Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics, University of Lisbon, Cruz Quebrada, Portugal.
Department of Bioengineering, LaSEEB - System and Robotics Institute, Instituto Superior Técnico, University of Lisbon, Lisbon, Portugal.
Appl Psychophysiol Biofeedback. 2021 Jun;46(2):195-204. doi: 10.1007/s10484-021-09505-3. Epub 2021 Feb 2.
Neurofeedback training has been an increasingly used technique and is taking its first steps in sport. Being at an embryonic stage, it is difficult to find consensus regarding the applied methodology to achieve the best results. This study focused on understanding one of the major methodological issues-the training session frequency. The aim of the investigation was to understand if there are differences between performing two sessions or three sessions per week in enhancement of alpha activity and improvement of cognition; and in case there are differences, infer the best protocol. Forty-five athletes were randomly assigned to the three-session-training-per-week group, the two-session-training-per-week group and a control group. The results showed that neurofeedback training with three sessions per week was more effective in increase of alpha amplitude during neurofeedback training than two sessions per week. Furthermore, only the three-session-per-week group showed significant enhancement in N-back and oddball performance after training. The findings suggested more condensed training protocol lead to better outcomes, providing guidance on neurofeedback protocol design in order to optimize training efficacy.
神经反馈训练是一种越来越被广泛应用的技术，它在运动领域也开始崭露头角。由于处于萌芽阶段，要找到最佳的应用方法以获得最佳效果的共识还很困难。本研究主要关注理解主要方法学问题之一 - 训练频率。该研究旨在了解每周进行两次或三次训练是否会对提高阿尔法活动和改善认知产生差异；如果存在差异，推断最佳方案。四十五名运动员被随机分配到每周进行三次训练的组、每周进行两次训练的组和对照组。结果表明，每周进行三次训练的神经反馈训练在增加阿尔法振幅方面比每周进行两次训练更有效。此外，只有每周进行三次训练的组在训练后在 N 回和奇数球测试中表现出显著提高。这些发现表明，更密集的训练方案会产生更好的结果，为神经反馈方案设计提供了指导，以优化训练效果。
