Feasibility and Preliminary Effects of a Structured Resistance Training Program in Children Aged 10-14 Years
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Progressive Resistance Training Program.
- Who it may be relevant to
- Registry conditions: Muscle Architecture, Ultrasonic Diagnosis. Basic parameters: 10 years — 14 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Czechia
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Feasibility and Preliminary Effects of a Structured Resistance Training Programme in Children Aged 10-14 Years: A Randomised Controlled Pilot Study
Overview
This study is a randomised controlled pilot trial designed to evaluate the feasibility, safety, and preliminary efficacy of a 12-week resistance training intervention in children aged 10-14 years. The study adheres to the CONSORT extension for randomised pilot and feasibility trials and incorporates key elements of the SPIRIT guidelines for clinical trial protocols. The primary purpose of the study is to assess feasibility-related outcomes and to generate effect size estimates to inform the design of a subsequent fully powered randomised controlled trial (RCT).
Interventions
- Behavioral Progressive Resistance Training Program
An 8-week supervised progressive resistance training (PRT) program performed twice weekly in children aged 10-14 years. Each \~45-minute session includes a warm-up, whole-body resistance exercises (with emphasis on lower-limb musculature), and a cool-down. Exercises include squat variations, hip hinge movements, unilateral lower-limb exercises, upper-body pushing and pulling, and core stabilization. Training intensity is prescribed using a youth-specific rating of perceived exertion (RPE 5-8),
Primary outcome measures
- Muscle Quality (Echo Intensity) [Time frame: Time Frame: Pre-intervention (baseline) and post-intervention (8 weeks)]
- Muscle Strength (Knee Extensor Strength) [Time frame: Time Frame: Pre-intervention and post-intervention (8 weeks)]
- Feasibility of the Intervention [Time frame: Throughout the 8-week intervention]
- Safety of the Intervention [Time frame: Throughout the 8-week intervention]
Secondary outcome measures (2)
- Functional Performance [Time frame: Pre-intervention and post-intervention (8 weeks)]
- Body Composition [Time frame: Pre-intervention and post-intervention (8 weeks)]
Eligibility criteria
Inclusion criteria
- Children aged 10-14 years
- Ability to safely participate in supervised resistance training
- Written informed consent from a parent or legal guardian
- Assent provided by the child participant
- Willingness to comply with all study procedures and attend training sessions
Exclusion criteria
- Acute illness at the time of enrolment
- Recent musculoskeletal injury or immobilisation
- Chronic cardiovascular, metabolic, or endocrine disorders
- Use of medications that may affect muscle composition or function
- Any medical or psychological condition that may compromise safety or adherence
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Prevention
Study locations
Czechia · 1 center
- Faculty of Physical Education and Sport Charles University — Prague
Identifiers
NCT: NCT07512570 · EK 007/2026