NCT07512570

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

Feasibility and Preliminary Effects of a Structured Resistance Training Programme in Children Aged 10-14 Years: A Randomised Controlled Pilot Study

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 31 (estimated)
• Sponsor: Charles University, Czech Republic · Academic / Other
• Sex: All
• Age: 10 Years – 14 Years
• Healthy volunteers: Accepted

Summary

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).

Conditions

• Muscle Architecture
• Ultrasonic Diagnosis

Interventions

Type	Name	Description
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), with progressive overload applied individually based on proper technique. The program is divided into three phases: familiarisation (weeks 1-2), progressive overload (weeks 3-5), and strength-oriented training (weeks 6-8). Sessions are delivered in small groups under qualified supervision to ensure safety and adherence.

Timeline

• Start date: 2026-09-01
• Primary completion: 2027-12-31
• Completion: 2028-09-30
• First posted: 2026-04-06
• Last updated: 2026-04-06

Locations

1 site across 1 country: Czechia