Navegando por Palavras-chave "aerobic exercise"
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- ItemSomente MetadadadosAerobic exercise acutely prevents the endothelial dysfunction induced by mental stress among subjects with metabolic syndrome: the role of shear rate(Amer Physiological Soc, 2014-04-01) Sales, Allan R. K.; Fernandes, Igor A.; Rocha, Natalia G.; Costa, Lucas S.; Rocha, Helena N. M.; Mattos, Joao D. M.; Vianna, Lauro C.; Silva, Bruno M. [UNIFESP]; Nobrega, Antonio C. L.; Universidade Federal Fluminense (UFF); Universidade Federal de São Paulo (UNIFESP)Mental stress induces transient endothelial dysfunction, which is an important finding for subjects at cardiometabolic risk. Thus, we tested whether aerobic exercise prevents this dysfunction among subjects with metabolic syndrome (MetS) and whether an increase in shear rate during exercise plays a role in this phenomenon. Subjects with MetS participated in two protocols. in protocol 1 (n = 16), endothelial function was assessed using brachial artery flow-mediated dilation (FMD). Subjects then underwent a mental stress test followed by either 40 min of leg cycling or rest across two randomized sessions. FMD was assessed again at 30 and 60 min after exercise or rest, with a second mental stress test in between. Mental stress reduced FMD at 30 and 60 min after the rest session (baseline: 7.7 +/- 0.4%, 30 min: 5.4 +/- 0.5%, and 60 min: 3.9 +/- 0.5%, P < 0.05 vs. baseline), whereas exercise prevented this reduction (baseline: 7.5 +/- 0.4%, 30 min: 7.2 +/- 0.7%, and 60 min: 8.7 +/- 0.8%, P > 0.05 vs. baseline). Protocol 2 (n = 5) was similar to protocol 1 except that the first period of mental stress was followed by either exercise in which the brachial artery shear rate was attenuated via forearm cuff inflation or exercise without a cuff. Noncuffed exercise prevented the reduction in FMD (baseline: 7.5 +/- 0.7%, 30 min: 7.0 +/- 0.7%, and 60 min: 8.7 +/- 0.8%, P > 0.05 vs. baseline), whereas cuffed exercise failed to prevent this reduction (baseline: 7.5 +/- 0.6%, 30 min: 5.4 +/- 0.8%, and 60 min: 4.1 +/- 0.9%, P < 0.05 vs. baseline). in conclusion, exercise prevented mental stress-induced endothelial dysfunction among subjects with MetS, and an increase in shear rate during exercise mediated this effect.
- ItemSomente MetadadadosAerobic exercise in polluted urban environments: effects on airway defense mechanisms in young healthy amateur runners(Iop Publishing Ltd, 2016) Sá, Matheus Cavalcante de [UNIFESP]; Nakagawa, Naomi Kondo; Saldiva de Andre, Carmen Diva; Carvalho-Oliveira, Regiani; Carvalho, Tamas de Santana; Nicola, Marina Lazzari; de Andre, Paulo Afonso; Nascimento Saldiva, Paulo Hilario; Vaisberg, Mauro [UNIFESP]In this study, the effects of aerobic exercise on the upper airways and their defense mechanisms were investigated in athletes. The athletes ran in two different environments: the downtown streets of the city of Sao Paulo (Street), more polluted, and an urban forest (Forest), less polluted. Thirty-eight young healthy athletes ran for 45 min d(-1) randomly during five consecutive days, with an interval of 48 h before changing environment. Clinical parameters and respiratory tract defense markers were evaluated before and after the first run on Mondays (1 d) and on Fridays (5 d). Street presented higher mean PM2.5 concentrations (65.1 +/- 39.1 mu gm(-3), p < 0.001) and lower temperature (22.0 degrees C, p = 0.010) than Forest (22.6 +/- 15.3 mu g m(-3) and 22.8 degrees C). After 1 d Street running, subjects showed an increment in heart rate (p < 0.001). At day 5, there was twice the number of athletes with impaired nasal mucociliary clearance (MCC) in the Street runners group when compared to the Forest runners group. Exhaled breath condensate pH values increased in the Forest group, with significant differences between groups in day 1 (p = 0.006) and day 5 (p < 0.001), despite the fact that both groups showed values within the normal range. After exposure to both environments, the number of cells in the nasal lavage fluid was reduced after exercise (p = 0.014), without alterations in cell type and IL-8 and IL-10 concentrations. Aerobic exercise can either maintain or acutely enhance MCC and it may help to regulate inflammatory responses in the airways. Here we show that exercise practice in polluted outdoor environment, over a 5 d period, impairs MCC. In contrast, athletes running in the less polluted environment (Forest) show higher exhaled breath condensate pH values when compared to those who exercised in a more polluted environment (Street).
