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Effects of 30 days of ketogenic diet on body composition, muscle strength, muscle area, metabolism, and performance in semi-professional soccer players [Elektronski vir]Paoli, Antonio ...Background A ketogenic diet (KD) is a nutritional approach, usually adopted for weight loss, that restricts daily carbohydrates under 30 g/day. KD showed contradictory results on sport performance, ... whilst no data are available on team sports. We sought to investigate the influence of a KD on different parameters in semi-professional soccer players. Methods Subjects were randomly assigned to a iso-protein (1.8 g/Kg body weight/day) ketogenic diet (KD) or western diet (WD) for 30 days. Body weight and body composition, resting energy expenditure (REE), respiratory exchange ratio (RER), cross sectional area (CSA) and isometric muscle strength of quadriceps, counter movement jump (CMJ) and yoyo intermittent recovery test time were measured. Results There was a significantly higher decrease of body fat (p = 0.0359), visceral adipose tissue (VAT) (p = 0.0018), waist circumference (p = 0.0185) and extra-cellular water (p = 0.0060) in KD compared to WD group. Lean soft tissue, quadriceps muscle area, maximal strength and REE showed no changes in both groups. RER decreased significantly in KD (p = 0.0008). Yo-yo intermittent test improved significantly (p < 0.0001) in both groups without significant differences between groups. CMJ significantly improved (p = 0.0021) only in KD. Conclusions This is the first study investigating the effects of a KD on semi-professional soccer players. In our study KD athletes lost fat mass without any detrimental effects on strength, power and muscle mass. When the goal is a rapid weight reduction in such athletes, the use of a KD should be taken into account.Source: Journal of the International Society of Sports Nutrition [Elektronski vir]. - ISSN 1550-2783 (Vol. 18, art. 62, 2021, str. 1-13)Type of material - e-article ; adult, seriousPublish date - 2021Language - englishCOBISS.SI-ID - 93528067
Author
Paoli, Antonio |
Mancin, Laura |
Caprio, Massimiliano |
Monti, Elena |
Narici, Marco Vicenzo |
Cenci, Lorenzo |
Piccini, Fabio |
Pincella, Matteo |
Grigoletto, Davide |
Marcolin, Giuseppe
Topics
prehrana |
ketogena dieta |
Yo-yo prekinjajoči test |
metabolizem |
telesna sestava |
mišični presek |
nogometaši |
nutrition |
ketogenic diet |
Yo-yo intermittent test |
metabolism |
body composition |
muscle cross sectional area |
soccer players
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Paoli, Antonio | ![]() |
Mancin, Laura | ![]() |
Caprio, Massimiliano | ![]() |
Monti, Elena | ![]() |
Narici, Marco Vicenzo | 38863 |
Cenci, Lorenzo | ![]() |
Piccini, Fabio | ![]() |
Pincella, Matteo | ![]() |
Grigoletto, Davide | ![]() |
Marcolin, Giuseppe | ![]() |
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