HAMILTON AUGUSTO ROSCHEL DA SILVA
Projetos de Pesquisa
Unidades Organizacionais
EFE, EEFE - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina
119 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 119
- Does Exclusive Consumption of Plant-based Dietary Protein Impair Resistance Training-induced Muscle Adaptations?(2019) HEVIA-LARRAIN, Victoria; LONGOBARDI, Igor; LINS, Alan F.; PEREIRA, Rosa M.; ARTIOLI, Guilherme; PHILLIPS, Stuart M.; GUALANO, Bruno; ROSCHEL, Hamilton
- Creatine supplementation for older adults: Focus on sarcopenia, osteoporosis, frailty and Cachexia(2022) CANDOW, Darren G.; CHILIBECK, Philip D.; FORBES, Scott C.; FAIRMAN, Ciaran M.; GUALANO, Bruno; ROSCHEL, HamiltonSarcopenia refers to the age-related reduction in strength, muscle mass and functionality which increases the risk for falls, injuries and fractures. Sarcopenia is associated with other age-related conditions such as osteoporosis, frailty and cachexia. Identifying treatments to overcome sarcopenia and associated conditions is important from a global health perspective. There is evidence that creatine monohydrate supplementation, primarily when combined with resistance training, has favorable effects on indices of aging muscle and bone. These musculoskeletal benefits provide some rationale for creatine being a potential intervention for treating frailty and cachexia. The purposes of this narrative review are to update the collective body of research pertaining to the effects of creatine supplementation on indices of aging muscle and bone (including bone turnover markers) and present possible justification and rationale for its utilization in the treatment of frailty and cachexia in older adults.
- Juvenile fibromyalgia syndrome: Blunted heart rate response and cardiac autonomic dysfunction at diagnosis(2016) MAIA, Magda M.; GUALANO, Bruno; SA-PINTO, Ana L.; SALLUM, Adriana M. E.; PEREIRA, Rosa M. R.; LEN, Claudio A.; TERRERI, Maria T. A.; BARBOSA, Cassia M.; ROSCHEL, Hamilton; SILVA, Clovis A.Objective: To assess aerobic capacity and cardiac autonomic modulation in juvenile fibromyalgia syndrome (JFM) patients at diagnosis in response to graded exercise text. Methods: A multicenter cross-sectional study included 25 JFM patients and 25 healthy controls. Both groups participated only in physical education classes at school. A treadmill graded cardiorespiratory test was performed and the heart-rate (HR) response during exercise was evaluated by the chronotropic reserve (CR). Pain, functional ability, and health-related quality of life (HRQL) were assessed. Results: The median current age was similar in JFM and controls (15 vs. 15 years, p = 0.890), as well as body mass index (p = 0.332), female gender (p = 1.000), and Tanner stages (p = 0.822). The medians of HRQL parameters (total score/physical health/psychosocial health) were significantly lower in JFM vs. controls according to patient and parent self-reports (p < 0.001). The median of peak HR [181 (150-198) vs. 197 (181-202) bpm, p < 0.001], chronotropic reserve [84 (53-98) vs. 99 (84-103)%, p < 0.001], and resting to peal< [96 (65-181) vs. 127 (61-185) bpm, p = 0.010] were significantly lower in JFM compared to controls. The median of Delta EIRR1 [15 (3-39) vs. 35 (9-52) bpm, p < 0.0011, Delta FIRR2 [37 (20-57) vs. 51 (32-94) bpm, p < 0.001], peak VO2 [32.34 (24.24-39.65) vs. 36A (28.56-52.71) ml/kg/min, p = 0.005], peak speed [5 (4-6.3) vs. 5.9 (4.0-6.3) mph, p = 0.001], time to exhaustion [11.5 (8.5-14.5) vs. 14 (11-18) min, p < 0.0011, and working capacity on power [3.37 (2.04-5.6) vs. 3.89 (2.91-6.55) W/kg, p = 0.006] were significantly lower in JFM compared to controls. The frequency of chronotropic incompetence (<= 80%) was significantly higher in JFM vs. controls (p = 0.0006). Conclusions: This study identified chronotropic incompetence and delayed HR recovery in JFM patients, indicating autonomic dysfunction. Aerobic exercise training should be considered in all JFM patients and may improve cardiac autonomic impairment, thus reducing cardiovascular risk.
