Integrated Training Program On Jump Performance And Knee Valgus In Youth Football Players

NCT07009041 | Completed

• 1 other identifier: ERU-SAGENS-VSG-01
• Study Type: interventional
• Target: 90
• Locations: 1 country
• Sites: 1

Brief Summary

This study aimed to investigate the effects of stretching, strength, and plyometric exercise training programs, applied in addition to regular training, on jumping performance and knee valgus values in football players.

Conditions

Knee Valgus

Keywords

Football; jump performance; anterior cruciate ligament; knee valgus; injury prevention; exercise training program

Outcome Measures

Primary Outcomes (6)

• Change in Countermovement Jump Height (CMJ) Measured in Centimeters

  CMJ test was performed using the My Jump 2 app. The jump height (in cm) was recorded in 3 separate measurements and the average was used for comparison.Unit of Measure: Centimeters (cm)

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

• Change in Free Arm Countermovement Jump Height (CMJFREE) Measured in Centimeters

  CMJFREE test was performed using the My Jump 2 app with free arm movement. Values were averaged from 3 trials.Unit of Measure: Centimeters (cm)

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

• Change in Drop Jump Height (DJ) Measured in Centimeters

  DJ test was performed using the My Jump 2 app. Jump height (cm) was measured and averaged across 3 attempts.Unit of Measure: Centimeters (cm).

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

• Change in Squat Jump Height (SJ) Measured in Centimeters

  SJ test was performed using the My Jump 2 app. Jump height (cm) was measured and averaged across 3 trials.Unit of Measure: Centimeters (cm)

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

• Change in Horizontal Jump Distance Measured in Centimeters

  Horizontal jump test was performed manually. Jump distance (cm) was recorded and averaged across 3 trials.Unit of Measure: Centimeters (cm)

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

• Change in Knee Valgus Angle Measured in Degrees

  Knee valgus angle was assessed using the My Jump Lab app. Degree values were measured from 3 trials and averaged for each time point.

  Each participant in the study was evaluated by taking 3 separate measurements before starting the study, at the end of the 4th week of the study, and at the end of the 8th week of the study. The total evaluation process was completed within 8 weeks.

Study Arms (2)

Experimental Group

EXPERIMENTAL

The group that received 8-week training programs

Other: Strength training program; Other: Stretching exercises program; Other: Plyometric exercises program; Diagnostic Test: Demographic tests; Diagnostic Test: Jump tests; Diagnostic Test: Knee Valgus tests

Control Group

OTHER

Group without any intervention

Diagnostic Test: Demographic tests; Diagnostic Test: Jump tests; Diagnostic Test: Knee Valgus tests

Interventions

Strength training program OTHER

Strength training was implemented for eight weeks, including full-body, core, and leg exercises.

Experimental Group

Stretching exercises program OTHER

Stretching exercises were performed after strength training for the entire eight-week period. The training was administered exclusively to participants in the experimental group, following a consistent schedule and sequence. The program was conducted three days a week for eight weeks, separate from regular football training.

Experimental Group

Plyometric exercises program OTHER

Plyometric exercises were included only one day per week, and a minimum one-day rest period was maintained between training sessions.Since this program was originally 6 weeks long, it was implemented in the first 6 weeks of the study's implementation process.

Experimental Group

Demographic tests DIAGNOSTIC_TEST

Demographic tests were applied to determine the height, weight and BMI values for the identification of the participants.

Control Group; Experimental Group

Jump tests DIAGNOSTIC_TEST

Jump tests (CMJ, CMJ Free, SJ, DJ, Horizontal Jump). Three different measurements were taken at three different times.(Before starting, end of week 4 and after completion of week 8).

Control Group; Experimental Group

Knee Valgus tests DIAGNOSTIC_TEST

It was conducted to determine the right and left knee valgus values of the participants.Three different measurements were taken at three different times. (Before starting, end of week 4 and after completion of week 8).

Control Group; Experimental Group

Eligibility Criteria

• Age: 18 Years - 19 Years
• Gender Eligibility Details: Male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being a football player playing in the U-19 football team
• Being a male
• Residing in Kayseri
• Be between 18-19 years old

You may not qualify if:

• Not being a football player playing on the U-19 football team
• Being a female
• Residence outside Kayseri
• Being outside the 18-19 age range

Sponsors & Collaborators

• TC Erciyes University: lead

Study Sites (1)

Erciyes University

Talas, None Selected, 38280, Turkey (Türkiye)

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: May 14, 2025
• First Posted: June 6, 2025
• Study Start: September 15, 2024
• Primary Completion: September 15, 2024
• Study Completion: November 12, 2024
• Last Updated: June 6, 2025

Record last verified: 2025-05

Locations

TU (1)