title: Beta and alpha electroencephalographic activity changes after acute exercise.
abstract: Exercise has been widely related to changes in cortical activation and enhanced brain functioning. Quantitative electroencephalography (qEEG) is frequently used to investigate normal and pathological conditions in the brain cortex. Therefore, the aim of the present study was to observe absolute power alterations in beta and alpha frequency bands after a maximal effort exercise. Ten healthy young volunteers were submitted to an eight-minute resting EEG (eyes closed) followed by a maximal exercise test using a mechanical cycle ergometer. Immediately after the exercise, another identical eight-minute EEG was recorded. Log transformation and paired student's t-test compared the pre and post exercise values (p<0.05). Results indicated a significant absolute power increase in beta after exercise at frontal (Fp1, F3 and F4) and central (C4) areas, which might be related to increased cortical activation.
authors: Laboratório de Mapeamento Cerebral e Integração Sensório-Motora, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, 22290-140 Rio de Janeiro, RJ, Brazil.
authors: Helena
authors: H
authors: Moraes
authors: Camila
authors: C
authors: Ferreira
authors: Andréa
authors: A
authors: Deslandes
authors: Mauricio
authors: M
authors: Cagy
authors: Fernando
authors: F
authors: Pompeu
authors: Pedro
authors: P
authors: Ribeiro
authors: Roberto
authors: R
authors: Piedade
mesh_terms: D000328:Adult; D000513:Alpha Rhythm; D001611:Beta Rhythm; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D004594:Electrophysiology; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D005625:Frontal Lobe / Q000502:physiology; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D010807:Physical Endurance / Q000502:physiology*; D012146:Rest / Q000502:physiology