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Completed

NCT Number: NCT07367230

Elastic Band-Resisted Plyometric Training in Young Soccer Players

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 120-230 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.

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Key information

Age range

14 year–15 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Guzeltepe sport club facility

Izmir, Guzeltepe, 35640, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

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 120-230 foot contacts per session.

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 120-230 foot contacts per session.

Regular Soccer Training (No Intervention)

Other

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

Primary outcomes

  1. Countermovement Jump Without Arm Swing (CMJ-NS) Height

    Time frame: Baseline and 6 weeks (post-intervention)

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

Secondary outcomes

  1. Squat Jump (SJ) Height

    Time frame: Baseline and 6 weeks

    Vertical jump height measured during squat jump using a portable force platform.

  2. Countermovement Jump With Arm Swing (CMJ-AS) Height

    Time frame: Baseline and 6 weeks

    Vertical jump height measured during countermovement jump with arm swing using a portable force platform.

  3. Single-Leg Vertical Jump - Dominant Leg (SVJ-D) Height

    Time frame: Baseline and 6 weeks

    Vertical jump height measured during single-leg jump from the dominant leg using a portable force platform.

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

    Time frame: Baseline and 6 weeks

    Vertical jump height measured during single-leg jump from the non-dominant leg using a portable force platform.

Sponsors and collaborators

Lead sponsor

Serkan özgür

Other

Registry information

Official study title

Effects of Elastic Band-Resisted Plyometric Training on Jump Performance in Young Male Soccer Players: A Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jan 26, 2026
Registry last updated
Jun 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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