Banca de DEFESA: FABIANO HENRIQUE RODRIGUES SOARES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : FABIANO HENRIQUE RODRIGUES SOARES
DATA : 28/06/2019
HORA: 08:30
LOCAL: Sala de Reuniões e Videoconferência do DSC
TÍTULO:

PSYCHOPHYSIOLOGICAL AND INFLAMMATORY RESPONSES TO ACUTE AEROBIC EXERCISE AT SELF-SELECTED INTENSITY

PALAVRAS-CHAVES:

obesity; aerobic exercise; self-selected intensity; feeling scale; inflammation; muscle damage.

PÁGINAS: 95
GRANDE ÁREA: Ciências da Saúde
ÁREA: Medicina
RESUMO:

The prevalence of obesity has increased worldwide over the past three decades. The burden of obesity-related diseases is heavier among women, since obesity and its degree of severity are higher in women than in men of all age groups. Regular physical activity is the basis of behavioral treatment of obesity. However, overweight and obese individuals tend to avoid physical activity, not attending to the imposed regimes, with dropout rates ranging from 71% to almost 100%. Physical activity performed at self-selected intensity could represent a valid alternative to the imposed regimes to improve adherence. This study was divided into two stages. In the first step, a cross-sectional descriptive study was carried out to investigate to what extent anthropometric measures could identify the autonomic dysfunction of cardiac control with 65 sedentary women (18 to 45 years of age) categorized as eutrophic, overweight or obese. This study generated one article. In the second step, we performed an experimental study with a randomized controlled trial to evaluate the acute effects of aerobic exercise at self-selected intensity on psychophysiological markers, stress, inflammation, muscle damage and pain. Healthy inactive women with obesity (n = 46; age range 18-45 years) exercised for 60 min on treadmill at an imposed or self-selected velocity that could be changed every 5 minutes. In the observational article, we concluded that anthropometric measurements of obesity were associated with HRV and with autonomic imbalance of cardiac control. In the first article of the experimental phase, we identified that inactive women with obesity reach moderate to vigorous intensity when exercising in self-selected velocity, feeling positive affection throughout the session. The perceived exertion goes from "light" to "moderate" for most of the session. There is a decrease in serum cortisol with theoretical relation with positive affection. A peak of biomarkers of muscle damage associated with muscle pain occurred 24 hours after the intervention and returned to pre-exercise values after 48 hours. On the other hand, there is unclear effect of the exercise session on acute phase inflammatory biomarkers. In the second article of the experimental phase we concluded that a moderate exercise in self-selected intensity is related with higher intensity, better affective responses and a similar reduction in stress level when compared to the imposed intensity exercise, which may influence directly the adherence to physical activity, when it comes to overweight and obese women.

MEMBROS DA BANCA:
Externo à Instituição - AMILTON DA CRUZ SANTOS - UFPB
Externa ao Programa - 2495705 - GRASIELA PIUVEZAM
Presidente - 6346130 - MARIA BERNARDETE CORDEIRO DE SOUSA
Interno - 2626634 - PAULO MOREIRA SILVA DANTAS
Externo à Instituição - RADAMES MACIEL VITOR MEDEIROS - UNI-RN