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Weighted vs Unweighted Plyometric Conditioning on Vertical Jump Performance in Young Male Soccer Players

NCT07755345 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2026-08-13

No results posted yet for this study

Summary

Explosive lower-limb power is essential for soccer performance and contributes to jumping, sprinting, and rapid changes of direction. Plyometric exercises are commonly used during warm-up to improve neuromuscular readiness and may enhance subsequent athletic performance through post-activation performance enhancement (PAPE). However, it remains unclear whether adding external load during plyometric conditioning provides greater benefits than performing the same exercises without additional load.

The purpose of this study is to compare the acute effects of weighted and unweighted plyometric conditioning on vertical jump performance in young male soccer players. Participants complete two experimental sessions separated by 48 hours. In one session, they perform a standardized single-leg plyometric protocol without external load, and in the other session they perform the same protocol while wearing a weighted vest equivalent to 10% of their body mass. Vertical jump height is assessed before exercise and at several time points after the conditioning activity to examine the time course of performance changes.

The findings of this study are expected to improve understanding of the optimal use of weighted plyometric conditioning during warm-up and provide practical guidance for coaches and sports practitioners seeking to maximize explosive performance before training and competition.

Conditions

  • Post-Activation Performance Enhancement (PAPE)
  • Plyometric Exercise
  • Vertical Jump Performance
  • Soccer Players

Interventions

BEHAVIORAL

Weighted Plyometric Conditioning

Participants completed three sets of ten single-leg plyometric repetitions while wearing a weighted vest corresponding to 10% of their body mass. Sessions were separated by 48 hours, and jump performance was measured before and after the conditioning protocol.

BEHAVIORAL

Unweighted Plyometric Conditioning

Participants completed the identical single-leg plyometric conditioning protocol without external load. Vertical jump performance was measured before and after the conditioning protocol using the same assessment schedule.

Sponsors & Collaborators

  • Istanbul Gelisim University

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-03-15
Primary Completion
2025-04-30
Completion
2025-04-30

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07755345 on ClinicalTrials.gov