Effects of Combined Training Protocol in Volleyball Players

NCT06875570 | Active Not Recruiting

• 1 other identifier: UKarabuk-4
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

The 12-week training will take place during the preparation period. At the beginning and end of the 12-week period, vertical jump test, 60 seconds countermovement jump (CMJ) test, change of direction (T-Agility) test, sprint test, YO-YO (level-1) test will be applied in terms of performance test. In terms of skill testing, service test and spiking test protocols will be applied. Players will perform plyometric (PL) or jump rope (JR) training with the same amount of total training time in each training session. Rating of perceived exertion (RPE) will be obtained using (CR6-20). All players will also complete the short form of the physical activity enjoyment scale (PACES).

Conditions

Volleyball; Performance; Training; Technical Skills

Keywords

Volleyball; Small Sided Games; Pliometric; Jump rope

Outcome Measures

Primary Outcomes (9)

• Vertical Jump

  Change in vertical jump (cm) is expected from baseline assessment to 12-week follow-up assessment

  From baseline assessment to 12 week follow-up assessment]

• 60s Countermovement Jump

  Change in countermovement jump (watts/kg) is expected from the baseline assessment to the 12-week follow-up assessment..

  From baseline assessment to 12 week follow-up assessment

• Change of Direction

  Changes in change of direction times (sec) are expected from the baseline assessment to the 12-week follow-up assessment.

  From baseline assessment to 12 week follow-up assessment]

• Sprint

  Change in Sprint (km/h) is expected from the baseline assessment to the 12-week follow-up assessment.

  From baseline assessment to 12 week follow-up assessment

• Yo-Yo Intermittent Recovery Test Level 1

  A change in VO2max values from the baseline assessment to the 12-week follow-up assessment is expected.

  From baseline assessment to 12 week follow-up assessment

• Service

  A change in service test values from the baseline assessment to the 12-week follow-up assessment is expected.

  From baseline assessment to 12 week follow-up assessment

• Spiking

  A change in spiking test values is expected from the baseline assessment to the 12-week follow-up assessment.

  From baseline assessment to 12 week follow-up assessment

• Rating of Perceived Exertion (RPE)

  Changes in Rating of Perceived Exertion (RPE) are expected from the baseline assessment to the 12-week follow-up assessment. The scale has a range of 6-20 (CR20). Athletes will indicate whether they do not find exercise difficult (6) or find it difficult (20).

  From baseline assessment to 12 week follow-up assessment

• PAGES

  Changes are expected in the Enjoyment of physical activity scale (PACES) from the baseline assessment to the 12-week follow-up assessment. The scale consists of 8 questions with a score range of 1-7. Athletes will indicate whether they do not enjoy exercise (1) or enjoy it (7).

  From baseline assessment to 12 week follow-up assessment

Other Outcomes (4)

• Anthropometric Measurements 1

  Baseline

• Anthropometric Measurements 2

  Baseline

• Anthropometric Measurements 3

  Baseline

Study Arms (3)

Pliometric Training

EXPERIMENTAL

Players will receive a Plyometric training program at the beginning of the Volleyball training session for a period of 15 minutes, two days a week.

Other: Pliometric Training

Jump Rope training

EXPERIMENTAL

Players will receive a jump rope training program at the beginning of the volleyball training session for 15 minutes, two days a week.

Other: Jump Rope Training

Small Sided Games

EXPERIMENTAL

More complex, skill-based conditioning exercises for volleyball are small-sided games (2v2, 3v3) and competition drills (6v6).

Other: Small Sided Games

Interventions

Pliometric Training OTHER

The full intervention program will cover 12 weeks in the season. Prior to training, players will be instructed to warm-up for ten minutes with general running exercises and dynamic stretching. The plyometric training intervention will consist of 5 exercises performed in the following order: Leap forward and backward on the line, leap sideways on the line, double leg knee to chest, split squat jump, and squat jump (Bavli, 2012). A volleyball coach will monitor the whole training.

Pliometric Training

Jump Rope Training OTHER

The entire intervention program will last for 12 weeks during the season. Before training, players will be instructed to warm up with general running exercises and dynamic stretching for ten minutes. The jump rope intervention will consist of 5 exercises performed in the following order: basic jump step, double leg double jump, double leg jump left and right, double leg jump forward and backward, and scissor steps (Trecroci et al., 2015). Each exercise will be performed by all participants using a jump rope with the same characteristics in terms of weight (e.g. 230g), length (e.g. shoulder size) and material (e.g. PVC, Polyvinyl Chloride). A metronome speed of 120 beats per minute will be used to ensure equal exercise intensity in both exercise programs Furthermore, a volleyball coach will monitor the entire workout.

Jump Rope training

Small Sided Games OTHER

More complex, skill-based conditioning exercises for volleyball are small-sided games (2v2, 3v3) and competition drills (6v6). Although the duration of each rally in these drills is not controlled by the coach, the total duration of the drill will be recorded to aid in-session and inter-session planning. Total repetitions will be easily measured by adding up the total points played in the rally and then multiplying by the number of rallies per point. The coach will create an emotionally intense environment by applying a scoring system (e.g. team winning 2 out of 3 rallies gets 1 big point, 5 seconds rest) and encouraging the players (Trajkovic et al., 2012).

Small Sided Games

Eligibility Criteria

• Age: 18 Years - 25 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being healthy
• Male volleyball athletes
• Willing to maintain the intervention for all sessions

You may not qualify if:

• Being under 18 years old
• Having a chronic disease
• Contraindications for exercise

Sponsors & Collaborators

• Karabuk University: lead

Study Sites (1)

Karabuk University

Karabük, Turkey, 78200, Turkey (Türkiye)

Location

Related Publications (3)

• Fathi A, Hammami R, Moran J, Borji R, Sahli S, Rebai H. Effect of a 16-Week Combined Strength and Plyometric Training Program Followed by a Detraining Period on Athletic Performance in Pubertal Volleyball Players. J Strength Cond Res. 2019 Aug;33(8):2117-2127. doi: 10.1519/JSC.0000000000002461.

  PMID: 29401199 BACKGROUND

• Ozer D, Duzgun I, Baltaci G, Karacan S, Colakoglu F. The effects of rope or weighted rope jump training on strength, coordination and proprioception in adolescent female volleyball players. J Sports Med Phys Fitness. 2011 Jun;51(2):211-9.

  PMID: 21681154 BACKGROUND

• Voelzke M, Stutzig N, Thorhauer HA, Granacher U. Promoting lower extremity strength in elite volleyball players: effects of two combined training methods. J Sci Med Sport. 2012 Sep;15(5):457-62. doi: 10.1016/j.jsams.2012.02.004. Epub 2012 Apr 6.

  PMID: 22484082 BACKGROUND

Study Officials

• Neslihan Akçay, Doctorate

  Karabuk University

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
• Masking Details: Participants were strictly separated and think their intervention is the main intervention. The same is true for care providers. Outcome assessors were unaware of participant group status and were not allowed to ask correspondingly
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assoc. Prof. Dr.

Study Record Dates

• First Submitted: March 8, 2025
• First Posted: March 13, 2025
• Study Start: March 8, 2025
• Primary Completion: May 15, 2025
• Study Completion: May 29, 2025
• Last Updated: March 19, 2025

Record last verified: 2025-03

Locations

TU (1)