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Effect of different intensities of physical activity on cardiometabolic markers and vascular and cardiac function in adult rats fed with a high-fat high-carbohydrate diet

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Journal of Sport and Health Science 2018年第1期7卷 109-119页

作者： romeo b.batacan jr Mitch J.Duncan Vincent J.Dalbo Geraldine L.buitrago Andrew S.Fenning School of Medical and Applied Sciences Central Queensland University Centre for Physical Activity Studies Central Queensland University School of Medicine & Public Health Priority Research Centre for Physical Activity and Nutrition Faculty of Health and MedicineThe University of Newcastle University Drive Clinical biochemistry Laboratory Central Queensland University Centre for biodiscovery and Molecular Development of Therapeutics Australian Institute of Tropical Health and MedicineJames Cook University

background: Physical activity(PA) and diet are 2 lifestyle factors that affect cardiometabolic risk. However, data on how a high-fat highcarbohydrate(HFHC) diet influences the effect of different intensities of PA on cardiometabolic health and cardiovascular function in a controlled setting are yet to be fully established. This study investigated the effect of sedentary behavior, light-intensity training(LIT), and high-intensity interval training(HIIT) on cardiometabolic markers and vascular and cardiac function in HFHC-fed adult rats.Methods: Twelve-week-old Wistar rats were randomly allocated to 4 groups(12 rats/group): control(CTL), sedentary(SED), LIT, and HIIT.biometric indices, glucose and lipid control, inflammatory and oxidative stress markers, vascular reactivity, and cardiac electrophysiology of the experimental groups were examined after 12 weeks of HFHC-diet feeding and PA interventions.Results: The SED group had slower cardiac conduction(p = 0.0426) and greater thoracic aortic contractile responses(p both p bserved between groups. These findings suggest that few positive health effects can be achieved through LIT and HIIT when consuming a chronic and sustained HFHC diet.

关键词：高脂肪心脏老鼠食谱脉管标记成年物理

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