Efeitos do treinamento de corrida em diferentes intensidades sobre a capacidade aeróbia e produção de lactato pelo músculo de ratos Wistar

Araújo, Michel Barbosa de; Manchado-Gobatto, Fúlvia de Barros; Voltarelli, Fabrí­cio Azevedo; Ribeiro, Carla; Mota, Clécia Soares de Alencar; Gobatto, Cláudio Alexandre; Mello, María Alice Rostom de

doi:10.1590/s1517-86922009000600009

Cited by 4 publications

(4 citation statements)

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“…In the present study, the intensity of exercise was moderate (RPE between 11 and 14) and duration of 50 minutes, and no BP reduction after the exercise performance was evidenced. In this sense, although some studies show that exercise intensity does not influence the hypotensive response of exercise [34], others demonstrate that exercise intensity may influence the duration of such response [35,36], just as the magnitude may be dependent on the duration of the exercise [37]. In addition, this relationship with intensity and duration of training also seems to influence the responses of BPV [38].…”

Section: Discussionmentioning

confidence: 99%

Efeito agudo do Mat Pilates sobre a variabilidade da pressão arterial ambulatorial em mulheres após a menopausa

Batista¹,

Mariano²,

Amaral³

et al. 2021

Rev Bras Fisiol Exerc

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Background: After menopause, women increase the risk of developing cardiovascular disease. Physical exercise is one of the treatments for reducing the incidence of these diseases, and the Pilates method consists of a complete conditioning program. Aims: To verify the responses of Ambulatory Blood Pressure Monitoring (ABPM) and Blood Pressure Variability after a single session of Mat Pilates in non-obese post menopause women. Methods: This is a randomized crossover study with 15 normotensive postmenopausal women, who participated in a single Mat Pilates session and a control session. The Mat Pilates session lasted 50 minutes, with 5 minutes of warm-up. In each exercise, there was 1 set of 10 repetitions with 45 seconds of rest between sets. The control session should have the same duration, but the volunteers remained seated. ABPM was assessed for 24 hours after the intervention. Statistical analysis: Two-way ANOVA with Newman-Keuls post hoc was used to analyze ABPM variables and Student's t test for analysis of blood pressure variability. Results: There was no significant difference (p < 0.05) in systolic blood pressure nor diastolic blood pressure responses during 24h, awake and sleep phases and in its variability between Pilates and Control sessions. Conclusion: Acute Mat Pilates did not reduce ABPM or its variability in non-obese postmenopausal women.Keywords: menopause, arterial pressure, exercise therapy.

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Section: Discussionmentioning

confidence: 99%

Efeito agudo do Mat Pilates sobre a variabilidade da pressão arterial ambulatorial em mulheres após a menopausa

Batista¹,

Mariano²,

Amaral³

et al. 2021

Rev Bras Fisiol Exerc

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“…Studies on the influence of exercise on the human body (Almeida, 2007;Lizardo et al, 2007), and also in animals (Camargo Filho et al, 2005;Araújo et al, 2009;Masi & Silva, 2009) are diverse and well disseminated, but regarding experiments on fluid restriction, reports are scarce, specifically in relation to animal experiments (Prazeres et al;Tomanari et al, 2003Tomanari et al, , 2007.…”

Section: Discussionmentioning

confidence: 99%

Histology and Renal Lipoperoxidation in Rats Exercised on a Treadmill and Submitted to Water Restriction

Lorençoni

Pelai

Godoy³

et al. 2015

Int. J. Morphol.

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SUMMARY:Physical effort stimulates an increase in oxygen consumption in tissues, generating toxic chemical species derived from oxygen (ROS), which are considered the initiators of the lipid peroxidation process (LPO), the major mechanism of cellular injury. As the essential mechanism for maintaining the electrolyte balance depends on an effective kidney function, oxidative stress in this organ can be a key factor in the development and persistence of hypertension. This study aimed to determine the kidney changes induced by a combination of fluid restriction and exercise in rats. The study consisted of 24 male Wistar rats of 90 days of age, divided into four groups, two of which were submitted to water restriction and exercise on a treadmill. Twenty-four hours after the last training session, the animals were euthanized and the left kidney was removed. The upper part of the kidney was used for the histological procedures and the lower part for the quantification of membrane lipoperoxides. Analysis of variance was applied after testing the normality of data, and the comparison between groups was performed using the Bonferroni test, adopting a significance of p<0.05. The restriction had an influence on body weight; kidney weight; proximal tubule maximum diameter; and area, perimeter and diameter of glomeruli, whereas the exercise affected the weight and the minimum diameter of the proximal tubule. According to the TBARS (thiobarbituric acid reactive substances) method, there was a difference between the G1 (control) and G3 (sedentary with water restriction) and between the G2 (exercised with water) and G4 (exercised with water restriction) compared to G1. The treadmill exercise combined with the water restriction promoted structural changes in the glomeruli and promoted oxidative stress, although neither variable corroborated for the potentiating of lipid peroxidation.

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“…When individuals are submitted to highintensity exercise, the blood lactate concentration rises after three to four minutes of activity, thereby indicating that the rate of production exceeds the velocity of removal [32]. Differently from acute exercise, the training, mainly those of aerobic nature, generates considerable metabolic adaptations in relation to the turnover of lactate, and, as a consequence, results in the reduction of accumulation of lactate during exercise, thus causing an increase in the intensity of MLSS of animals [16,35]. This is an indicative of improvement in aerobic fitness [36].…”

Section: Discussionmentioning

confidence: 99%

Creatine supplementation in exercised rats: Effects on the aerobic capacity

Araújo

Vieira²,

Moura³

et al. 2013

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This study aimed to analyze the possible metabolic disturbances caused by creatine supplementation on aerobic capacity of rats, inferred by the maximal lactate steady state. Forty male Wistar rats (90 days old) were distributed into two groups for eight weeks: trained group (T): rats that were submitted to a training protocol, and supplemented-trained group (TCr): rats that were submitted to a training protocol and received balanced diet supplemented with 2% creatine. The blood lactate concentrations equivalent to maximal lactate steady state during treadmill running were analyzed at the beginning and also at the end of the experiment. At the end of the experiment were done comparing the test results MLSS between the two groups. At the beginning of the experiment, prior to groups division, the majority of animals obtained MLSS at a speed of26 m/min, blood lactate concentration of 3.79 ± 0.76 mmol/L. At the end of the experiment, most of trained rats in T presented MLSS at the speed of28 m/min, blood lactate concentration of 3.37 ± 0.68 mmol/L. Most TCr had MLSS at the speed of28 m/min, blood lactate concentration of 3.52 ± 0.69 mmol/L. We conclude that creatine supplementation was not the cause of the improvement in the aerobic capacity of rats in the tread-mill exercise.

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Efeitos do treinamento de corrida em diferentes intensidades sobre a capacidade aeróbia e produção de lactato pelo músculo de ratos Wistar

Cited by 4 publications

References 20 publications

Efeito agudo do Mat Pilates sobre a variabilidade da pressão arterial ambulatorial em mulheres após a menopausa

Efeito agudo do Mat Pilates sobre a variabilidade da pressão arterial ambulatorial em mulheres após a menopausa

Histology and Renal Lipoperoxidation in Rats Exercised on a Treadmill and Submitted to Water Restriction

Creatine supplementation in exercised rats: Effects on the aerobic capacity

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