The Effect of Neurofeedback on Serve, Spike and Block Jump Skills of a Group of Elite Men Volleyball Players in Iran National Volleyball Team

Volume 1, Issue 1
Summer 2021
Pages 54-64

Document Type : Original Article

Authors

1 Professor , Department of Biomechanics and Sport Injuries, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran. Iran

2 PhD Candidate, Department of Motor Behavior and Sport Psychology, Faculty of Physical Education and Sport Sciences, Tehran University, Tehran, Iran

3 PhD Candidate, Department of Motor Behavior, Faculty of Physical Education and Sport Sciences , Islamic Azad University, Central Tehran Branch, Tehran, Iran

Abstract
The purpose of this study was to determine the effects of Neurofeedback on serve, spike and block jump skills of a group of Iranian elite men volleyball players. To this end, 20 Iranian volleyball players, having been previously invited to the National Iranian Team Training Camps over 3 consecutive years, were selected based on a non-random, subjective sampling method and were divided into two equal-sized experimental and control groups (i.e. 10 per group). Over the course of 21 sessions, the experimental group received neurofeedback training with theta suppression protocol and alpha increase and beta 3 suppression (18-35 Hz) in the first 20 minutes of each session and SMR increase and gamma increase in Cz in the following 10 minutes. While both groups performed the same general and specialized volleyball workouts under the supervision of the respective coach, pre-tests and post-tests were conducted for both groups before and after neurofeedback treatment. Mean and standard deviation were used for statistical description of data; Shapiro-Wilks Normality Test was employed to evaluate the normality of data distribution; and for inferential statistics, multiple analysis of covariance was utilized to control the pre-test effects. Based on the findings of this study, the use of 21 sessions course of neurofeedback training recommends for optimizing the accuracy of elite volleyball players in serve, spike and block jump, As well as in search of analyzed skills, this training is more effective on blocks jump more than other skills.

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Subjects
  • Receive Date 02 July 2021
  • Revise Date 01 August 2021
  • Accept Date 29 August 2021