Antioxidant Effect on Urinary Excretion of Malondialdehyde in Non-Athletes During Aerobic Training

2009 ◽  
Vol 79 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Hadley ◽  
Visser ◽  
Vander Steen

Conditions in the body during aerobic exercise increase the level of lipid peroxidation (LP). LP is associated with elevated concentration of modified low-density lipoproteins that are implicated in development of cardiovascular disease. Supplementation with antioxidant vitamin E to athletes at 267 mg (400 IUs) or greater has been reported to reduce levels of LP associated with exercise. Little is currently known about the effects of modest supplementation of vitamin E on previously sedentary adults who initiate an aerobic fitness program. In the present study, sedentary subjects (n = 14) kept 24-hour diet records to establish antioxidant intake of vitamins E and C and collected 24-hour urine samples that were used to determine baseline urinary malondialdehyde (MDA) concentrations, one measure of in vivo LP. No significant differences were noted in the parameters between groups. Seven subjects were randomly selected and supplemented daily with 133 mg (200 IUs) of vitamin E. All subjects participated in moderate-intensity aerobic training for 8 weeks. Post-training, non-supplemented subjects excreted significantly more MDA (p&<0.05) and consumed significantly fewer antioxidants than the supplemented group. Vitamin E supplementation appears to suppress elevated LP associated with beginning an aerobic exercise regimen in previously sedentary subjects.

2021 ◽  
Author(s):  
Ali Osali ◽  
Alireza Rostami

Abstract Backgrounds and ObjectivesThe use of anti-inflammatory supplements is important in improving the executive function of obese people. The aim of this research was to investigate the effect of 6 weeks of aerobic exercise with moderate intensity and consumption of nanocurcumin on IL1β, nitric oxide, and depression in women aged 60-65 with metabolic syndrome. Materials and Methods44 women with metabolic syndrome (MetS) were randomly selected and divided into four groups of 10, including MetS exercise+ Curcumin (MECU), MetS exercise (ME), MetS NanoCurcumin (MCU), MetS control (MC Training groups performed an exercise protocol of aerobic exercise for 6 weeks (three sessions per week). Blood samples were obtained before and after the training period for antioxidant indicators and lipid degradation measurement. Also, the Beck anxiety questionnaire was used for evaluating levels of anxiety. T-test and one-way analysis of variance were used for the evaluation of within-group and between-group differences, respectively.ResultsThere was a significant difference in IL1β, nitric oxide (NO), and depression before and after exercise in all three experimental groups (p≤0.05). Also, the results showed a significant difference in the level of NO and depression in the research groups. The highest decrease in these variables was observed in the aerobic training group and training with nanocurcumin consumption group (p≤0.05).ConclusionThese findings indicated that six-week nanocurcumin supplementation with aerobic training is a suitable method for reducing IL1β and NO and depression, preventing metabolic, cardiovascular, and inflammatory diseases in women with metabolic syndrome.Name of the registry: IR.SEMUMS.REC.1396.107Trial registration number: IRCT2017082335857N1


2016 ◽  
Vol 25 (2) ◽  
pp. 112-7
Author(s):  
Robert Stefanus ◽  
Sophie Yolanda ◽  
Radiana D. Antarianto

Background: Glial fibrillary acidic protein (GFAP) and heat shock protein -27 (HSP27) plasma can be used as the parameters of exercise-induced astrocyte reactivity. The American College of Sports Medicine (ACSM) recommends an exercise of 30 minutes or 10 minutes duration (each performing bout accumulated toward 30 minutes). The aim of this study was to compare GFAP and HSP27 plasma concentrations in young adults undergoing acute moderate-intensity aerobic exercise of different durations (10 minutes vs 30 minutes).Methods: An experimental study with pre-post design was conducted on 22 participants assigned to either 10 minutes or 30 minutes duration of single bout exercise. Blood sampling was performed before and after the exercise. GFAP and HSP27 plasma levels were measured with ELISA methods. Plasma GFAP and HSP27 levels before and after exercise were analyzed using paired t -test, while GFAP and HSP27 levels after exercise between the two groups were processed using unpaired t-test.Results: Plasma GFAP concentration decreased significantly (0,45 ng/mL) after 30 minutes of aerobic exercise (p<0.05). Plasma HSP27 concentration decreased significantly (1,71 ng/mL) after 10 minutes of aerobic exercise (p<0.05). No significant difference in plasma GFAP and HSP27 concentrations between 10 minutes (GFAP=0.49 ng/mL; HSP27=2.09 ng/mL) and 30 minutes duration of exercise (GFAP=0.45 ng/mL; HSP27=1,71 ng/mL).Conclusion: Acute moderate-intensity aerobic exercise with 10- and 30-minutes duration reduces the reactivity of astrocytes indication the increase of the synapse plasticity. The decrease in GFAP concentration occurred after 30 minutes of exercise and the decrease in HSP27 occurred after 10 minutes of exercise. These results showed that the body responds differently to different treatment duration in order to obtain the same effect on the body.