- ItemAcesso aberto (Open Access)Amitriptyline and aerobic exercise or amitriptyline alone in the treatment of chronic migraine: a randomized comparative study(Academia Brasileira de Neurologia - ABNEURO, 2014-11-01) Santiago, Michelle Dias Santos; Carvalho, Deusvenir de Souza; Gabbai, Alberto Alain [UNIFESP]; Pinto, Mariana Machado Pereira; Moutran, Andrea Regina Correa; Villa, Thaís Rodrigues [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)To compare the preventive treatment benefits of amitriptyline and aerobic exercise or amitriptyline alone in patients with chronic migraine.Method Sixty patients, both genders, aged between 18 and 50 years, with a diagnosis of chronic migraine, were randomized in groups called amitriptyline and aerobic exercise or amitriptyline alone. The following parameters were evaluated: headache frequency, intensity and duration of headache, days of the analgesic medication use, body mass index (BMI), Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI) scores. Results In the evaluated parameters, was observed decrease in headache frequency (p=0.001), moderate intensity (p=0.048), in headache duration (p=0.001), the body mass index (p=0.001), Beck Depression Inventory (p=0.001) and Beck Anxiety Inventory scores (p=0.001), when groups were compared in the end of third month. Conclusion In this study, the amitriptyline was an effective treatment for chronic migraine, but its efficacy was increased when combined with aerobic exercise.
- ItemSomente MetadadadosAssessment of aerobic capacity during swimming exercise in ob/ob mice(Wiley-Blackwell, 2011-12-01) Almeida, W. S.; Lima, L. C. J.; Cunha, V. N. C.; Cunha, R. R.; Araujo, R. C.; Barros, C. C. [UNIFESP]; Simoes, H. G.; Campbell, C. S. G.; Univ Catolica Brasilia; Universidade Federal de São Paulo (UNIFESP)Obesity is a highly prevalent condition associated with several diseases. Physical exercise has been considered as a non-pharmacological tool in the treatment of obesity. However, several aspects underlying exercise evaluation and prescription in obesity and associated pathologies are still under investigation. Although many research involving exercise have been performed in animal models, there is a lack of protocols for aerobic capacity assessment in obese animals, such as the ob/ob mice. This study aimed the following: (i) to verify the possibility of determining the lactate threshold (LT) on swimming exercise in ob/ob mice and in non-obese heterozygote mice (ob/OB), through visual inspection (vLT) and polynomial adjustment (pLT); and (ii) to verify if the LT determined through these protocols corresponds to the maximal lactate steady state (MLSS). Eight ob/ob and ten ob/OB mice performed an incremental exercise test to determine vLT and pLT as well as constant-load exercise bouts to determine MLSS. There were no within-group differences between vLT, pLT and MLSS [ob/ob: similar to 5.3% body weight (BW); ob/OB: similar to 3 center dot 6%BW] with a high agreement among protocols. in conclusion, the identification of the LT and MLSS intensities was possible for both groups. These data suggest that the proposed protocols may be used in new research on the effects of different exercise intensities on some aspects of obesity. Copyright (c) 2011 John Wiley & Sons, Ltd.
