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Previous issue date: 2016-08-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Introdu??o: A baixa ader?ncia na maior parte da popula??o em programas de atividade f?sica tem sido associada a experi?ncias emocionais de desprazer provocada pela intensidade do exerc?cio f?sico. Estudos te?ricos prop?em o controle inibit?rio como elemento fundamental para a regula??o emocional de prazer durante o exerc?cio executado em diferentes intensidades. No entanto, ainda ? desconhecida a rela??o do controle inibit?rio com as respostas afetivas acerca da intensidade do exerc?cio. Objetivo: Verificar o efeito da intensidade do exerc?cio incremental m?ximo sobre o controle inibit?rio, afeto, controle auton?mico card?aco e oxigena??o do c?rtex pr?-frontal. M?todo: Trinta e sete adultos jovens, sedent?rios, participaram de forma randomizada de duas condi??es experimentais (controle e exerc?cio). Na condi??o exerc?cio, os participantes realizaram um teste incremental m?ximo em cicloerg?metro com concomitante e cont?nua a avalia??o da oxigena??o do CPF, variabilidade da frequ?ncia card?aca (VFV), controle inibit?rio (teste de stroop) e escalas de afeto e pensamento associativo e dissociativo (PAD). Na condi??o controle, os volunt?rios realizaram as mesmas avalia??es da condi??o exerc?cio, mas sem pedalar no cicloerg?metro. O par?metro de refer?ncia dos protocolos experimentais para a intensidade foi determinado pelo limiar ventilat?rio (LV). Foi utilizada a ANOVA two away para medidas repetidas com ajuste de Bonferroni, para comparar as condi??es (controle e exerc?cio) e os momentos (oito intensidades). Em seguida, foi realizada a correla??o de Pearson para verificar as correla??es do sentimento afetivo e controle inibit?rio com PAD, VFC e oxigena??o do CPF. Resultados: (I) a alta intensidade do exerc?cio promoveu decl?nio no controle inibit?rio, sentimento de desprazer, aumento da atividade simp?tica e oxigena??o CPF. (II) o incremento da intensidade promoveu correla??o entre o decl?nio do controle inibit?rio (maior n?mero de erro) com o aumento do PAD (r=0,77) e da oxigena??o CPF (DHb: r=0,87; Hbt: r=0,75). (III) o controle inibit?rio analisado pelo score efficience inverse, foi pior em alta e baixa intensidade quando comparada com seu comportamento na intensidade moderada Conclus?o: Intensidades acima do LV apresenta decl?nio na fun??o inibit?ria e desprazer. O desprazer foi relacionado com aumentos do PAD, da desoxihemoglobina no CPF e da atividade simp?tica. Os nossos resultados suportam que a intensidade do exerc?cio pode influenciar o controle inibit?rio e est? associado aos sentimentos afetivos. / Introduction: Low grip on most of the population in physical activity programs has been linked to emotional experiences of displeasure caused by the intensity of exercise. Theoretical studies suggest inhibitory control as a key element in regulating emotions of pleasure during exercise performed at different intensities. However, it is still unknown the relationship of inhibitory control with affective responses about the intensity of the exercise. Objective: To analyze the effect of the intensity of the maximum incremental exercise on the inhibitory control, affection, autonomic control and oxygenation of the PFC. Method: Thirty-seven young adults, sedentary, participated randomly in two experimental conditions (control and exercise). In the exercise condition, participants performed a maximal incremental test on a cycle ergometer with concurrent and continuous evaluation of oxygenation of the PFC, heart rate variability (HRV), inhibitory control (Stroop test), affection scales and associative/dissociative thinking (ADT). In the control condition, the volunteers performed the same evaluations of the exercise condition, but without pedaling a cycle ergometer. The benchmark of the experimental protocols for the intensity was determined by the ventilatory threshold (VT). ANOVA was used for repeated measures two away with Bonferroni adjustment, to compare the conditions (control and exercise) and times (eight intensities). Then the Pearson correlation was performed to verify the correlations of emotional feeling and inhibitory control with ADT, HRV and oxygenation of the PFC. Results: (I) high intensity exercise promoted decline in inhibitory control, unpleasantness feeling, increased sympathetic activity and cerebral oxygenation. (II) promoted the increase of the intensity correlation between the decline in inhibitory control (highest number of error) with increasing ADT (r=0.77) and cerebral PFC (DHB: r=0.87; HBT: r=0.75). (III) inhibitory control analyzed by the score efficience inverse, was worse in high and low intensity compared to their behavior at moderate intensity. Conclusion: Intensities above the VT provides decline in inhibitory function and displeasure. The displeasure was related to increases in ADT, the deoxyhemoglobin PFC and sympathetic activity. Our results support that the intensity of exercise can influence the inhibitory control and is associated with emotional feelings.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/21747 |
| Date | 30 August 2016 |
| Creators | Silva, Weslley Quirino Alves da |
| Contributors | 24887093870, Okano, Alexandre Hideki, 69806217934, Chao, Cheng Hsin Nery, 58413774187, Ara?jo, Draulio Barros de, 50554310163, Deslandes, Andrea Camaz, 93159412768, Elsangedy, Hassan Mohamed, Fontes, Eduardo Bodnariuc |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM EDUCA??O F?SICA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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