- Exercise-Induced Increases in Insulin Sensitivity After Bariatric Surgery Are Mediated By Muscle Extracellular Matrix Remodeling (vol 69, pg 1675, 2020)(2021) DANTAS, Wagner S.; ROSCHEL, Hamilton; MURAI, Igor H.; GIL, Saulo; DAVULURI, Gangarao; AXELROD, Christopher L.; GHOSH, Sujoy; NEWMAN, Susan S.; ZHANG, Hui; SHINJO, Samuel K.; NEVES, Willian das; MEREGE-FILHO, Carlos; TEODORO, Walcy R.; CAPELOZZI, Vera L.; PEREIRA, Rosa Maria; BENATTI, Fabiana B.; SA-PINTO, Ana L. de; CLEVA, Roberto de; SANTO, Marco A.; KIRWAN, John P.; GUALANO, Bruno
- GLUT4 translocation is not impaired after acute exercise in skeletal muscle of women with obesity and polycystic ovary syndrome(2015) DANTAS, Wagner Silva; MARCONDES, Jose Antonio Miguel; SHINJO, Samuel Katsuyuki; PERANDINI, Luiz Augusto; ZAMBELLI, Vanessa Olzon; NEVES, Willian Das; BARCELLOS, Cristiano Roberto Grimaldi; ROCHA, Michele Patrocinio; YANCE, Viviane Dos Reis Vieira; PEREIRA, Renato Tavares Dos Santos; MURAI, Igor Hisashi; PINTO, Ana Lucia De Sa; ROSCHEL, Hamilton; GUALANO, BrunoObjectiveThe aim of this study was to examine the effects of acute exercise on insulin signaling in skeletal muscle of women with polycystic ovary syndrome (PCOS) and controls (CTRL). MethodsFifteen women with obesity and PCOS and 12 body mass index-matched CTRL participated in this study. Subjects performed a 40-min single bout of exercise. Muscle biopsies were performed before and 60 min after exercise. Selected proteins were assessed by Western blotting. ResultsCTRL, but not PCOS, showed a significant increase in PI3-k p85 and AS160 Thr 642 after a single bout of exercise (P=0.018 and P=0.018, respectively). Only PCOS showed an increase in Akt Thr 308 and AMPK phosphorylation after exercise (P=0.018 and P=0.018, respectively). Total GLUT4 expression was comparable between groups (P>0.05). GLUT4 translocation tended to be significantly higher in both groups after exercise (PCOS: P=0.093; CTRL: P=0.091), with no significant difference between them (P>0.05). ConclusionsA single bout of exercise elicited similar GLUT4 translocation in skeletal muscle of PCOS and CTRL, despite a slightly differential pattern of protein phosphorylation. The absence of impairment in GLUT4 translocation suggests that PCOS patients with obesity and insulin resistance may benefit from exercise training.
- Body Composition and Frailty: The Role of Adiposity(2023) FERRIOLLI, Eduardo; ROSCHEL, H.
