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Ketogenic diet does not affect strength performance in elite artistic gymnasts

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dc.contributor.author Paoli, A en
dc.contributor.author Grimaldi, K en
dc.contributor.author D'Agostino, D en
dc.contributor.author Cenci, L en
dc.contributor.author Moro, T en
dc.contributor.author Bianco, A en
dc.contributor.author Palma, A en
dc.date.accessioned 2014-03-01T02:09:26Z
dc.date.available 2014-03-01T02:09:26Z
dc.date.issued 2012 en
dc.identifier.issn 15502783 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/29843
dc.subject Body composition en
dc.subject Gymnastic en
dc.subject Strength en
dc.subject Very low carbohydrate ketogenic diet en
dc.subject Weight loss en
dc.title Ketogenic diet does not affect strength performance in elite artistic gymnasts en
heal.type journalArticle en
heal.identifier.primary 10.1186/1550-2783-9-34 en
heal.identifier.secondary http://dx.doi.org/10.1186/1550-2783-9-34 en
heal.identifier.secondary 34 en
heal.publicationDate 2012 en
heal.abstract Background: Despite the increasing use of very low carbohydrate ketogenic diets (VLCKD) in weight control and management of the metabolic syndrome there is a paucity of research about effects of VLCKD on sport performance. Ketogenic diets may be useful in sports that include weight class divisions and the aim of our study was to investigate the influence of VLCKD on explosive strength performance.Methods: 8 athletes, elite artistic gymnasts (age 20.9 ± 5.5 yrs) were recruited. We analyzed body composition and various performance aspects (hanging straight leg raise, ground push up, parallel bar dips, pull up, squat jump, countermovement jump, 30 sec continuous jumps) before and after 30 days of a modified ketogenic diet. The diet was based on green vegetables, olive oil, fish and meat plus dishes composed of high quality protein and virtually zero carbohydrates, but which mimicked their taste, with the addition of some herbal extracts. During the VLCKD the athletes performed the normal training program. After three months the same protocol, tests were performed before and after 30 days of the athletes' usual diet (a typically western diet, WD). A one-way Anova for repeated measurements was used.Results: No significant differences were detected between VLCKD and WD in all strength tests. Significant differences were found in body weight and body composition: after VLCKD there was a decrease in body weight (from 69.6 ± 7.3 Kg to 68.0 ± 7.5 Kg) and fat mass (from 5.3 ± 1.3 Kg to 3.4 ± 0.8 Kg p < 0.001) with a non-significant increase in muscle mass.Conclusions: Despite concerns of coaches and doctors about the possible detrimental effects of low carbohydrate diets on athletic performance and the well known importance of carbohydrates there are no data about VLCKD and strength performance. The undeniable and sudden effect of VLCKD on fat loss may be useful for those athletes who compete in sports based on weight class. We have demonstrated that using VLCKD for a relatively short time period (i.e. 30 days) can decrease body weight and body fat without negative effects on strength performance in high level athletes. © 2012 Paoli et al.; licensee BioMed Central Ltd. en
heal.journalName Journal of the International Society of Sports Nutrition en
dc.identifier.doi 10.1186/1550-2783-9-34 en
dc.identifier.volume 9 en


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