80 Participants Needed

Exercise Training for Vascular Dysfunction in Obesity

AM
Overseen ByAbeer Mohamed, MD, PhD
Age: 18 - 65
Sex: Any
Trial Phase: Academic
Sponsor: University of Illinois at Chicago
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

The main objective is to examine DNA hypomethylation as an underlying mechanism for the increased production of inflammatory cytokines and the impaired vascular function in obese individuals and as a potential target for nonpharmacological preventive/therapeutic interventions such as aerobic exercise.

Do I need to stop my current medications for this trial?

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Is exercise training safe for people with obesity?

Exercise training, including aerobic and resistance exercises, is generally considered safe for people with obesity. It is known to improve cardiovascular health and physical function, and there is no evidence suggesting significant safety concerns when performed appropriately.12345

How does exercise training differ from other treatments for vascular dysfunction in obesity?

Exercise training is unique because it directly improves vascular health by enhancing endothelial function (the inner lining of blood vessels) and restoring the function of perivascular adipose tissue (fat around blood vessels), which is often impaired in obesity. Unlike medications, exercise promotes the release of beneficial hormones and improves blood flow, offering a natural and holistic approach to managing vascular dysfunction.25678

What data supports the effectiveness of the treatment Exercise training for vascular dysfunction in obesity?

Research shows that exercise training can improve cardiovascular function and cardiorespiratory fitness, which are important for overall health, especially after bariatric surgery. Additionally, aerobic exercise training has been found to improve endothelial function (the health of blood vessels) in individuals with overweight and obesity.126910

Who Is on the Research Team?

AM

Abeer M Mohamed, MD, PhD

Principal Investigator

University of Illinois at Chicago

Are You a Good Fit for This Trial?

This trial is for adults aged 18-50 with severe obesity (BMI ≥ 35 kg/m2) who are approved for bariatric surgery but not currently pregnant. It excludes those with cancer, heart, kidney or liver diseases, gallbladder disease, inflammatory/autoimmune conditions, smokers, and substance abusers.

Inclusion Criteria

I am approved for weight loss surgery.
BMI ≥ 35 kg/m2
Not pregnant

Exclusion Criteria

I have a current diagnosis of cancer, heart, kidney, liver, gallbladder disease, or an inflammatory/autoimmune condition.
Pregnant women
Current smokers
See 1 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants undergo 12 weeks of aerobic exercise training

12 weeks
Regular visits for exercise sessions

Follow-up

Participants are monitored for changes in DNA methylation and vascular function

6 months

Weight Loss Surgery

Participants undergo bariatric surgery to assess its impact on DNA methylation and vascular function

Surgery and recovery period

What Are the Treatments Tested in This Trial?

Interventions

  • Exercise training
Trial Overview The study investigates if aerobic exercise can improve blood vessel function and reduce inflammation in obese individuals by altering DNA methylation—a process affecting gene activity without changing the DNA sequence itself.
How Is the Trial Designed?
2Treatment groups
Active Control
Group I: ExercisingActive Control1 Intervention
12 weeks of aerobic exercise training
Group II: Non-exercisingActive Control1 Intervention
standard of care

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of Illinois at Chicago

Lead Sponsor

Trials
653
Recruited
1,574,000+

National Heart, Lung, and Blood Institute (NHLBI)

Collaborator

Trials
3,987
Recruited
47,860,000+

Published Research Related to This Trial

Cardiovascular rehabilitation significantly improves patients' physical and psychological functioning after heart-related illnesses, with benefits including enhanced exercise capacity and reduced symptoms like angina and fatigue.
Recent studies show that exercise training after a heart attack can lower the risk of mortality and major cardiac events by 20 to 25%, highlighting the importance of exercise in improving heart health and reducing future complications.
Cardiovascular rehabilitation: status, 1990.Squires, RW., Gau, GT., Miller, TD., et al.[2019]
A systematic review of 10 randomized controlled trials involving 400 adults with overweight and obesity found that exercise training significantly improved endothelial function, as measured by flow-mediated dilation (FMD), compared to no exercise.
Aerobic training specifically was effective in enhancing FMD (p < 0.001), while resistance training showed no significant effect (p = 0.051), suggesting that aerobic exercise is particularly beneficial for cardiovascular health in this population.
Effect of aerobic and resistance exercise training on endothelial function in individuals with overweight and obesity: a systematic review with meta-analysis of randomized clinical trials.Cortes, MB., da Silva, RSN., de Oliveira, PC., et al.[2023]
Bariatric surgery is an effective treatment for morbid obesity, helping many patients achieve rapid weight loss and reduce obesity-related health issues, but some patients still face ongoing health challenges post-surgery.
Improving cardiorespiratory fitness through tailored exercise programs after bariatric surgery is crucial, as it can enhance overall health outcomes and reduce the risk of mortality.
Effects of Exercise Mode on Improving Cardiovascular Function and Cardiorespiratory Fitness After Bariatric Surgery: A Narrative Review.Mahmoud, AM., Gonçalves da Silva, AL., André, LD., et al.[2023]

Citations

Cardiovascular rehabilitation: status, 1990. [2019]
Effect of aerobic and resistance exercise training on endothelial function in individuals with overweight and obesity: a systematic review with meta-analysis of randomized clinical trials. [2023]
Effects of Exercise Mode on Improving Cardiovascular Function and Cardiorespiratory Fitness After Bariatric Surgery: A Narrative Review. [2023]
The Effect of All Extremity High Intensity Interval Training on Athero-Protective Factors and Endothelial Function in Overweight and Obese Women. [2022]
Effectiveness of a Home-Based Telehealth Exercise Training Program for Patients With Cardiometabolic Multimorbidity: A Randomized Controlled Trial. [2021]
Exercise in aging: its important role in mortality, obesity and insulin resistance. [2021]
The effects of exercise training in addition to energy restriction on functional capacities and body composition in obese adults during weight loss: a systematic review. [2022]
Exercise interventions and peripheral arterial function: implications for cardio-metabolic disease. [2022]
Restoring Perivascular Adipose Tissue Function in Obesity Using Exercise. [2022]
10.United Statespubmed.ncbi.nlm.nih.gov
Role of Perivascular Adipose Tissue and Exercise on Arterial Function with Obesity. [2023]
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