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Öğe Effect of vitamin C supplementation on various elements in elite taekwondo players(EDIZIONI MINERVA MEDICA, 2012) Patlar, S.; Boyali, E.; Baltaci, A. K.; Mogulkoc, R.; Gunay, M.Aim. Nutrition of elite athletes is important for their performance, as well as physical and mental functions. Long-term vitamin deficiency is known to lead to a decrease in the performance of athletes. The present study aims to examine the effects of vitamin C supplementation on the distribution of some elements in the serum of individuals engaged in taekwondo. Methods. The study registered 7 male elite taekwondo players, whose mean age was 21.56 +/- 0.28 years, mean weight was 65.67 +/- 2.07 (kg) and mean duration of involvement in sports was 10-12 years. Subjects in the study were supplemented with 300 mg oral vitamin C (L-ascorbic acid) for 6 weeks. Resting blood samples collected from all subjects twice, once before and once after supplementation, were analyzed to find out serum levels of cobalt, boron, cadmium, chromium, nickel, manganese, molybdenum, copper, iron, zinc, phosphorus, sodium, potassium and calcium (mg/L), using an atomic emission device. Result. Six-week vitamin C supplementation brought about a significant decrease in boron and potassium levels (p < 0.001) and an increase in iron levels (p < 0.001). Other parameters analyzed were not affected by vitamin C supplementation. Conclusions. The results of research have show that C vitamin supplementation in male taekwondo sportmen affects especially iron and boron metabolism, but has limited affects on serum levels of the other elementsÖğe Effect of zinc supplementation on lipid peroxidation and lactate levels in rats with diabetes induced by streptozotocin and subjected to acute swimming exercise(COMENIUS UNIV, 2012) Bicer, M.; Gunay, M.; Baltaci, A. K.; Uney, K.; Mogulkoc, R.; Akil, M.Objective: The present study aims to explore the effect of zinc supplementation on lipid peroxidation and lactate levels in rats having diabetes induced by streptozotocin and subjected to acute swimming exercise Method: A total of 80 adult male rats of Sprague-Dawley type were equally allocated to 8 groups: Group 1, general control. Group 2, zinc-supplemented group. Group 3, zinc-supplemented, diabetic group. Group 4, swimming control group. Group 5, zinc-supplemented swimming group. Group 6, zinc-supplemented diabetic swimming group. Group 7, diabetic swimming group. Group 8, diabetic group. At the end of the 4-week study, blood samples were collected to determine MDA, GSH, GPx, SOD, lactate and zinc levels. Results: The highest MDA values were found in group 7 and 8 (p<0.001). GSH values in groups 5 and 6 were higher (p<0.001). The highest GPx values were established in groups 2, 5 and 6 (p<0.001). SOD values were the highest in groups 5 and 6 (p<0.001) and lowest in groups 2, 3 and 8 (p<0.001). The highest plasma lactate levels were found in group 7 (p<0.001). The highest zinc levels were obtained in groups 1,2 and 5 (p<0.001), and the lowest zinc levels were found in groups 7 and 8 (p<0.001). Conclusion: Results of the study reveal that zinc supplementation prevents the increase in free radical formation, suppression of antioxidant activity and muscle exhaustion, all of which result from diabetes and acute exercise. Zinc supplementation may contribute to health and performance in diabetes and acute exercise (Tab. 2, Fig. 1 Ref. 47). Full Text in PDF www.elis.sk.Öğe Examination on the anthropometric features and somatotypes of the male children at the age of 16(ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2011) Polat, Y.; Bicer, M.; Patlar, S.; Akil, M.; Gunay, M.; Celenk, C.Objectives.-The aim of the study is to examine the anthropometric values and the somatotypes of male children from different branches in physical education lessons and regular movement training. Methods.-Two hundred and eighteen volunteer subjects at the age of 16, namely, 68 soccer players, 89 persons practising fitness and 70 sedentary have participated in the study. In the research, sitting height, crawl length, body width parameters, body environment and sonnatotypic parameters of the subjects are measured. In this work, the highest humeral width value is achieved by the soccer group, where it is found to be no different from the fitness group (P > 0.05) and to be significantly higher than the sedentary group (P < 0.05). When femur width parameter is examined, it is determined that the soccer group is higher than the other two groups and that the fitness group is significantly higher than the sedentary group. In the study, while the highest endomorph value is obtained from sedentary group, it is found to be significantly higher than the other two groups (P < 0.05). While the highest mesomorph value is achieved from soccer group and the lowest value is achieved from sedentary group, it is determined that each of these three groups is significantly different from one another (P < 0.05). While the highest ectomorph value is achieved from fitness group (P < 0.05), it is found to be significantly higher than the other two groups (P < 0.05). Conclusions.-Consequently, it can be said that the soccer players have more optimal dimension, environment and somatotypical structure when compared to those practising fitness and the sedentary group (P < 0.05). (C) 2010 Elsevier Masson SAS. All rights reserved.Öğe Protective effect of melatonin on lipid peroxidation in various tissues of diabetic rats subjected to an acute swimming exercise(COMENIUS UNIV, 2012) Bicer, M.; Akil, M.; Baltaci, A. K.; Mogulkoc, R.; Sivrikaya, A.; Gunay, M.; Akkus, H.Background: The present study aimed to explore the effect of melatonin administration on lipid peroxidation in various tissues of rats with streptozocin induced diabetes and subjected to an acute swimming exercise. Methods: The study used 80 adult male rats, which were equally allocated to 8 groups: Group 1, general control; Group 2, melatonin-administered control; Group 3, melatonin-administered diabetic control; Group 4, swimming control; Group 5, melatonin-administered swimming; Group 6, melatonin-administered diabetic swimming; Group 7, diabetic swimming; Group 8, diabetic control. Diabetic rats were administered 3 mg/kg/day ip melatonin for 4 weeks. At the end of the study, the animals were decapitated to collect samples from liver, lung and spleen tissues, which were then analyzed to determine levels of liver MDA (nmol/gram/protein) and GSH (mg/g/protein). Results: The highest MDA values in liver, lung and spleen tissues were obtained in the Group 7. The values in the Group 8 were lower than those in the Group 7, but higher than in all other groups. The Group 5 and 6 had the highest liver, lung and spleen GSH values. Conclusion: Results obtained from the study indicate that the increase in free radical production and the inhibition of antioxidant activity in diabetes and acute exercise are both prevented by melatonin administration (Tab. 2, Ref. 30). Full Text in PDF www.elis.sk.