Exertion in Kangoo Jumps Aerobic: Evaluation and Interpretation Using Spectroscopic Technique Determinations by Cristina Popa, Mihai Patachia, Stefan Banita, Dan Constantin Dumitras

“…Because it is not possible to directly measure free radicals in the body, we approach that by measuring the by-products (breath ethylene) that result from free radical reactions. We found out that the mixture of exhaled breath in women's after the KJ exercises contains low concentration of ethylene compared to the exhaled breath of the women before the start of exercise program. …”
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Antioxidant activity and phytochemical profiling of peaches, Arabica coffee, and their combination by Dhea Angela Putri, Himmi Marsiati

“…Antioxidant compounds scavenge unstable free radical reactions and are abundant in certain plants. …”
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Investigation of CO2 Extract of Portulaca oleracea for Antioxidant Activity from Raw Material Cultivated in Kazakhstan by Meruyert I. Tleubayeva, Raisa M. Abdullabekova, Ubaidilla М. Datkhayev, Margarita Yu. Ishmuratova, Mereke B. Alimzhanova, Kaldanay K. Kozhanova, Aida M. Seitaliyeva, Kairat S. Zhakipbekov, Zhanar B. Iskakova, Elmira A. Serikbayeva, Elena V. Flisyuk

“…Antioxidants are substances capable of delaying, retarding, and preventing the oxidation of lipids or substances that delay or prevent free radical reactions during lipid oxidation. Natural antioxidants such as ascorbic acid, tocopherol, phenolic compounds, and flavonoids are a safe alternative to chemical antioxidants. …”
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INTENSITY OF NITRIC OXIDE SYNTHESIS IN THE BLOOD OF RATS UNDER THE INFLUENCE OF SODIUM FLUORIDE by I.L. Kolisnyk

“…It is known that when the rate of free radical reactions in the body increases, NO can react with a superoxide anion radical to form peroxynitrite, a highly reactive compound with destructive properties against proteins and lipids. …”
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Redox Metabolism and Autonomic Regulation During Aging: Can Heart Rate Variability Be Used to Monitor Healthy Longevity? by Olha Yelisyeyeva, Danylo Kaminskyy, Marta Semen, Ilona Chelpanova, Khrystyna O. Semen

“…Excessive activation of free radical reactions accompanied by the inability of the antioxidant defense (AOD) mechanisms to control the flow of the reactive oxygen species (ROS) leads to the persistence of oxidative stress, hypoxia, impaired mitochondrial energy function and reduced ATP potential. …”
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