Effects of Oculomotor Exercises on Volleyball Players
Condition: Athlete
Study type: Interventional

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.
    

Intervention name(s): Oculomotor exercise
Intervention type(s): Other
Intervention description(s): While holding the head in the middle position, holding two colored objects in both hands, looking at the object in the right hand without turning the head, counting up to 10 and looking at the object in the left hand and counting up to 10,
While holding a fixed head in the middle position and holding a colored object in the right hand, following the object with the eyes while moving the right hand from right to left without turning the head and returning,
With the head fixed in the middle position, with the right hand on the left, eyes are fixed on the hand-held colored object and turn the head to the right and left.
The head will be fixed in the middle position, the eyes will be fixed on the colored object held in the right or left hand and the arm and the head will be turned to opposite directions.
Allocation: Randomized
Intervention model: Parallel Assignment
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.
Masking: None (Open Label)
Primary purpose: Treatment
Keywords: Volleyball; Balance; Performance; visual acuity