Navegando por Autor "Medeiros, Ítalo Freire"

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Acute effects of high-intensity interval and moderate-intensity continuous exercise on GLP-1, appetite and energy intake in obese men: a crossover trial
(Nutrients, 2018-07) Fayh, Ana Paula Trussardi; Matos, Victor Araújo Ferreira; Souza, Daniel Costa de; Santos, Victor Oliveira Albuquerque dos; Medeiros, Ítalo Freire; Browne, Rodrigo Alberto Vieira; Nascimento, Paulo Ricardo Porfírio do; Marinho, Cristiane da Silva Ramos; Serquiz, Alexandre Coelho; Costa, Eduardo Caldas
This study investigated the effect of high-intensity interval (HIIE) and moderate-intensity continuous exercise (MICE) on glucagon-like peptide 1 (GLP-1), appetite and energy intake (EI) in obese men. In a randomized crossover trial, 12 participants (28.4 ± 2.6 years, 35.5 ± 4.5 kg/m2 , 39.8 ± 2.2% body fat) performed: (I) Control (CON, no exercise); (II) MICE (20 min, 70% of maximal heart rate) and (III) HIIE (10 × 1 min at 90% of maximal heart rate with 1 min recovery). GLP-1 and appetite were assessed at: (I) PRE: pre-exercise; (II) POST: immediately post-exercise; (III) POST-1 h: 1 h post-exercise. EI was assessed after an ad libitum meal offered 1 h post-exercise and over 24 h. There was a significant time × condition interaction for GLP-1 (p = 0.035). Higher GLP-1 levels in MICE vs. CON (p = 0.024) and a trend for HIIE vs. CON (p = 0.069) POST-1h was found. Hunger was reduced immediately post-HIIE compared to CON (p < 0.01), but was not sustained POST-1 h (p > 0.05). EI did not differ between the sessions 1 h post-exercise or over 24H (p > 0.05). In summary, although MICE increased GLP-1 levels POST-1h and HIIE induced a transient reduction in hunger, both exercise protocols did not impact EI in obese men
Efeito do exercício físico de diferentes intensidades sobre os níveis de grelina e o consumo alimentar em adultos obesos sedentários
(Universidade Federal do Rio Grande do Norte, 2018-06-19) Medeiros, Ítalo Freire; Fayh, Ana Paula Trussardi; Victor Araujo Ferreira Matos; de Souza, Daniel Costa; Rüegg, Rodrigo Albert Baracho
Objetivo: Comparar o efeito entre uma sessão de exercício intervalado de alta-intensidade (EIAI) e exercício contínuo de moderada-intensidade (ECMI) sobre os níveis de grelina e consumo alimentar de homens com obesidade. Metodologia: em um ensaio clinico randomizado com delineamento cruzado, 10 indivíduos (31,2 ± 6,4 anos; 35,5 ± 4,1 kg/m²; 40,1 ± 2,1 % gordura) realizaram as seguintes intervenções: EIAI ( 10 x 1 min com 90% da velocidade máxima e intercalado por 1 min de recuperação ativa em 30% da velocidade maxima; ECMI (20min 65-75% da frequência máxima) com uma semana de intervalo entre as sessões. Foram dosados os níveis de grelina total em três momentos: 1) pré-exercício, 2) pós-exercício e 3) 1h pós-exercício. O consumo energético foi avaliado por refeição ad libitum, oferecida 1 hora pós exercício e por um registro alimentar estimado nas 24 horas seguintes. Resultados: Embora não foi observado uma interação tempo x condição [F(1, 18)= 0,066, p= 0,859, η2p=0,007] significativa nos níveis de grelina, houve um efeito significativo no tempo [F(2,18)= 6,016, p= 0,010, η2p= 0,401, sendo encontrado uma tendência de redução nos níveis de grelina entre os momentos pré vs pós-1H (p = 0,071) em ambas as condições. Não foram observadas diferenças significativas no consumo energético entre as condições na refeição ad libitum t(9) = 0,987, p = 0,349 e ao longo do dia da sessão (24 horas): t(9) = 1,61, p = 0,140). Conclusão: uma única sessão de diferentes intensidades de exercício (ECMI e EIAI) parecem apresentar um comportamento semelhante nos níveis de grelina e consumo alimentar em homens obesos sedentários.