- ItemSomente MetadadadosChanges in HDL-c concentrations after 16 weeks of combined training in postmenopausal women: characteristics of positive and negative responders(Canadian Science Publishing, Nrc Research Press, 2018) Diniz, Tiego A.; Rossi, Fabricio E.; Souza Fortaleza, Ana Claudia; Neves, Lucas Melo; Destro Christofaro, Diego Giulliano; Buonani, Camila; Lira, Fabio S.; Campos, Eduardo Zapaterra; do Prado, Wagner Luiz [UNIFESP]; Freitas, Ismael Forte, Jr.This study aimed to investigate the individual characteristics of body composition and metabolic profile that could explain interindividual variation in high-density lipoprotein cholesterol (HDL-c) concentrations in response to 16 weeks of combined strength plus aerobic (combined) training in postmenopausal women. The participants were divided into tertiles based on percentage of changes in HDL-c concentrations after combined training. Only women in the upper tertile (positive responders: Delta > 10.4%
- ItemSomente MetadadadosComparison of the Effects of Hydration with Water or Isotonic Solution on the Recovery of Cardiac Autonomic Modulation(Human Kinetics Publ Inc, 2015-04-01) Vanderlei, Franciele Marques [UNIFESP]; Moreno, Isadora Lessa [UNIFESP]; Marques Vanderlei, Luiz Carlos; Pastre, Carlos Marcelo; Abreu, Luiz Carlos de [UNIFESP]; Ferreira, Celso [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); São Paulo State UnivDespite the importance of hydration during exercise, the impact of ingesting water or isotonic solution during and after exercise on the regulation of autonomic modulation is unclear. the study aimed to compare the effect of ingesting water or isotonic solution (Gatorade (R), Brazil) on cardiac autonomic modulation in young people after submaximal aerobic exercise. Thirty-one young men were subjected to a protocol consisting of 4 steps: 1) incremental test, 2) control protocol without hydration, 3) protocol with ingestion of water, and 4) protocol with ingestion of isotonic solution. the protocol consisted of 10 min of rest, 90 min of treadmill exercise at 60% VO2peak, and 60 min of recovery at rest. in the hydration protocols, hydration occurred during and after exercise, every 15 min beginning after the 15th minute of exercise, with the amount ingested proportional to body mass lost in the control protocol. Autonomic modulation was evaluated by heart rate variability. the hydration protocols promoted a more efficient recovery of autonomic modulation, and for the exercise performed, regardless of the hydration administered, the effect on autonomic modulation was similar.
- ItemSomente MetadadadosEffect of an aerobic exercise program on blood pressure and catecholamines in normotensive and hypertensive subjects(Assoc Bras Divulg Cientifica, 1996-05-01) Arida, Ricardo Mario [UNIFESP]; Naffah-Mazzacoratti, Maria da Graca [UNIFESP]; Soares, J.; Cavalheiro, Esper Abrão [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Interrelations between physical exercise, monoamines and hypertension are postulated by various investigators. The purpose of the present study was to determine and compare catecholamine levels at rest and after a 12-week aerobic exercise program in 11 sedentary normotensive (N) and 8 hypertensive (H) men. Plasma catecholamines were determined by high performance liquid chromatography with electrochemical detection. A significant post-exercise increase in plasma noradrenaline was observed in the N and H groups (P<0.01) both before and after the aerobic exercise program. The hypertensive group showed a significant reduction of the sum of 7 skinfold thickness scores after the aerobic exercise program (from 178.7 +/- 65.6 to 144.0 +/- 47.4 mm) although no significant difference was observed when the body mass index was compared. A significant reduction in diastolic blood pressure at rest was observed in the H group after the aerobic exercise program (from 99.2 +/- 2.0 to 85.0 +/- 5.5). There were no significant differences in catecholamine concentrations between groups before and after the 12-week aerobic exercise program at rest and post-exercise. These data show a relationship between physical exercise and hypertension that was not related to changes in plasma catecholamine levels.
