Short bodyweight interval workouts for adults living with overweight or obesity
Tests a 10-week bodyweight interval exercise program in adults with overweight.
Plain-language title generated from the registry record
Registry title: Effects of Whole-Body High-Intensity Interval Training on Fitness in Overweight Adults
Key facts
- Where
- Brussels, BelgiumSee the site
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 55 years old?
Source: NCT07582718, who can take part
Where in Belgium
- Universite Libre de Bruxelles ULB -Brussels, BelgiumTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Université Libre de Bruxelles
- Trial code
- NCT07582718
- Record updated
- 13 May 2026
- Original description
This study aims to evaluate the effects of a supervised whole-body high-intensity interval training (WB-HIIT) program on physical fitness and health outcomes in adults with overweight and obesity. WB-HIIT is a practical and time-efficient training modality based on body-weight exercises performed at high intensity with short recovery intervals. It may offer an accessible approach for improving health in individuals with excess body weight.Read full original descriptionShow less
Effects of a Whole-body High-intensity Interval Training on Cardiorespiratory Fitness, Musculoskeletal Fitness, Body Composition and Blood Parameters in Overweight Subjects
This study aims to evaluate the effects of a supervised whole-body high-intensity interval training (WB-HIIT) program on physical fitness and health outcomes in adults with overweight and obesity. WB-HIIT is a practical and time-efficient training modality based on body-weight exercises performed at high intensity with short recovery intervals. It may offer an accessible approach for improving health in individuals with excess body weight.
Participants aged 18 to 55 years with a body mass index (BMI) between 25 and 35 kg/m² will take part in a supervised 10-week WB-HIIT program, performed in small groups and led by trained exercise professionals. Before and after the intervention, participants will undergo assessments including DXA-based body composition analysis, fasting blood sampling, muscular strength testing, a Chester step test, a maximal graded treadmill exercise test with gas-exchange analysis to determine VO₂peak, and functional evaluations (chair-stand, arm-curl, and 6-minute walk test). Physical activity and dietary intake will also be recorded.
The primary objective of the study is to assess whether WB-HIIT improves cardiorespiratory fitness (VO₂peak) in adults with overweight. Secondary objectives include evaluating changes in muscular strength, body composition, metabolic markers, and functional capacity.
The results may help determine whether an equipment-free WB-HIIT program can serve as an effective and accessible training approach for improving health and physical fitness in adults with overweight and obesity.
Inclusion: Adults aged 18 to 55 years; Body mass index (BMI) between 25 and 35 kg/m²; Able to provide written informed consent; Able to safely participate in high-intensity interval training; For participants with BMI > 30 kg/m²: medical clearance from their general practitioner.
Exclusion: Presence of any chronic medical condition other than overweight/obesity; Known cardiovascular, metabolic, respiratory, or musculoskeletal disease that contraindicates high-intensity exercise; Any condition judged by investigators to interfere with participation or data interpretation; BMI < 25 or > 35 kg/m²; Pregnancy; Inability to perform exercise testing or complete the WB-HIIT program.