Efeitos de fadiga mental no treinamento resistido: uma revisão sistemática atualizada

Abstract

Mental fatigue is a psychobiological state characterized by tiredness or lack of energy to perform a subsequent task resulting from prolonged high cognitive demand. Resistance training, in turn, which considers training volume as an important variable in its prescription, is affected by mental fatigue as it negatively influences performance. Therefore, the present study aimed to explore the effects of mental fatigue on resistance training, incorporating updated references. Thus, it is a systematic review characterized as a bibliographic research of existing literature. To search for articles, three electronic databases (Cochrane Library, PubMed/MEDLINE, and Web of Science) were used. Additionally, boolean operators "OR" and "AND" were employed, along with terms related to mental fatigue and resistance training. Only randomized controlled trials (RCTs) and non-randomized controlled trials were included in the study, based on the PICOS approach. The PEDro scale was used to assess the methodological quality of the studies. After the article selection process, twelve articles were chosen. It was concluded that mental fatigue can negatively influence subjective perception of effort and, consequently, the number of repetitions performed in a training session.