Effects of high-intensity interval and moderate-intensity continuous exercise on inflammatory, leptin, iga, and lipid peroxidation responses in obese males
(Frontiers in Physiology, 2018-05) Fayh, Ana Paula Trussardi; Souza, Daniel Costa de; Matos, Victor Araújo Ferreira; Santos, Victor Oliveira Albuquerque dos; Medeiros, Ítalo Freire; Marinho, Cristiane da Silva Ramos; Dorneles, Gilson Pires; Peres, Alessandra; Muller, Carlos Henrique de Lemos; Krause, Maurício; Nascimento, Paulo Ricardo Porfírio do; Costa, Eduardo Caldas
Purpose: To compare the effects of a single high-intensity interval exercise session (HIIE) with a moderate-intensity continuous exercise session (MICE) on the inflammatory profile, IgA levels, and lipid peroxidation in sedentary obese males. Methods: Ten sedentary obese men (age 28.5 ± 2.7 years; BMI 35.9 ± 4.9 kg/m2; body fat 40.6 ± 2.0%) performed three experimental sessions, on separate days with 1 week wash-out period between interventions, according to a randomized order: (1) HIIE: 10 × 60 s at 90% of the HRmax alternated by 60 s of active recovery; (2) MICE: 20 min at 70% of the HRmax; (3) Rest—control. Blood and saliva samples were collected before, immediately after and 60 min after the end of each session in order to analyse serum levels of cytokines, IgA, and lipoperoxidation markers. Results: Leptin levels decreased immediately after HIIE (P = 0.033) and was different from the MICE (P = 0.025). IFN-γ levels were reduced immediately after (P = 0.032) and 60 min after HIIE (P = 0.003) compared to baseline, and it also increased IL-4 levels immediately after exercise (P = 0.007) compared to resting values. MICE promoted an increase in IFN-γ levels immediately after exercise (P = 0.025) and 60 min after exercise (P = 0.004) in relation to baseline. Both exercise conditions increased IL-6 levels up to 60 min after exercise (P < 0.05). The IFN-γ/IL-4 ratio decreased immediately after (P = 0.002) and 60 min after HIIE (P = 0.005) in relation to pre-exercise. No changes were found for IgA-S and TBARS for any of the conditions. Conclusion: A single HIIE session is able to decrease IFN-γ/IL-4 ratio, indicating an anti-inflammatory response, without alterations in the function of the mucosal immune system and lipoperoxidation. On the other hand, a brief session of MICE induced changes in the pattern of cytokines associated with increased cellular immune function
A single session of low-volume highintensity interval and moderateintensity continuous exercise elicits a transient reduction in ghrelin levels, but not in post-exercise energy intake in obese men
(Archives of Endocrinology and Metabolism, 2021) Fayh, Ana Paula Trussardi; Matos, Victor Araújo Ferreira; Souza, Daniel Costa de; Browne, Rodrigo Alberto Vieira; Santos, Victor Oliveira Albuquerque dos; Medeiros, Ítalo Freire; Nascimento, Paulo Ricardo Porfírio do; Costa, Eduardo Caldas
Objective: This study investigated the acute effects of high-intensity interval (HIIE) and moderateintensity continuous (MICE) exercise on ghrelin levels in obese men. Subjects and methods: Atotal of 10 obese men (age 27.6 ± 1.8 years, body mass index 35.4 ± 4.5 kg/m², body fat 39.9 ± 2.1%)performed two exercise sessions in a randomized order: HIIE (10 x 1 min intervals at 90% of themaximal heart rate [HRmax] interspersed by 1 min of active recovery) and MICE (20 min at 70% ofthe HRmax). Ghrelin levels were assessed pre-, post- and 1h post-exercise, and energy intake wasassessed 1h post-exercise through an ad libitum meal. Results: HIIE and MICE showed a trend todecrease ghrelin levels immediately post-exercise (-14.1 ± 21.6% and -9.6 ± 23.8%, respectively, p= 0.07) and decreased 1h post-exercise (-12.7 ± 31.8% and -13.8 ± 21.7%, respectively, p < 0.05). Nochanges were observed for post-exercise energy intake (p > 0.05). There was a positive correlationbetween the change in ghrelin levels and post-exercise energy intake only for HIIE (r = 0.63, p =0.05). Conclusion: In summary, a single session of HIIE and MICE elicits a reduction on ghrelin levelswithout changing post-exercise energy intake in obese men

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Navegando por Autor "Medeiros, Ítalo Freire"