Clinical trial NCT04852549: Effects of Oculomotor Exercises on Volleyball Players
Official title: Effects of Oculomotor Exercises on Balance, Dynamic Visual Acuity and Performance in Volleyball Players
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Athlete
Keywords: Volleyball
Balance
Performance
visual acuity
Lead sponsor: Istanbul Medipol University Hospital
Sponsor class: OTHER
First posted: 2021-04-21
Enrollment: 52
Sex: FEMALE
Minimum age (years): 16
Maximum age (years): 26
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: The group of the cases meeting the criteria was determined by the numbers determined by the randomizer program in the "Research Randomiser" web site.
Primary purpose: TREATMENT

Brief summary: The researcher aimed to investigate the effects of oculo-motor exercises on dynamic visual acuity, balance and performance of volleyball players whose performance can be improved with visual skills training.

H0: Oculo-motor exercises applied to volleyball players are effective on dynamic visual acuity, balance and performance.

H1: Oculo-motor exercises have no effect on dynamic visual acuity, balance and performance in volleyball players.

Detailed description: This study on the Effect of Oculo-Motor Exercises on Dynamic Visual Acuity, Balance and Performance in Volleyball Players was ethically approved by the "Istanbul Medipol University Non-Invasive Ethics Committee" with file number 10840098-604.01.01-E.14171 on 16.04.2020. The study included 52 female volleyball players aged 16-26 who played participants for at least 3 years without interruption. Power analysis was performed using the 3.1.9.5 version of the G-Power program to determine the number of individuals to be included in the study. Type-1 was accepted as 0.05 and power ratio as 80%. Effect size 0.8 was taken. According to the results of the power analysis, the number of participants required to be included in the study was determined as 52.

Participants; Age, height, weight, gender, body mass index, dominant side, position played in volleyball, number of weekly training, daily training time, previous sports injuries, education status, smoking and alcohol use, accompanying illnesses were questioned. FBT and YBT were used for balance evaluations, and Nelson's Hand Reaction Test was used for reaction times. In addition, Dynamic Visual Acuity and Vertical Jumping distances were evaluated twice before and after treatment.

Participants included in the study, the control group continued their routine ball training after the evaluations, while the intervention group continued with the oculo-motor training for 4 weeks, 6 days a week, in the morning and evening, for 10 minutes, 2 times a day, in addition to normal ball training. they did the exercises. While doing the exercises, individuals were taught to focus on the purpose they held in their hands, move their head, and aim fast enough to see the image clearly. Two repetitions each week were added to the exercise numbers. Ten seconds rest between two sets and five seconds rest between movements.

Eligibility criteria: Inclusion Criteria:

* Being in the age range of 16-26
* Playing licensed volleyball for at least 3 years without interruption
* Have normal vision and hearing

Exclusion Criteria:

* Having a direct blow to the lower or upper extremity in the past month
* People with musculoskeletal disorders may experience balance (forward head posture).
* Refractive defects
* History of ankle fracture
* Double-sided ankle sprain
* Vision problems
* History of lower extremity surgery in the last 6 months

Primary outcomes:
measure: Balance
timeFrame: The evaluation will be made after 4 weeks of training.
measure: Reaction time
timeFrame: The evaluation will be made after 4 weeks of training.
measure: Dynamic visual acuity
timeFrame: The evaluation will be made after 4 weeks of training.
measure: Vertical jump
timeFrame: The evaluation will be made after 4 weeks of training.
Secondary outcomes:
Other outcomes:
Locations:
city: İstanbul
country: Turkey
facility: Elif Aleyna Yazgan
Study officials:
affiliation: İstanbul Medipol University
name: Pınar Kaya Ciddi
role: STUDY_DIRECTOR
References: