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Not yet recruiting NCT07407478

Effect of Foot Core Exercises on Jump Performance in Professional Volleyball Players

No phase Interventional Athletic Performance

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Strength Training Program, Foot Core Exercise Program.
Who it may be relevant to
Registry conditions: Athletic Performance. Basic parameters: 18 years — 35 years · Male.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Turkey (Türkiye)
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Effect of Foot Core Exercises on Jump Performance in Professional Volleyball Players: An Objective Evaluation Using ForceDecks

Overview

Brief Summary The purpose of this study is to investigate the effect of foot core exercises on jump performance in professional volleyball players. Participants will be randomly assigned to two groups. The first group will perform a strength training program only, while the second group will perform foot core exercises in addition to the same strength training program. Jump performance will be assessed using the Countermovement Jump (CMJ) test, and performance scores will be obtained through force-time analysis using the ForceDecks system. The findings of this study are expected to contribute to the development of training programs aimed at improving performance and reducing injury risk in professional volleyball players.

Detailed description

Detailed Description

This study is designed to examine the effects of foot core exercises on jump performance in professional volleyball players. Participants will be divided into two groups: a control group and an intervention group. The control group will follow a standardized strength training program, while the intervention group will perform the same strength training program combined with additional foot core exercises.

Jump performance will be evaluated using the Countermovement Jump (CMJ) test. Kinetic variables derived from force-time data will be collected using the ForceDecks system. Pre- and post-intervention measurements will be compared to determine the effects of the training programs.

The results of this study are expected to provide evidence-based information for designing training programs that enhance athletic performance and help reduce injury risk in professional volleyball players.

Interventions

  • Behavioral Strength Training Program
    Description Participants will perform a standardized lower-extremity strength training program routinely used for professional volleyball players. Arms Assigned * Strength Training Group * Strength Training Plus Foot Core Exercises Group
  • Behavioral Foot Core Exercise Program
    Description Participants will perform foot core exercises targeting intrinsic and extrinsic foot muscles. The exercises are designed to improve foot stability and functional control. Arms Assigned ✔️ Strength Training Plus Foot Core Exercises Group ❌ Strength Training Group (işaretleme)

Primary outcome measures

  • Vertical Jump Height (Countermovement Jump) [Time frame: Baseline and post-intervention (approximately 8 weeks)]
Secondary outcome measures (1)
  • Force-Time Variables During Countermovement Jump [Time frame: Baseline and post-intervention (approximately 8 weeks)]

Eligibility criteria

Inclusion criteria

  • Male professional volleyball players aged 18 to 35 years
  • Actively licensed athletes competing in clubs affiliated with the Turkish Volleyball Federation
  • Regular participation in team training sessions without interruption for at least the past 3 months
  • No history of surgery or serious injury involving the lower extremities (foot, ankle, knee, or hip) within the last 6 months
  • Agreement not to participate in any additional strength, balance, or proprioception-based exercise programs during the study period
  • No medical or physiological condition that would prevent participation in the Countermovement Jump (CMJ) test performed using the ForceDecks system
  • Voluntary participation with written informed consent obtained prior to enrollment

Exclusion criteria

  • Presence of deformity, chronic pain, or functional impairment in the foot or ankle
  • History of lower extremity orthopedic surgery within the past 6 months
  • History of neurological or vestibular disorders, or systemic diseases affecting balance
  • Participation in physiotherapy interventions, rehabilitation protocols, or exercise programs outside the scope of the study during the study period

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Open label
Primary purpose
Prevention

Study locations

Turkey (Türkiye) · 1 center
  • Mudanya University — Bursa

Identifiers

NCT: NCT07407478 · 2025/222

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