Cancers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2240
Author(s):  
Guilherme Maginador ◽  
Manoel E. Lixandrão ◽  
Henrique I. Bortolozo ◽  
Felipe C. Vechin ◽  
Luís O. Sarian ◽  
...  

While performing aerobic exercise during chemotherapy has been proven feasible and safe, the efficacy of aerobic training on cardiorespiratory fitness (CRF) in women with breast cancer undergoing chemotherapy has not yet been systematically assessed. Therefore, the objective of this work was to determine (a) the efficacy of aerobic training to improve CRF; (b) the role of aerobic training intensity (moderate or vigorous) on CRF response; (c) the effect of the aerobic training mode (continuous or interval) on changes in CRF in women with breast cancer (BC) receiving chemotherapy. A systematic review and meta-analysis were conducted as per PRISMA guidelines, and randomized controlled trials comparing usual care (UC) and aerobic training in women with BC undergoing chemotherapy were eligible. The results suggest that increases in CRF are favored by (a) aerobic training when compared to usual care; (b) vigorous-intensity aerobic exercise (64–90% of maximal oxygen uptake, VO2max) when compared to moderate-intensity aerobic exercise (46–63% of VO2max); and (c) both continuous and interval aerobic training are effective at increasing the VO2max. Aerobic training improves CRF in women with BC undergoing chemotherapy. Notably, training intensity significantly impacts the VO2max response. Where appropriate, vigorous intensity aerobic training should be considered for women with BC receiving chemotherapy.


2006 ◽  
Vol 19 (2) ◽  
pp. 174-186 ◽  
Author(s):  
Regina Brigelius-Flohé

More than 80 years after the discovery of the essentiality of vitamin E for mammals, the molecular basis of its action is still an enigma. From the eight different forms of vitamin E, only α-tocopherol is retained in the body. This is in part due to the specific selection of RRR-α-tocopherol by the α-tocopherol transfer protein and in part by its low rate of degradation and elimination compared with the other vitamers. Since the tocopherols have comparable antioxidant properties and some tocotrienols are even more effective in scavenging radicals, the antioxidant capacity cannot be the explanation for its essentiality, at least not the only one. In the last decade, a high number of so-called novel functions of almost all forms of vitamin E have been described, including regulation of cellular signalling and gene expression. α-Tocopherol appears to be most involved in gene regulation, whereas γ-tocopherol appears to be highly effective in preventing cancer-related processes. Tocotrienols appear to be effective in amelioration of neurodegeneration. Most of the novel functions of individual forms of vitamin E have been demonstrated in vitro only and require in vivo confirmation. The distinct bioactivities of the various vitamers are discussed, considering their metabolism and the potential functions of metabolites.


2008 ◽  
Vol 115 (9) ◽  
pp. 283-293 ◽  
Author(s):  
Inga E. Schjerve ◽  
Gjertrud A. Tyldum ◽  
Arnt E. Tjønna ◽  
Tomas Stølen ◽  
Jan P. Loennechen ◽  
...  

Regular exercise training is recognized as a powerful tool to improve work capacity, endothelial function and the cardiovascular risk profile in obesity, but it is unknown which of high-intensity aerobic exercise, moderate-intensity aerobic exercise or strength training is the optimal mode of exercise. In the present study, a total of 40 subjects were randomized to high-intensity interval aerobic training, continuous moderate-intensity aerobic training or maximal strength training programmes for 12 weeks, three times/week. The high-intensity group performed aerobic interval walking/running at 85–95% of maximal heart rate, whereas the moderate-intensity group exercised continuously at 60–70% of maximal heart rate; protocols were isocaloric. The strength training group performed ‘high-intensity’ leg press, abdominal and back strength training. Maximal oxygen uptake and endothelial function improved in all groups; the greatest improvement was observed after high-intensity training, and an equal improvement was observed after moderate-intensity aerobic training and strength training. High-intensity aerobic training and strength training were associated with increased PGC-1α (peroxisome-proliferator-activated receptor γ co-activator 1α) levels and improved Ca2+ transport in the skeletal muscle, whereas only strength training improved antioxidant status. Both strength training and moderate-intensity aerobic training decreased oxidized LDL (low-density lipoprotein) levels. Only aerobic training decreased body weight and diastolic blood pressure. In conclusion, high-intensity aerobic interval training was better than moderate-intensity aerobic training in improving aerobic work capacity and endothelial function. An important contribution towards improved aerobic work capacity, endothelial function and cardiovascular health originates from strength training, which may serve as a substitute when whole-body aerobic exercise is contra-indicated or difficult to perform.


