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EFFECTS OF TRAINING WITH STROBOSCOPIC GLASSES ON ATHLETIC PERFORMANCE IN VOLLEYBALL PLAYERS

NCT ID: NCT07308535

Last Updated: 2025-12-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

54 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-12

Study Completion Date

2025-05-24

Brief Summary

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This study was conducted to investigate the effects of training with stroboscopic glasses on athletic performance in volleyball players. 54 male volleyball players participated in the study. Individuals were randomly divided into two groups as experimental group (n=27) and control group (n=27). Passing, reception and blocking exercises were performed paired with stroboscopic glasses in the experimental group and without glasses in the control group for 6 weeks. Measurements were made twice, before the exercise program and at the end of the 6-week exercise program. Reaction time was evaluated with the Human Benchmark test, agility with T agility test, anaerobic power with vertical jump, balance with Flamingo balance test, coordination with Hexagonal coordination test.

Detailed Description

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In the study, individuals were evaluated face to face at the Turkish Volleyball Federation Beştepe Volleyball Hall. The evaluations lasted 30 minutes for each individual. After the sociodemographic information of the individuals in our study was recorded, individuals were divided into two groups as the experimental group and the control group using a computer numbering system. Necessary information and explanations were provided to individuals in the experimental group with Senaptec brand stroboscopic glasses (Beaverton, Oregon USA) before the application. Passing, reception and blocking training was performed with glasses in the stroboscopic glasses group. Training was performed without stroboscopic glasses in the control group. It was performed after the players' warm-up exercises for 3 sessions per week for 6 weeks. Since there was one stroboscopic glass, the evaluations were planned for 2 days, lasting 30 minutes for each individual. Reaction time, agility and anaerobic power were performed on the first day, and coordination and balance were performed on the second day. The evaluations were performed after the warm-up exercises. The evaluations were performed twice, before the training program and at the end of 6 weeks.

Conditions

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Stroboscopic Visual Training Physical Fitness

Keywords

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Volleyball stroboscopic glasses athletic performance physical fitness visual training

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

In the study, individuals were evaluated face to face at the Turkish Volleyball Federation Beştepe Volleyball Hall. The evaluations lasted 30 minutes for each individual. After the sociodemographic information of the individuals in our study was recorded, individuals were divided into two groups as the experimental group and the control group using a computer numbering system. Necessary information and explanations were provided to individuals in the experimental group with Senaptec brand stroboscopic glasses (Beaverton, Oregon USA) before the application. Passing, reception and blocking training was performed with glasses in the stroboscopic glasses group. Training was performed without stroboscopic glasses in the control group. It was performed after the players' warm-up exercises for 3 sessions per week for 6 weeks. Since there was one stroboscopic glass, the evaluations were planned for 2 days, lasting 30 minutes for each individual. Reaction time, agility and anaerobic power were
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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stroboscopic glasses group

27 volleyball players were evaluated at three times: pre-exercise, after 6 weeks and after 10 weeks regard to reaction time, agility, anaerobic performance, balance and coordination. Experimental group used stroboscopic glasses when doing exercise. Exercise program consisted lunge, jumping and balance exercises. Each exercise consisted 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency are always preferred scientific research about stroboscopic visual training.

Group Type EXPERIMENTAL

stroboscopic visual training

Intervention Type DEVICE

27 volleyball players were evaluated two times: pre-exercise and after 6 weeks. Reaction time, agility, anaerobic performance, balance and coordination were measured regard to athletic performance. Athletes using stroboscopic glasses perform exercise program. Exercise program consisted of lunge, balance and jumping exercises. Each exercise consisted of 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency is always preferred in scientific research.

Control group

27 volleyball players only exercised

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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stroboscopic visual training

27 volleyball players were evaluated two times: pre-exercise and after 6 weeks. Reaction time, agility, anaerobic performance, balance and coordination were measured regard to athletic performance. Athletes using stroboscopic glasses perform exercise program. Exercise program consisted of lunge, balance and jumping exercises. Each exercise consisted of 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency is always preferred in scientific research.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Male individuals between the ages of 18-35
* Being a professional volleyball player
* Not having undergone surgery in the last 6 months
* Not having any chronic, systemic or neuromuscular disease
* Not having any visual, cognitive or vestibular disorders

Exclusion Criteria

* Individuals under the age of 18 and over the age of 35
* Female individuals
* Sedentary individuals
* Having visual, cognitive or vestibular disorders
* Having any chronic, systemic neuromuscular diseases
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Baskent University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nihan Özünlü PEKYAVAŞ, PROFESSOR

Role: STUDY_DIRECTOR

Baskent University

Locations

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Baskent University

Ankara, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

References

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Ramirez-Campillo R, Andrade DC, Nikolaidis PT, Moran J, Clemente FM, Chaabene H, Comfort P. Effects of Plyometric Jump Training on Vertical Jump Height of Volleyball Players: A Systematic Review with Meta-Analysis of Randomized-Controlled Trial. J Sports Sci Med. 2020 Aug 13;19(3):489-499. eCollection 2020 Sep.

Reference Type RESULT
PMID: 32874101 (View on PubMed)

Zwierko T, Tapia V, Vera J, Redondo B, Morenas-Aguilar MD, Garcia-Ramos A. Enhancing reactive agility in soccer: The impact of stroboscopic eyewear during warm-up across fatigued and non-fatigued conditions. Eur J Sport Sci. 2024 Dec;24(12):1798-1808. doi: 10.1002/ejsc.12224. Epub 2024 Nov 22.

Reference Type RESULT
PMID: 39578413 (View on PubMed)

Ahmadi M, Nobari H, Ramirez-Campillo R, Perez-Gomez J, Ribeiro ALA, Martinez-Rodriguez A. Effects of Plyometric Jump Training in Sand or Rigid Surface on Jump-Related Biomechanical Variables and Physical Fitness in Female Volleyball Players. Int J Environ Res Public Health. 2021 Dec 11;18(24):13093. doi: 10.3390/ijerph182413093.

Reference Type RESULT
PMID: 34948702 (View on PubMed)

Keoliya AA, Ramteke SU, Boob MA, Somaiya KJ. Enhancing Volleyball Athlete Performance: A Comprehensive Review of Training Interventions and Their Impact on Agility, Explosive Power, and Strength. Cureus. 2024 Jan 31;16(1):e53273. doi: 10.7759/cureus.53273. eCollection 2024 Jan.

Reference Type RESULT
PMID: 38435930 (View on PubMed)

Mikolajec K, Nowak B, Banys D, Krzysztofik M, Skalski DT, Markiel A, Maszczyk A. Factors determining sports results in elite national volleyball teams between 2004 and 2016. Biol Sport. 2025 Jan;42(1):145-150. doi: 10.5114/biolsport.2025.139085. Epub 2024 Jul 31.

Reference Type RESULT
PMID: 39758186 (View on PubMed)

Other Identifiers

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KA25/182

Identifier Type: -

Identifier Source: org_study_id