conferenceObject Effects Of Exercise Training On Strength And Functionality In Obese Subjects Undergoing Bariatric Surgery: Preliminary Findings(2018) ROSCHEL, Hamilton; GIL, Saulo; DANTAS, Wagner S.; MURAI, Igor H.; MEREGE FILHO, Carlos; SANTO, Marco A.; CLEVA, Roberto; GUALANO, Bruno- Placebo in sports nutrition: a proof-of-principle study involving caffeine supplementation(2017) SAUNDERS, B.; OLIVEIRA, L. F. de; SILVA, R. P. da; PAINELLI, V. de Salles; GONCALVES, L. S.; YAMAGUCHI, G.; MUTTI, T.; MACIEL, E.; ROSCHEL, H.; ARTIOLI, G. G.; GUALANO, B.We investigated the effects of supplement identification on exercise performance with caffeine supplementation. Forty-two trained cyclists (age 37 +/- 8years, body mass [BM] 74.3 +/- 8.4kg, height 1.76 +/- 0.06m, maximum oxygen uptake 50.0 +/- 6.8mL/kg/min) performed a similar to 30min cycling time-trial 1h following either 6mg/kgBM caffeine (CAF) or placebo (PLA) supplementation and one control (CON) session without supplementation. Participants identified which supplement they believed they had ingested (caffeine, placebo, don't know) pre- and post-exercise. Subsequently, participants were allocated to subgroups for analysis according to their identifications. Overall and subgroup analyses were performed using mixed-model and magnitude-based inference analyses. Caffeine improved performance vs PLA and CON (P0.001). Correct pre- and post-exercise identification of caffeine in CAF improved exercise performance (+4.8 and +6.5%) vs CON, with slightly greater relative increases than the overall effect of caffeine (+4.1%). Performance was not different between PLA and CON within subgroups (all P>0.05), although there was a tendency toward improved performance when participants believed they had ingested caffeine post-exercise (P=0.06; 87% likely beneficial). Participants who correctly identified placebo in PLA showed possible harmful effects on performance compared to CON. Supplement identification appeared to influence exercise outcome and may be a source of bias in sports nutrition.
conferenceObject Optimising Sodium Bicarbonate Supplementation: Are Gastro-resistant Capsules The Answer?(2018) OLIVEIRA, Luana F.; SAUNDERS, Bryan; YAMAGUCHI, Guilherme; GUALANO, Bruno; ROSCHEL, Hamilton; ARTIOLI, Guilherme G.- Exercise Enhances the Effect of Bariatric Surgery in Markers of Cardiac Autonomic Function(2021) GIL, Saulo; PECANHA, Tiago; DANTAS, Wagner S.; MURAI, Igor Hisashi; MEREGE-FILHO, Carlos Alberto Abujabra; SA-PINTO, Ana Lucia de; PEREIRA, Rosa Maria Rodrigues; CLEVA, Roberto de; SANTO, Marco Aurelio; REZENDE, Diego Augusto Nunes; KIRWAN, John P.; GUALANO, Bruno; ROSCHEL, HamiltonBackground Bariatric surgery improves cardiovascular health, which might be partly ascribed to beneficial alterations in the autonomic nervous system. However, it is currently unknown whether benefits from surgery on cardiac autonomic regulation in post-bariatric patients can be further improved by adjuvant therapies, namely exercise. We investigated the effects of a 6-month exercise training program on cardiac autonomic responses in women undergoing bariatric surgery. Methods Sixty-two women eligible for bariatric surgery were randomly allocated to either standard of care (control) or an exercise training intervention. At baseline (PRE) and 3 (POST3) and 9 (POST9) months after surgery, we assessed chronotropic response to exercise (CR%; i.e., percentage change in heart rate from rest to peak exercise) and heart rate recovery (HRR30s, HRR60s, and HRR120s; i.e., decay of heart rate at 30, 60, and 120 s post exercise) after a maximal exercise test. Results Between-group absolute changes revealed higher CR% (Delta = 8.56%, CI95% 0.22-19.90, P = 0.04), HRR30s (Delta = 12.98 beat/min, CI95% 4.29-21.67, P = 0.01), HRR60s (Delta = 22.95 beat/min, CI95% 11.72-34.18, P = 0.01), and HRR120s (Delta = 34.54 beat/min, CI95% 19.91-49.17, P < 0.01) in the exercised vs. non-exercised group. Conclusions Our findings demonstrate that exercise training enhanced the benefits of bariatric surgery on cardiac autonomic regulation. These results highlight the relevance of exercise training as a treatment for post-bariatric patients, ensuring optimal cardiovascular outcomes.