physical Therapy Modalities |
| D064797 | Physical Conditioning, Human |
| D015444 | Exercise |
| D009043 | Motor Activity |
| D009068 | Movement |
| D009142 | Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |
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