About this trial
High-intensity interval training (HIIT), as an individualized exercise training mode based on cardiopulmonary exercise testing (CPET), is characterized by high-intensity training sessions interspersed with short rest periods. The findings from recent trials suggest that in the management of metabolic dysfunction-associated fatty liver disease (MAFLD), compared with traditional aerobic exercise modes such as moderate-intensity continuous training, HIIT may achieve similar or even better effects in reducing liver fat content, increasing peak oxygen uptake, improving insulin resistance, and lowering blood pressure, despite requiring less time commitment and lower energy expenditure. However, there is currently no consensus regarding the formulation of HIIT exercise protocols.
Based on the lower limits of the current mainstream HIIT intensity, sets, and interval time parameters, this study aims to assess the effectiveness, safety, and feasibility of the current exercise prescription in improving MAFLD.
Eligibility criteria
Qualifiers
Overweight or Obesity: ≥ 24kg/m2,or waist circumference ≥ 90 cm in men and > 85 cm in women, or excessive body fat mass
Prediabetes or type 2 diabetes mellitus: HbA1c ≥ 5.7%, or fasting plasma glucose ≥ 6.1mmol/L, or 2-h plasma glucose during OGTT ≥ 7.8mmol/L
Plasma triglycerides ≥ 1.7 mmol/L (>-150 mg/dl) or lipid-lowering treatment
HDL-cholesterol ≤ -1.0 mmol/L in men and ≤ -1.3 mmol/L in women or lipid-lowering treatment
Disqualifiers
Contraindications for Cardiopulmonary Exercise Testing
The electrocardiogram (ECG) results during cardiopulmonary exercise testing (CPET) showed positive findings
Receiving GLP-1 receptor agonists, SGLT-2i, or taking >2 antihypertensive/hypoglycemic/lipid-lowering/ antiarrhythmic drugs
Taking dietary supplements (e.g., fish oil products, over-the-counter diet pills, meal replacements)
Trial design
Treatments tested in this trial
- HIIT
- No specific exercise intervention.
Treatment groups
Sponsors and collaborators
Tang Yida
Lead sponsor
Peking University Third Hospital
Sponsor institution