2014 ◽  
Vol 72 (11) ◽  
pp. 851-855 ◽  
Author(s):  
Michelle Dias Santos Santiago ◽  
Deusvenir de Souza Carvalho ◽  
Alberto Alain Gabbai ◽  
Mariana Machado Pereira Pinto ◽  
Andrea Regina Correa Moutran ◽  
...  

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.


Author(s):  
Parviz Shojaei ◽  
Mehran Ghahramani ◽  
Sirous Farsi

Objective: Obesity is a chronic disease characterized by an excessive mass of adipose tissue in the body. The present study aimed to investigate the relationship between different genotypes of VEGF gene and changes in aerobic capacity following aerobic exercise in obese women. Materials and Methods: In this study, 23 inactive women aged 34 to 43 years with BMI 30 and 35 were purposefully selected and participated in eight weeks of aerobic exercise including 4 sessions per week and 30 minutes per session with an intensity of 55 to 75% of maximum heart rate. Before and after the training period, aerobic power (VO2max) was measured by the modified Bruce test. Saliva Sample was collected at 12 hours of fasting to measure VEGF genotypes. To compare aerobic capacity between different genotypes, since we had three genotypes GG, CG, and CC, one-way analysis of variance was used. Results: Although the mean amount of aerobic power changes of GG genotype was somewhat higher after eight weeks of aerobic training than the other two genotypes, this difference was not significant. (P-value= 0.663, P-value= 0.873 and P-value= 0.173, respectively). Conclusion: Eight weeks of aerobic training leads to increased aerobic capacity in obese women and increased VEGF plays a role, but there is not seemingly a difference between different VEGF genotypes for these changes. In any case, since this study was conducted for the first time, we need more studies to draw a more accurate conclusion.


Hypertension ◽  
2016 ◽  
Vol 68 (suppl_1) ◽  
Author(s):  
Ralmony A Santos ◽  
Kleiton A Silva ◽  
Juliana D Perez ◽  
Nestor Schor ◽  
Dulce E Casarini ◽  
...  

Previous studies from our laboratory have demonstrated that chronic diabetes in rats results in cardiomyopathy, associated with sympathetic nervous system (SNS) hyperactivity. On the other hand, it is well known that the beneficial cardiovascular effects of exercise training in diabetes are due in part to normalization of the sympathetic outflow and improvement in the responsiveness of the myocardium to autonomic stimulation. Recently, resistance training (RT) has been recognized as a useful therapeutic tool for the treatment of chronic diseases and similar to aerobic exercise, has been reported to improve metabolic profile and body composition. Therefore, the aim of this study was to evaluate the effect of moderate-intensity RT on circulating and cardiac catecholamines concentration, to understand whether this type of exercise is also associated with cardiovascular protection. Wistar rats (3 months old) were randomized into: control (C), diabetic (D), diabetic + RPT (DR) and diabetic + APT (DA). Animals were made diabetic with a single tail injection of streptozotocin (STZ, 50 mg/Kg). Resistance exercise training was performed on a vertical ladder (5 days/week, 8 weeks) at 40-60% maximal load, and moderate aerobic training was performed on a treadmill (5 days/week, 8 weeks). Diabetes significantly increased plasma concentration of adrenaline (D: 5.3 ± 1.0 vs. C: 4.1 ± 0.6 ng/mL) and noradrenaline (D: 14.5 ± 0.2 vs. C: 3.1± 0.8 ng/mL), and both exercise modalities induced a significant reduction of them: adrenaline (DR: 1.1 ± 0.3; DA: 0.7 ± 0.16 vs. D: 5.3 ± 1.0 ng/mL) and noradrenaline (DR: 1.0 ± 0.2; DA: 0.7 ± 0.1 vs. D: 14.5 ± 0.2 ng/mL). Cardiac concentration of noradrenaline was also increased in diabetic group (D: 62 ± 7 vs. CS: 34 ± 6 pg/g) and only aerobic exercise was capable to reduce its concentration in heart tissue (DA: 30 ± 6 vs. D: 62 ± 7; DR: 55 ± 7 pg/g). The results from the present study show for the first time additional beneficial effects of RT on modulating SNS activity in diabetes. Moreover, considering that RT does not modulate cardiac catecholaminergic secretion, it also highlights the importance of aerobic training in diabetes treatment. Financial Support: FAPESP, CAPES, CNPq


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