Elastic Band-Resisted Plyometric Training in Young Soccer Players

NCT07367230 | Completed

• 1 other identifier: 20.478.486-3318,30/07/2025
• Study Type: interventional
• Target: 33
• Locations: 1 country
• Sites: 1

Brief Summary

This randomized controlled trial investigated the effects of elastic band-resisted plyometric training (EBPT) on jump performance in young male soccer players. Thirty-three youth soccer players aged 14-15 years were randomly assigned to one of three groups: elastic band-resisted plyometric training (EBPT, n=10), traditional plyometric training (PLT, n=11), or control (CON, n=12). Both training groups completed a 6-week intervention consisting of 2 sessions per week with 240-460 foot contacts per session. The primary outcome was countermovement jump without arm swing (CMJ-NS) height. Secondary outcomes included squat jump (SJ), countermovement jump with arm swing (CMJ-AS), single-leg vertical jumps for dominant (SVJ-D) and non-dominant (SVJ-ND) legs, take-off velocity, and peak power. Assessments were conducted at baseline and post-intervention. The study aimed to determine whether adding elastic band resistance to plyometric exercises provides superior training adaptations compared to traditional plyometric training for enhancing lower-limb explosive power in young athletes.

Conditions

Athletic Performance; Plyometric Exercises; Physical Conditioning, Human

Outcome Measures

Primary Outcomes (1)

• Countermovement Jump Without Arm Swing (CMJ-NS) Height

  Vertical jump height measured during countermovement jump without arm swing, assessed using a portable force platform.

  Baseline and 6 weeks (post-intervention)

Secondary Outcomes (4)

• Squat Jump (SJ) Height

  Baseline and 6 weeks

• Countermovement Jump With Arm Swing (CMJ-AS) Height

  Baseline and 6 weeks

• Single-Leg Vertical Jump - Dominant Leg (SVJ-D) Height

  Baseline and 6 weeks

• Single-Leg Vertical Jump - Non-Dominant Leg (SVJ-ND) Height

  Baseline and 6 weeks

Study Arms (3)

Elastic Band-Resisted Plyometric Training (EBPT)

EXPERIMENTAL

Participants performed plyometric exercises with elastic band resistance for 6 weeks, 2 sessions per week

Behavioral: Elastic Band-Resisted Plyometric Training

Traditional Plyometric Training (PLT)

ACTIVE COMPARATOR

Participants performed traditional plyometric exercises without elastic band resistance for 6 weeks, 2 sessions per week,

Behavioral: Traditional Plyometric Training

Control (CON)

ACTIVE COMPARATOR

Participants continued their regular soccer training without any additional plyometric exercises during the 6-week intervention period.

Other: Regular Soccer Training (No Intervention)

Interventions

Elastic Band-Resisted Plyometric Training BEHAVIORAL

Participants performed plyometric exercises (squat jumps, countermovement jumps, drop jumps, and single-leg jumps) with elastic band resistance providing additional load during the concentric phase. Training was conducted twice weekly for 6 weeks, with 240-460 foot contacts per session.

Elastic Band-Resisted Plyometric Training (EBPT)

Traditional Plyometric Training BEHAVIORAL

Participants performed the same plyometric exercises (squat jumps, countermovement jumps, drop jumps, and single-leg jumps) without elastic band resistance. Training was conducted twice weekly for 6 weeks, with 240-460 foot contacts per session.

Traditional Plyometric Training (PLT)

Regular Soccer Training (No Intervention) OTHER

Participants continued their routine soccer training program without any additional plyometric exercises during the 6-week study period.

Control (CON)

Eligibility Criteria

• Age: 14 Years - 15 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• Male soccer players aged 14-15 years
• Member of a registered soccer academy
• Minimum 2 years of soccer training experience
• Regular participation in team training (at least 3 sessions per week)
• No participation in systematic plyometric training in the previous 6 months
• Written informed consent from parent/guardian

You may not qualify if:

• Current musculoskeletal injury or pain
• History of lower extremity surgery in the past 12 months
• Any cardiovascular or respiratory condition that contraindicates high-intensity exercise
• Participation in other training intervention studies
• Inability to attend at least 80% of training sessions

Sponsors & Collaborators

• Serkan özgür: lead

Study Sites (1)

Guzeltepe sport club facility

Izmir, Guzeltepe, 35640, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Lecturer

Model Details: Participants were randomly assigned to one of three parallel groups: elastic band-resisted plyometric training (EBPT, n=10), traditional plyometric training (PLT, n=11), or control (CON, n=12). All participants remained in their assigned groups throughout the 6-week intervention period. Both intervention groups received plyometric training twice weekly, while the control group continued regular soccer training only.

Study Record Dates

• First Submitted: January 16, 2026
• First Posted: January 26, 2026
• Study Start: September 1, 2025
• Primary Completion: September 17, 2025
• Study Completion: October 31, 2025
• Last Updated: April 2, 2026

Record last verified: 2026-03

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)