Jumping and sprints: which exercise helps obese Kids' muscles and tendons more?
NCT ID NCT06727500
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study compares two exercise programs—high-intensity interval training (HIIT) alone versus HIIT combined with plyometric (jump) training—in 40 children with obesity at different growth stages. Over 12 weeks, researchers will measure changes in muscle and tendon stiffness, strength, and metabolism. The goal is to understand which exercise approach works best for improving muscle-tendon health in this population.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- High-intensity interval training (HIIT) and plyometric (jump) exercises
- What this could lead to
- If successful, this could show which exercise type best improves muscle and tendon health in children with obesity, guiding future fitness programs.
- What could go wrong
- This is a small, early-stage study with only 40 participants, so results may not apply to all children. It measures physical changes, not long-term health outcomes.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2025
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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7 to 17 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Pediatric population with obesity determined by the body mass index by z-score (BMI-z) ≥ 2 standard deviations (SD) and ≤ 3.5 SD of the median for age and sex. * Pediatric population with -1 to -3 APHV (pre-APHV) and +1 to +3 APHV (post-APHV). Exclusion Criteria: * Cognitive Disabilities. * Musculoskeletal condition that prevents regular physical activity. * Severe heart diseases that contraindicate the practice of physical activity. * Individuals who perform supervised exercise in the past six months.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago, Chile
RECRUITINGSantiago, Chile
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