The prevalence of overweight and obesity is increasing worldwide, which has been associated with poor cognitive outcomes. Participating in regular physical exercise may also improve cognition, and levels of brain-derived neurotrophic factor (BDNF), but the optimal exercise prescription remains to be elucidated. The purpose of the present study is to compare the effects of moderate intensity continuous training (MICT) and high intensity interval training (HIIT) on cognition, and serum BDNF levels in middle-aged and overweight men. Twenty-five sedentary, overweight men participated in the 8-week training intervention. Subjects were randomized into MICT (n = 12) or HIIT (n = 13) and performed exercise sessions 3x/week for 8-weeks. Cognitive function, and serum BDNF levels were assessed pre-and post-intervention. Statistical analysis was carried out using the Graph Pad Prism 7.0, and the level of significance was set at 5%. Significant improvements were observed in cognitive test scores, and BDNF levels in MICT and HIIT groups (p < 0.05). There were no significant differences in cognitive function between MICT and HIIT. The present study implicates that 8 weeks of MICT or HIIT may be a very useful non-pharmacological treatment option to improve cognitive function, and BDNF levels in middle-aged overweight men.
OBJECTIVE: Body mass index (BMI) values of 25 kg/m 2 or more have been associated with poor cognitive outcomes, reduced health-related quality of life (HRQoL), and mental health disorders. Participating in regular exercise may improve these negative outcomes. However, the optimal exercise prescription remains to be clarified. The purpose of the present study is to compare the effects of moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) on HRQoL, depression, and anxiety levels in middle-aged overweight men. METHODS: Twenty-five sedentary, overweight men participated in the 8-week training intervention. Subjects were randomized into MICT or HIIT and performed exercise sessions three times per week for 8 weeks. Participants answered the Physical Activity ReadinessQuestionnaire, the Short Form-36 survey, the Beck Depression Inventory-II, and the Beck Anxiety Inventory. Statistical analysis was carried out using the GraphPad Prism 7.0, and the level of significance was set at 5% to quantitative variables. RESULTS: HRQoL scores were enhanced to all domains of both the groups. MICT and HIIT did not significantly change the depression levels in middle-aged overweight men (p>0.05). Nevertheless, MICT was capable to reduce the anxiety levels in middle-aged overweight men (p<0.05). However, there was not a significant change in the anxiety levels at the HIIT group.CONCLUSIONS: HIIT may be a useful treatment to improve the HRQoL, but MICT alone can positively impact the anxiety levels in middleaged overweight men.
Introdução: O envelhecimento vem aumentando ao longo das últimas décadas, com isso se aumenta o risco de declínio cognitivo, diminuição funcional e piora da qualidade de vida. A prática de exercício físico ganha destaque por seu caráter preventivo e/ou terapêutico, de custo baixo e acessível. A maioria dos estudos utilizam períodos longos de intervenção (6 meses ou mais), com exercícios aeróbios ou resistidos, no entanto são escassos os trabalhos que utilizam da metodologia de treinamento em circuito. O presente estudo avaliou os efeitos de 12 semanas de um programa de treinamento em circuito sobre aspectos funcionais, funções cognitivas e qualidade de vida de idosos. Metodologia: Vinte idosos foram submetidos a um programa de treinamento em circuito por um período de 12 semanas e avaliados no período pré e pós intervenção. Foram utilizados: questionário SF-36, Mini Exame do Estado Mental (MEEM), Time Get up and go (TUG), Teste de sentar e levantar, Teste de flexão de antebraço, Teste de velocidade de marcha de 6 minutos. Resultados: Os dados obtidos mostraram uma melhora de 26% na média do SF-36, 7% na velocidade da marcha para o teste de 6 minutos, e aumento de 1,6 pontos para o mini mental. Conclusão: O treinamento físico em circuito foi capaz de melhorar qualidade de vida, funcionalidade e cognição em idosos.
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