- ItemSomente MetadadadosEffects of high intensity running to fatigue on isokinetic muscular strength in endurance athletes(Ios Press, 2007-01-01) Denadai, Benedito Sergio [UNIFESP]; Greco, Camila Coelho; Tufik, Sergio [UNIFESP]; Mello, Marco Tulio de [UNIFESP]; UNESP; Universidade Federal de São Paulo (UNIFESP)The objective of this study was to examine the effects of high intensity exhaustive running exercise on the muscular torque capacity of the knee extensors for two types of contraction (concentric and eccentric) at different angular velocities (60 and 180 degrees/s) in well-trained runners. Eleven male runners specialized in middle and long-distance running volunteered to participate in this study. Initially each subject performed, on different days, two familiarization sessions on an isokinetic dynamometer and an incremental treadmill test to volitional exhaustion to determine the velocity associated with the onset of blood lactate accumulation (OBLA). The subjects then returned to the laboratory on two occasions, separated by at least seven days, to perform maximal isokinetic knee contractions at each of the velocities under eccentric (Ecc) and concentric (Con) conditions. Conducted randomly, one test was performed after a standardized warm-up period of 5 min at 50% VO2 max. The other test was performed 15 min after continuous running at OBLA until volitional exhaustion. Following this high intensity exercise there was a significant reduction of Con at 60 degrees/s and a significant reduction of Ecc at both velocities. Percent strength losses after running exercise were significantly different between contraction types only at 180 degrees/s. We can conclude that the reduction in isokinetic peak torque of the knee extensors after a session of high intensity exhaustive running exercise at OBLA depends on the contraction type and angular velocity.
- ItemAcesso aberto (Open Access)Effects of prolonged running performed at the intensity corresponding to the onset of blood lactate accumulation, on maximum isokinetic strength in active non-athletic individuals(Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia, 2007-06-01) Denadai, Benedito Sérgio; Greco, Camila Coelho; Tufik, Sergio [UNIFESP]; Mello, Marco Tulio de [UNIFESP]; Universidade Estadual Paulista (UNESP); Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: The objective of this study was to analyze the effects of prolonged continuous running performed at the intensity corresponding to the onset of blood lactate accumulation (OBLA), on the peak torque of the knee extensors, analyzed in relation to different types of contraction and movement velocities in active individuals. METHOD: Eight men (23.4 ± 2.1 years; 75.8 ± 8.7 kg; 171.1 ± 4.5 cm) participated in this study. First, the subjects performed an incremental test until volitional exhaustion to determine the velocity corresponding to OBLA. Then, the subjects returned to the laboratory on two occasions, separated by at least seven days, to perform five maximal isokinetic contractions of the knee extensors at two angular velocities (60 and 180º.s-1) under eccentric and concentric conditions. Eccentric peak torque (EPT) and Concentric peak torque (CPT) were measured at each velocity. One session was performed after a standardized warm-up period (5 min at 50% VO2max). The other session was performed after continuous running at OBLA until volitional exhaustion. These sessions were conducted in random order. RESULTS: There was a significant reduction in CPT only at 60º.s-1 (259.0 ± 46.4 and 244.0 ± 41.4 N.m). However, the reduction in EPT was significant at 60º.s-1 (337.3 ± 43.2 and 321.7 ± 60.0 N.m) and 180º.s-1 (346.1 ± 38.0 and 319.7 ± 43.6 N.m). The relative strength losses after the running exercise were significant different between contraction types only at 180º.s-1. CONCLUSION: We can conclude that, in active individuals, the reduction in peak torque after prolonged continuous running at OBLA may be dependent on the type of contraction and angular velocity.
