Feasibility and Preliminary Effects of a Structured Resistance Training Program in Children Aged 10-14 Years

Starting soon · Not applicable

Conditions studied: Muscle Architecture, Ultrasonic Diagnosis

In brief

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).

Key facts

Study ID

NCT07512570

Run by

Charles University, Czech Republic

People needed

31

Starts

2026-09-01

Expected to finish

2028-09-30

Last updated by the study team

2026-04-06

Who can join

Age: 10 and older, up to 14. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 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

You may not qualify if…

• 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

Where it is running

• Faculty of Physical Education and Sport Charles University — Prague, Czech Republic, Czechia

Full record on ClinicalTrials.gov

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