Foruzan Zahedmanesh; Khadijeh Nasiri; Vliollah Dabidi Roshan
Abstract
Background and Aim: COVID-19 prevalence has a tremendous effect on almost all aspect of human life and wearing respiratory facemasks are recommended as a means of virus control. The aim of the current study was to examine the effect of using medical masks on cardiovascular responses and rating of perceived ...
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Background and Aim: COVID-19 prevalence has a tremendous effect on almost all aspect of human life and wearing respiratory facemasks are recommended as a means of virus control. The aim of the current study was to examine the effect of using medical masks on cardiovascular responses and rating of perceived exertion (RPE) in healthy women during a submaximal exercise (SE) protocol. Materials and Methods: This randomized study conducted to evaluate the effects of respiratory facemasks (N95 versus surgical), or no mask status, following a submaximal exercise (with 60 to 70% intensity of maximal heart rate) in three groups of healthy volunteers females (mean age and body mass index of 28.3±6 years and 23±3 kg/m2, respectively). Participants divided into submaximal exercise+N95 mask, submaximal exercise+surgical mask, and submaximal exercise+Nomask groups. Cardiovascular parameters including QRS duration, QT interval, ST segment, and P wave duration were assessed by an electrocardiogram system; then data were analyzed using one-way analysis of variance and Tukey tests at the significant level of p≤0.05. Result: Wearing face masks had no effect on SPO2% (p=0.77), heart rate (p=0.34), QT distance (p=0.64), ST segment (p=0.58), QRS wavelength (p=0.67), and P wavelength (p=0.45)) following SE on treadmill. Values of RPE in the N95 mask group increased significantly as compared to the NoMask (p=0.006) group; while it increased insignificantly when compared to the surgical mask (p=0.06) group. Conclusion: Wearing a surgical facemask, specifically surgical facemask, during a submaximal exercise protocol does not have a detrimental effects on cardiovascular markers and performance of healthy women.
Ahmad Parsaeifar; Vliollah Dabidi Roshan
Abstract
Background and Aim: Some cytokines are introduced as the predictors of cardiovascular disease risk factors. The aim of this study was to investigate the effect of 8 weeks of aerobic and interval training on serum TNF-ɑ, IL-6 and hs-CRP levels in female basketball players. Materials and Methods: Thirty ...
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Background and Aim: Some cytokines are introduced as the predictors of cardiovascular disease risk factors. The aim of this study was to investigate the effect of 8 weeks of aerobic and interval training on serum TNF-ɑ, IL-6 and hs-CRP levels in female basketball players. Materials and Methods: Thirty eight healthy female basketball players voluntarily participated in this study, and further they randomly divided into three groups including continuous, interval and control groups. Blood samples were collected in both pre and post-test after 12 hours of fasting. Continuous and interval training were performed 3 times per week for eight weeks. Results: Eight weeks of continuous and interval training significantly reduced serum IL-6, TNF-ɑ and hs-CRP levels (p<0.05); while these variables had no significant effect in the control group (p>0.05). Moreover, significant difference were found for IL-6 levels between continuous and control group (p=0.005). The same result also were found for TNF-α levels between interval and control groups (p=0.001) as well as also between continuous training and control group (p=0.03). The mean changes of hs-CRP showed a significant difference between interval and control group (p=0.0001) and also between interval and continuous training group (p=0.01). In this way, Interval training versus aerobic training led to further decrease in levels of IL-6 (20% vs. 13.19%), TNF-α (42.12% vs 29.31%) and hs-CRP (52.17% vs 21.17%), respectively. Conclusion: Both of aerobic and interval training during eight weeks could significantly decreased inflammatory cytokines levels, moreover, interval training made the most changes in these cytokines. Therefore, continuous and interval training are recommended to prevent and control cardiovascular disease risk factors.
Mahbobeh Baratpor; Valiollah Dabidi Roshan; Niloofar Karimi
Abstract
Background and aim: Various studies indicated increases in systemic inflammation after the intensive strength training, but the effects of the oral Ginger supplement on pro-inflammatory cytokines and acute phase proteins in immediate and 24 hours following strength exercise are not well known. The aim ...
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Background and aim: Various studies indicated increases in systemic inflammation after the intensive strength training, but the effects of the oral Ginger supplement on pro-inflammatory cytokines and acute phase proteins in immediate and 24 hours following strength exercise are not well known. The aim of this study was to investigate the effect of short-term Ginger supplement on markers related to systemic inflammation (interferon gamma and serum Amyloid A [SAA]) as markers of inflammatory and interlokin-2 [IL-2] as an index anti-inflammatory), in the immediate and 24 hr of the Oxford strength exercise in trained men. Materials and Methods: Twenty subjects in a longitudinal design were divided randomly into two groups; the Oxford strength exercise group (experimental) with and without Ginger supplementation, and or the Oxford strength exercise group (placebo) with and without placebo (Starch). Both groups performed the Oxford strength exercise protocol before and after supplementation and or/ placebo period with similar conditions. The subjects of the experimental group orally received 3 capsules (each capsule contained 1000 mg) of Ginger rhizome powder per week. Blood samples were collected at before, immediate and 24 hr after the Oxford strength exercise. Results: Oxford strength exercise in both the experimental and placebo groups significantly increased in the interferon gamma, SSA and IL-2 in immediate and 24 hr after strength exercise, as compared to baseline (resting) levels. However, Ginger supplementation caused attenuates Oxford exercise–induced inflammation. Conclusion: Progressive resistance exercise induced systemic inflammation 24 hr after training and Ginger supplementation was a alternative method for alleviate the effects of exercise-induced inflammation.