- ItemSomente MetadadadosImmediate and 24-h blood pressure-lowering effects of arm crank exercise in patients with traumatic lower-limb amputation: a randomized cross-over study(Lippincott Williams & Wilkins, 2018) Paula-Ribeiro, Marcelle [UNIFESP]; Martinez, Daniel G.; Lima, Jorge R. P.; Laterza, Mateus C.Aim: This study aimed to investigate the clinic and 24-h postexercise hypotension (PEH) after a moderate-intensity arm crank exercise session in individuals with traumatic lower-limb amputation.Participants and methodsNine men (4617 years) with unilateral traumatic lower-limb amputation participated in two experimental sessions conducted randomly: an aerobic exercise (EXE: arm crank ergometer, 30min) or a control session (CON: participants remained seated on the cycle ergometer, 30min). Clinic and 24-h systolic, diastolic, and mean blood pressure (BP) response were measured after both sessions. The clinical measurements of blood flow and forearm vascular resistance (FVR) were also performed.ResultsCompared with the preintervention period, the BP levels did not change in the CON session. However, EXE resulted in a significant hypotensive effect in systolic (-10 +/- 0.9mmHg, P0.05), diastolic (-11 +/- 1.5mmHg, P0.05), and mean BP (-11 +/- 1.2mmHg, P0.05) during the entire postexercise period. The PEH was accompanied by a decreased FVR over the entire postintervention period (P0.05). Significant reductions were found for 24-h average systolic, diastolic, and mean BP levels (P=0.03, 0.01, and 0.02, respectively) following EXE compared with the CON session.ConclusionThese results showed, for the first time, that individuals with traumatic lower-limb amputation presented immediate and 24-h PEH after a single bout of arm crank exercise testing. The PEH at the clinic condition was justified, at least in part, by the reduction in peripheral FVR.
- ItemSomente MetadadadosIncrease in kinins on post-exercise hypotension in normotensive and hypertensive volunteers(Walter de Gruyter & Co, 2007-05-01) Moraes, Milton R.; Bacurau, Reury Frank Pereira; Ramalho, Joao D. S.; Reis, Felipe C. G.; Casarini, Dulce E.; Chagas, Jair R.; Oliveira, Vitor; Higa, Elisa Mieko S.; Abdalla, Dulcineia S. R.; Pesquero, Jorge L.; Pesquero, Joao B.; Araujo, Ronaldo C.; Universidade Federal de São Paulo (UNIFESP); Univ Mogi das Cruzes; Fac Metropolitanas Unidas; Universidade de São Paulo (USP); Universidade Federal de Minas Gerais (UFMG)Post-exercise hypotension is an important event for blood pressure regulation, especially in hypertensive individuals. Although post-exercise hypotension is a well-known phenomenon, the mechanism responsible is still unclear. the kallikrein-kinin system is involved in blood pressure control, but its role in post-exercise hypotension has not yet been investigated. Thus, the purpose of this study was to investigate the involvement of the vasodilators bradykinin and des-Arg(9)-BK and kallikrein activity in post-exercise hypotension promoted by 35 min of cycle ergometer (CE) or circuit weight-training (CVVT) bouts in normotensive and hypertensive individuals. A significant decrease in mean arterial pressure at 45 and 60 min after CE and 45 min after CVVT was observed in normotensive individuals. Hypertensive values of mean arterial pressure were significantly reduced at 45 and 60 min after CE and at 60 min after CWT Before exercise, plasma bradykinin concentrations and kallikrein activity were higher in hypertensive compared to normotensive volunteers. Kinin levels increased in the groups evaluated at the end of the training period and 60 min post-exercise. These data suggest that the kallikrein-kinin system may be involved in post-exercise hypotension in normotensive and hypertensive individuals subjected to CE and CWT bouts.
