Investigation of the Effects of Exercises Performed With Stroboscopic Glasses on Athletic Performance in Volleyball Players

NCT ID: NCT07323108

Last Updated: 2026-01-07

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

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-01

Study Completion Date

2025-02-01

Brief Summary

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The aim of this study was to examine the effects of exercises performed with stroboscopic glasses on athletic performance in volleyball players. 40 professional male volleyball players aged between 18-35, who had not undergone any surgery in the last 6 months and who had no chronic systemic disease were included in the study. 20 individuals were randomly assigned to the stroboscopic glasses group and 20 individuals to the control group. Individuals in the stroboscopic glasses group were informed about stroboscopic glasses. Individuals in the stroboscopic glasses group wore glasses and individuals in the control group did their exercises without glasses for 6 weeks. Individuals' visual reaction time, auditory reaction time and target-oriented reaction time were measured with the Human Benchmark test, agility assessment with the T Agility test, anaerobic capacity assessment with the vertical jump test, balance assessment with the Flamingo Balance test and coordination assessment with the Hexagonal Coordination test. The evaluations were made three times, before exercise, 6 weeks after exercise and 10 weeks after exercise.

Detailed Description

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Individuals' visual reaction time, auditory reaction time and target-oriented reaction time were measured with the Human Benchmark test, agility assessment with the T Agility test, anaerobic capacity assessment with the vertical jump test, balance assessment with the Flamingo Balance test and coordination assessment with the Hexagonal Coordination test. The evaluations were made three times, before exercise, 6 weeks after exercise and 10 weeks after exercise.

Conditions

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Stroboscopic Glasses

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

In this study, individuals were evaluated face-to-face at the Beştepe Volleyball Hall of the Turkish Volleyball Federation. Each evaluation lasted 30 minutes. After recording the sociodemographic information of the individuals, they were divided into two groups using a computer numbering system: the stroboscopic glasses group and the control group. The stroboscopic glasses group performed exercises with the glasses. The control group performed exercises without the stroboscopic glasses. The evaluations were conducted three times a week for six weeks, following the players' warm-up exercises. Since only one stroboscopic glasses was used, the evaluations were planned over two days, each lasting 30 minutes. On the first day, reaction time, agility, and anaerobic power were evaluated, respectively; on the second day, coordination and balance were evaluated respectively.
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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stroboscopic glasses group

20 volleyball players using stroboscopic glasses in training

Group Type EXPERIMENTAL

stroboscopic visual training

Intervention Type DEVICE

40 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 is always preferred scientific research about stroboscopic visual training.

Control group

20 volleyball players only exercised

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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stroboscopic visual training

40 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 is always preferred scientific research about stroboscopic visual training.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Being a professional volleyball player
* Not having undergone surgery in the last 6 months
* Not having any chronic, systemic, or neuromuscular disease
* Not having visual, cognitive, or vestibular disorders

Exclusion Criteria

* Female individuals
* Sedentary individuals
* Having visual, cognitive, or vestibular disorders
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

Locations

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Baskent University

Ankara, , Turkey (Türkiye)

Site Status

Baskent University

Ankara, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

References

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Avedesian JM, Covassin T, Baez S, Nash J, Nagelhout E, Dufek JS. Relationship Between Cognitive Performance and Lower Extremity Biomechanics: Implications for Sports-Related Concussion. Orthop J Sports Med. 2021 Aug 24;9(8):23259671211032246. doi: 10.1177/23259671211032246. eCollection 2021 Aug.

Reference Type RESULT
PMID: 34458386 (View on PubMed)

Hulsdunker T, Mierau A. Visual Perception and Visuomotor Reaction Speed Are Independent of the Individual Alpha Frequency. Front Neurosci. 2021 Apr 8;15:620266. doi: 10.3389/fnins.2021.620266. eCollection 2021.

Reference Type RESULT
PMID: 33897344 (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)

Costa E, Gongora M, Bittencourt J, Marinho V, Cagy M, Teixeira S, Nicoliche E, Fernandes I, Machado C, Wienecke J, Ribeiro P, Gupta DS, Velasques B, Budde H. Decrease in reaction time for volleyball athletes during saccadic eye movement task: A preliminary study with evoked potentials. PLoS One. 2024 Jul 3;19(7):e0290142. doi: 10.1371/journal.pone.0290142. eCollection 2024.

Reference Type RESULT
PMID: 38959207 (View on PubMed)

Other Identifiers

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KA24/389

Identifier Type: -

Identifier Source: org_study_id

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