Pilot Study on Core Stabilization Training on Stable vs Unstable Surfaces in Young Rhythmic Gymnasts

Not Applicable

Recruiting

• Conditions: Postural Balance; Motor Skills; Physical Fitness; Athletic Performance

• Registration Number: NCT06966648
• Lead Sponsor: International Hellenic University

Brief Summary

This pilot randomized controlled trial will investigate the effects of a 7-week core stabilization program performed on stable versus unstable surfaces in young competitive rhythmic gymnasts. Sixteen athletes will be randomized into two groups and will be assessed for changes in static balance and pivot performance.

Detailed Description

Rhythmic gymnastics requires high-level neuromuscular control, especially for skills involving balance and rotation. Core stabilization exercises are commonly included in training, but limited evidence exists regarding the impact of surface type on training effectiveness. This pilot study will compare the effects of a 7-week core stabilization program conducted on stable versus unstable surfaces on balance and pivot execution in rhythmic gymnasts aged 7-12. Participants will be randomly allocated into two equal groups and will be assessed pre- and post-intervention on selected balance and pivot tasks in accordance with Fédération Internationale de Gymnastique (FIG) standards. The study aims to inform future trials by estimating effect sizes and assessing the feasibility of the protocol.

Study Timeline

• Status Verified: 2025-05
• Study First Submitted: 2025-05-04
• Study First Submitted QC: 2025-05-04
• Last Update Submitted: 2025-05-04
• Study Start: 2025-05-05
• Study First Posted: 2025-05-13
• Last Update Posted: 2025-05-13
• Primary Completion: 2025-07-05
• Study Completion: 2025-07-05

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Female
• Target Recruitment: 16

Inclusion Criteria

• Female rhythmic gymnasts aged 7 to 12 years
• Minimum of 1 year of experience in rhythmic gymnastics
• Active participation in organized training at least 3 times per week
• No current musculoskeletal pain or injury
• Ability to perform all training and assessment tasks safely
• Written informed consent provided by a parent or legal guardian

Exclusion Criteria

• History of acute lower limb or spinal injury within the past 6 months
• Presence of neurological, orthopedic, or vestibular disorders affecting balance
• Concurrent participation in other structured physical training programs outside rhythmic gymnastics
• Any medical condition that would contraindicate participation in physical exercise

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Balance Duration	Baseline and Week 7 (post-intervention)	Balance performance will be measured in seconds using a handheld stopwatch (Ultrak 250 Stopwatch Chronometer). Each gymnast will perform three static balance elements (passé, attitude, and side split with help) in relevé position while wearing half shoes. The timer will start once the gymnast achieves final posture and stop when balance is lost, form deteriorates, or the center of gravity shifts. Five trials will be performed for each element, and the longest successful attempt will be recorded. All tests will be performed with eyes open.
Pivot Performance (Number of Clean Rotations)	Baseline and Week 7 (post-intervention)	Pivot performance will be assessed as the number of clean, full rotations executed without technical faults, based on Fédération Internationale de Gymnastique (FIG) regulations. Each gymnast will perform two pivot elements (passé forward and attitude) in relevé position while wearing half shoes, maintaining proper form and control. Five attempts will be performed for each pivot type, and the highest number of clean rotations will be recorded. All tests will be performed with eyes open.

Trial Locations

Locations (1)

International Hellenic University; 🇬🇷 Thessaloniki, Greece