Banca de DEFESA: FELIPE DE AZEVEDO PESSOA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FELIPE DE AZEVEDO PESSOA
DATE: 21/12/2020
TIME: 14:30
LOCAL: Defesa remota
TITLE:

INFLUENCE OF MENTAL FATIGUE ON AFFECTIVE RESPONSES AND AUTOMATIC EVALUATIONS ABOUT PHYSICAL EXERCISE.

KEY WORDS:

Physical Exercise; Mental Fatigue; Affection; Implicit Association; Affective-Reflective Theory

PAGES: 30
BIG AREA: Ciências da Saúde
AREA: Educação Física
SUMMARY:

Introduction: Studies show that decision making about exercising or not can be influenced unconsciously by affective memories (automatic affective assessments). These memories are formed from the feeling of pleasure or displeasure (affective valance) felt in previous experiences. In general, there is a direct relationship between perceived of effort (PSE) and affect during the exercise. It is known that the state of mental fatigue can increase the PSE, however, the possible influence of mental fatigue on affect and consequently on automatic affective evaluations has not been studied until now. Objective: To investigate the influence of mental fatigue on affective response during physical exercise, and the effects of exercising in this mental state on automatic affective evaluation about physical exercise. Methods: This is a study with an experimental design, crossed, randomized and balanced. The sample consisted of 12 young adults (6 women and 6 men; age: 24.9 ± 2.9; BMI: 24.2 ± 2.6) insufficiently physically active (did not reach the minimum ACSM recommendations for moderate exercise / in the last 3 months). The study was divided into three separate visits. In the first visit participants were familiarized with the affect and RPE scales, obtained the automatic affective evaluations (using implicit association test - IAT) and perform the maximum effort test. The second and third visits corresponded to the experimental and control conditions (carried out in a randomized and balanced order). In the experimental condition, the volunteers were submitted to 30 minutes of demanding cognitive test before performing 20 minutes of moderate physical exercise. In the control condition, the volunteers watched 30 minutes of a neutral documentary before the 20 minutes of exercise. The level of mental fatigue was assessed using the visual analog fatigue scale at the beginning of each session, after the stroop test, documentary and the physical test. Affect and RPE were assessed every two minutes during the 20 minutes of physical exercise. The automatic affective evaluations were assessed using the implicit association test on the first visit, before the stroop test and the documentary and 5 minutes after the end of physical exercise in both conditions. Two-way ANOVA for repeated measures (condition x time) and Bonferroni's post-hoc were used to compare the level of mental fatigue between the two conditions before and after treatment (cognitive test and documentary film) and to compare the association implicit in 3 moments (on the first visit, before and after each session). To assess the difference in affect and RPE between conditions during exercise, the paired T test was used (for non-parametric data, the Wilcoxon test was used). The level of significance was set at p <0,05. Results: An effect of time was observed (F(1,11) = 8,12, p <0,01) and condition x time interaction for mental fatigue (F(1,11) = 4,40, p = 0,04). The level of mental fatigue increased only after the cognitive test performed in the experimental condition (p<0,01), and this increase was significantly different from the control condition (mean difference = 2,40; p = 0,04). There was also a significant difference in affect (experimental: 0,52 ± 2,00 vs control: 2,08 ± 1,66; Z = -2,40; p = 0,01) and RPE (experimental: 12.08 ± 1.83 vs control: 10,93 ± 1,56; t (11) = 2,28; p = 0,04) during exercise between conditions. There was no effect of time and time and group interaction for the implicit association. Conclusion: The state of mental fatigue actually decreases the perception of pleasure during exercise, however, this decrease did not have an acute influence on automatic affective assessments about physical exercise.

BANKING MEMBERS:
Presidente - 1989744 - HASSAN MOHAMED ELSANGEDY
Interno - 2682821 - EDUARDO CALDAS COSTA
Externo à Instituição - DANIEL GOMES DA SILVA MACHADO - UEL
Externo à Instituição - KLEVERTON KRINSKI - UENP
Externo à Instituição - TONY MEIRELES DOS SANTOS - UFPE