NCT04887454Completed
Optimal Frequency of High-Intensity Interval Training for Centrally Obese Adults
Source: ClinicalTrials.gov · Last updated 30 Mar 2025
Brief summary (registry, in English)
The aim of this study is to examine the therapeutic effectiveness of two different exercise frequencies of high-intensity interval training (HIIT; once versus thrice weekly, with matched weekly exercise volume) on improving cardiometabolic risk factors in centrally obese adults.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 315 (actual)
- First submitted
- 10 May 2021
- Start date
- 1 Sept 2021
- Primary completion date
- 7 Sept 2024
- Lead sponsor
- The University of Hong Kong
- Diseases
- Obesity
- NCT number
- NCT04887454
What you commit to
- Study type: Interventional
- Participants enrolled: 315
- From 1 Sept 2021 to the primary completion date, 7 Sept 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Surgery, therapy or medication for obesity or weight loss in the past six months (e.g., gastric bypass, gastric band, sleeve gastrectomy, gastric reduction duodenal switch, and dietitian-prescribed dietary program)
Other illness
- Medical and somatic conditions that prevent brisk walking
- Chronic diseases affecting mobility and motor function (e.g., neurological disease, musculoskeletal disorder, spinal cord injury, autoimmune, arthritis, Parkinson's Disease)
- Chronic diseases affecting cardiorespiratory and metabolic health (e.g., cancers, cardio-/cerebrovascular diseases, heart disease, diabetes mellitus, pneumonia, chronic pulmonary diseases, nephritis, nephrosis)
- Signs of cardiac arrhythmia indicated by aberrant electrocardiography during incremental VO2max test
Other
- Regular moderate-to-vigorous intensity exercise (≥150 min weekly) in the past 3 months, as screened by a specially designed questionnaire
- Daily smoking habit
- Excess alcohol consumption (daily ≥30g for men, ≥20g for women) in the past six months
- Claustrophobia
Who the study is looking for
- Aged above 18 years
- Ethnic Chinese
- Overweight (BMI ≥23 for Asian)
- Centrally obese according to IDF and NCEP with Asian-specific cut-off (waist circumference ≥90 cm for males; ≥80 cm for females)
- Males and females
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| LKS Faculty of Medicine Coordinator of this site? Confirm its status | Hong Kong | Hong Kong SAR China | Unknown status |
Related publications
- Once and thrice weekly interval training in adults with central obesity: a randomized controlled trial.Nat Commun · 2026 · PMID 41519797
This page is information, not medical advice. Discuss any trial with your doctor.