- ItemSomente MetadadadosA randomized controlled trial of deep water running: Clinical effectiveness of aquatic exercise to treat fibromyalgia(Wiley-Blackwell, 2006-02-15) Assis, Marcos Renato de [UNIFESP]; Silva, Luciana Eduardo [UNIFESP]; Alves, Adriana Martins Barros [UNIFESP]; Pessanha, Ana Paula [UNIFESP]; Valim, Valeria [UNIFESP]; Pollak, Daniel Feldman [UNIFESP]; Barros Neto, Turibio Leite de [UNIFESP]; Natour, Jamil [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Objective. To compare the clinical effectiveness of aerobic exercise in the water with walking/jogging for women with fibromyalgia (FM).Methods. Sixty sedentary women with FM, ages 18-60 years, were randomly assigned to either deep water running (DWR) or land-based exercises (LBE). Patients were trained for 15 weeks at their anaerobic threshold. Visual analog scale of pain, Fibromyalgia Impact Questionnaire (FIQ), Beck Depression Inventory, Short Form 36 Health Survey (SF-36), and a patient's global assessment of response to therapy (PGART) were measured at baseline, week 8, and week 15. Statistical analysis included all patients.Results. Four patients dropped out from each group. Both groups improved significantly at week 15 compared with baseline, with an average 36% reduction in pain intensity. for PGART, 40% of the DWR group and 30% of the LBE group answered much better at posttreatment. FIQ total score and FIQ depression improvements in the DWR group were faster (week 8) than the LBE group and kept improving (week 15; P < 0.05). Only the DWR group showed improvements in SF-36 role emotional (P = 0.006). No significant between-group differences were observed for peak oxygen uptake and other outcomes.Conclusion. DWR is a safe exercise that has been shown to be as effective as LBE regarding pain. However, it has been shown to bring more advantages related to emotional aspects. Aerobic gain was similar for both groups, regardless of symptom improvement. Therefore, DWR could be studied as an exercise option for patients with FM who have problems adapting to LBE or lower limbs limitations.
- ItemSomente MetadadadosRandomized controlled trial to evaluate the impact of aerobic exercise on visceral fat in overweight chronic kidney disease patients(Oxford Univ Press, 2014-04-01) Baria, Flavia [UNIFESP]; Kamimura, Maria Ayako [UNIFESP]; Aoike, Danilo Takashi [UNIFESP]; Ammirati, Adriano [UNIFESP]; Rocha, Mariana Leister [UNIFESP]; Mello, Marco Tulio de [UNIFESP]; Cuppari, Lilian [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Background. the prevalence of obesity has markedly increased in patients with chronic kidney disease (CKD). Studies on the impact of exercise focusing on obese CKD patients are scarce. Therefore, we aimed to investigate the effect of aerobic exercise performed either in an exercise centre or at home on visceral fat in overweight non-dialysed CKD patients.Methods. Twenty-seven sedentary men (52.1 +/- 9.5 years, body mass index 30.4 +/- 3.8 kg/m(2), estimated glomerular filtration rate (eGFR) 27.5 +/- 11.6 mL/min) were randomly assigned to a centre-based exercise group (n = 10), home-based exercise group (n = 8) or control group (n = 9). the aerobic training was prescribed according to ventilatory threshold and performed three times per week during 12 weeks. Body composition was assessed by dual energy X-ray absorptiometry (DEXA) and the distribution of abdominal fat by computed tomography.Results. in the centre-based group, visceral fat and waist circumference decreased 6.4 +/- 6.4 mm (P < 0.01) and 2.0 +/- 2.3 cm (P = 0.03) and leg lean mass increased 0.5 +/- 0.4 kg (P < 0.01). No significant changes were observed in the homebased group. Visceral fat increased 5.0 +/- 4.4 mm in the control group (P = 0.01). in relation to the control, a group-by-time interaction was significant for visceral fat and waist circumference for both exercise groups and for leg lean mass for the centre-based group. Mean blood pressure decreased in both exercise groups (centre-based 13%, P < 0.01 and home-based 10%, P = 0.03) and eGFR increased 3.6 +/- 4.6 mL/min (P = 0.03) in the centre-based group. These parameters remained unchanged in the control group.Conclusions. Centre-based aerobic exercise is an effective approach to reduce visceral fat besides promoting relevant clinical benefits in male overweight CKD patients.