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Iranian Journal of Public Health، جلد ۴۴، شماره ۹، صفحات ۱۲۷۰-۱۲۷۶
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عنوان انگلیسی Cardioprotective Effect of High Intensity Interval Training and Nitric Oxide Metabolites (NO2-, NO3-)
چکیده انگلیسی مقاله Background: The aim of this study was to investigate the effects of High-Intensity Interval Training (HIIT) on nitric oxide metabolites (NO2 - , NO3 - ) and myocardial infarct size after Ischemia/Reperfusion (I/R) injury in healthy male rats. Methods: A total of 44 Wistar rats were randomly divided into 4 groups including HIIT (n=8), HIIT + IR protocol (n=14), control (n=8), and control + IR (n=14). Each training session of HIIT consisted of 1 hour of exercise in three stages: 6-minute running at 50-60% VO2max for warm-up; 7 intervals of 7-minute running on treadmill with a slope of 5 0 to 20° (4 minutes with an intensity of 80-100% VO2max and 3 minutes at 50-60% VO2max); and 5-minute running at 50-60% VO2max for cool-down. The control group did not participate in any exercise program. Nitric Oxide (NO) and its metabolites were measured by using Griess reaction test. Results: The results showed that eight weeks of exercise training exerted a significantly increasing effect on nitrite (8.55 µmol per liter, equivalent to 34.79%), nitrate (62.02 µmol per liter, equivalent to 149.48%), and NOx (66 µmol per liter, equivalent to 98.11%) in the HIIT group compared with the control group. The results showed myocardial infract size (IS) was significantly smaller (23.2%, P < 0.001) in the exercise training group compared with the control group. Conclusion: Incremental changes in NO-NO 3 - , NO 2 - axis are one of mechanisms through which HIIT program can protect the heart from I/R injury and decrease myocardial infarction.
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نویسندگان مقاله علی اصغر فلاحی | aliasghar fallahi


عباسعلی گایینی | abbasali gaeini


شهناز شکرفروش | shahnaz shekarfroush


علی خوش باطن | ali khoshbaten


نشانی اینترنتی http://ijph.tums.ac.ir/index.php/ijph/article/view/3398
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زبان مقاله منتشر شده en
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