Weighted vs Unweighted Plyometric Conditioning on Vertical Jump Performance in Young Male Soccer Players (PAPE-JUMP)
Differential Time-Course Effects of Weighted and Unweighted Plyometric Conditioning on Vertical Jump Performance in Young Male Soccer Players
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.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Istanbul
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Istanbul, Istanbul, Turquie (Türkiye), 34290
- Istanbul Gelisim University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
Accepte les volontaires sains
La description
Inclusion Criteria:
- Healthy male soccer players aged 18 to 30 years.
- Actively participating in organized soccer training.
- Minimum of 2 years of structured plyometric training experience.
- Competing at the regional development league level.
- Free from lower-limb musculoskeletal injury during the previous 4 months.
- Able to perform maximal jumping tasks.
- Provided written informed consent prior to participation.
Exclusion Criteria:
- History of lower-extremity surgery within the previous year.
- Current lower-limb pain or discomfort during jumping activities.
- Neurological, cardiovascular, or orthopedic disorders affecting neuromuscular performance.
- Use of performance-enhancing substances.
- Failure to comply with study procedures or testing instructions.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: Non randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Weighted Plyometric Conditioning
Participants performed a standardized single-leg plyometric conditioning protocol while wearing a weighted vest equivalent to 10% of their body mass.
Vertical jump performance was assessed at baseline and at 15 seconds, 2 minutes, 4 minutes, and 8 minutes after the conditioning activity.
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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.
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Comparateur actif: Unweighted Plyometric Conditioning
Participants performed the same standardized single-leg plyometric conditioning protocol without external load.
Vertical jump performance was assessed at baseline and at 15 seconds, 2 minutes, 4 minutes, and 8 minutes after the conditioning activity.
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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.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Vertical Jump Height
Délai: Baseline, 15 seconds, 2 minutes, 4 minutes, and 8 minutes after each intervention session
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Vertical jump height (cm) measured before the plyometric conditioning protocol (baseline) and at 15 seconds, 2 minutes, 4 minutes, and 8 minutes after weighted and unweighted plyometric conditioning.
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Baseline, 15 seconds, 2 minutes, 4 minutes, and 8 minutes after each intervention session
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Area Under the Curve (AUC) of Vertical Jump Performance
Délai: Immediately after completion of each intervention session
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Cumulative vertical jump performance across the post-activation period.
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Immediately after completion of each intervention session
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Performance Slope
Délai: Immediately after completion of each intervention session
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Rate of change in vertical jump height across the post-activation period.
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Immediately after completion of each intervention session
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Peak Vertical Jump Height
Délai: 15 seconds to 8 minutes after each intervention session
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Highest vertical jump height achieved during the post-activation assessment period.
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15 seconds to 8 minutes after each intervention session
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Time to Peak Performance
Délai: 15 seconds to 8 minutes after each intervention session
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Time required to reach the highest vertical jump performance following each conditioning protocol.
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15 seconds to 8 minutes after each intervention session
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- PAPE-PLYO-2025-01
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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