The Effects of Progressive Core Stabilization Exercise Training

The Effects of Progressive Core Stabilization Exercise Training on Muscle Strength, Endurance, and Balance in Adolescent Female Volleyball Players

A study to investigate the effects of 6 week-core stability training on adolescent volleyball players

Study Overview

• Status: Completed
• Conditions: Adolescent; Sports Physical Therapy; Sports Injury; Core Stability; Female Athlete
• Intervention / Treatment: Other: Progressive Core Stabilization Exercise Training

Detailed Description

Aim: The purpose of this study is to reveal effectiveness of 6-week progressive core stabilization exercise training on muscle strength, endurance, and balance in adolescent female volleyball players.

Method: Adolescent female volleyball players will be divided into study and control groups. Both groups will continue their routine ball training (30 times/day, totally 6-week), the SG will also participate in progressive core stabilization exercise training (45 min/session, 3 times/week, totally 6-week). Core muscle endurance (sit-ups test, lateral bridge test and Biering Sorenson Test), isokinetic muscle strength test of gluteus medius (Biodex 3 dynamometer in 1800/s, 2700/s, and 3600/s) and balance (Star Excursion Balance Test) will be evaluated in all players before and after 6-week follow-up.

• Study Type: Interventional
• Enrollment (Actual): 12
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• female volleyball player aged between 12-14 years
• being trained by the same trainer

Exclusion Criteria:

• having had a lower or upper extremity injury lasting less than 3 months
• having had a back-related operation
• being diagnosed with spondylosis-spondylolisthesis
• having acute low back pain
• lack of family permission or
• not being willingness.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Control group; Routine volleyball training
Experimental: Study Group; Study group continued 6 weeks of core stability training additional to routine volleyball training	Other: Progressive Core Stabilization Exercise Training; The effects of 6 weeks progressive core stabilization exercise training on adolescent volleyball players' balance, strength and endurance

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Sit up test	Athletes will lay on the mat in a supine position. Athletes will be asked to lock their hands behind their necks and stand up until their shoulder-scapula break contact with the ground within 30 seconds (s) and 1 minute (min). Movement will be taught by being given the right to try it once. The number of repetitions of the athlete within the given periods will be recorded.	2 days
Lateral bridge tests	The athlete will be asked to lay on her side, and a support surface will be created with the lower arm starting from the elbow. The athlete will be informed to hold uninvolved arm akimbo and lift the hips and knees off the ground. All athletes will be allowed to try once before the real test. During the performance, the time when the hips and knees are lifted off the ground with maintained balance while keeping body symmetry will be recorded in second (s) unit by using chronometer. R and L sides will be measured consecutively.	2 days
Biering-Sorenson Test	To evaluate endurance of the back extensor muscles, the athlete will be asked to lay face down with his body hanging off the bed from the anterior superior iliac spine. The athlete will be fixed from the legs at the level of the gastrocnemius muscle and will be asked to keep the torso parallel to the ground against gravity, with the hands clasped on the chest. Partial trunk extension will be allowed. The time she could stand parallel to the ground will be recorded in second (s) unit by using chronometer. The time will be stopped as soon as body parallelism was broken.	2 days
Star Excursion Balance Test	Right and left leg balance of the athletes will be tested with shoes. A star shape will be created on the floor by using 8 taping measures. Standing on the side to be tested, foot at the center point of the star, the athlete will be asked to reach and return with her foot in the air in 8 directions without losing her balance. Right side balance will be evaluated first. For this purpose, the athlete will be asked to reach forward, anteromedially, medially, posteromedially, posteriorly, posterolaterally, laterally, anterolaterally three times with her left foot in a clockwise order. A rest period of 5 min will be given and the same procedure will be repeated for the left foot. Values will be recorded in centimeters (cm) and the average of obtained 3 values will be used in the analysis.	2 days
Isokinetic Test	The strength and endurance of the gluteus medius muscle will be evaluated with the Isokinetic System Biodex 3 device. Before the evaluation, the athletes will be given stretching exercises to warm their lower extremity and waist muscles. For the test, the athletes will be asked to abduct their hips as strong and fast as possible on standing while their hands are on their waist. Before evaluations, a trial will be given to teach movement. After trial, the athlete will perform 5-5-15 repetitions, consisting of a total of 3 sets of 180, 270 and 360 degree per second (0/s), respectively. There will be a 40-second break between each measurement. The athlete will rest for 2 minutes between right and left hip measurements.	1 week

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Weight	Weight of the players will be assessed in kilogram unit by using weighting machine	1 day
Height	Height of the players will be assessed in meter unit by using tape measure	1 day
Body Mass Index (BMI)	BMI value will be calculated by using formula and noted in kg/m^2 unit.	1 day
Menstruation period	Period that have passed since their first menstruation will be noted in month unit.	1 day
Sports Age	Period that have passed since their start of playing volleyball.	1 day

Collaborators and Investigators

• Sponsor: Halic University
• Collaborators: Atlas University; Izmir Democracy University

Study record dates

Study Major Dates

• Study Start (Actual): January 10, 2012
• Primary Completion (Actual): March 11, 2012
• Study Completion (Actual): April 15, 2012

Study Registration Dates

• First Submitted: February 20, 2024
• First Submitted That Met QC Criteria: June 22, 2024
• First Posted (Actual): June 27, 2024

Study Record Updates

• Last Update Posted (Actual): June 27, 2024
• Last Update Submitted That Met QC Criteria: June 22, 2024
• Last Verified: June 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Wounds and Injuries; Athletic Injuries
• Other Study ID Numbers: FB-Volley-Core-2012

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated device product: No