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Effects of a ketogenic diet on body composition and strength in trained women.


ABSTRACT: BACKGROUND:The effect of ketogenic diets (KD) on body composition in different populations has been investigated. More recently, some have recommended that athletes adhere to ketogenic diets in order to optimize changes in body composition during training. However, there is less evidence related to trained women. We aimed to evaluate the effect of a KD on body composition and strength in trained women following an eight-week resistance training (RT) program. METHODS:Twenty-one strength-trained women (27.6?±?4.0?years; 162.1?±?6.6?cm; 62.3?±?7.8?kg; 23.7?±?2.9?kg·m-?2) were randomly assigned to either a non-KD group (n?=?11, NKD) or a KD group (n?=?10, KD). Study outcomes included body composition as measured by dual-energy X-ray absorptiometry (DXA), strength levels measured using one maximum repetition (RM) in back squat and bench press (BP), and countermovement jump (CMJ) measured on a force plate. RESULTS:A significant reduction in fat mass was observed in KD (-?1.1?±?1.5?kg; P?=?0.042; d?=?-?0.2) but not in NDK (0.3?±?0.8?kg; P?=?0.225; d?=?0.1). No significant changes in fat-free mass were observed in KD (-?0.7?±?1.7?kg; P?=?0.202; d?=?-?0.1) or NKD (0.7?±?1.1?kg; P?=?0.074; d?=?0.2), but absolute changes favored NKD. No significant changes in BP were observed in KD (1.5?±?4.6?kg; P?=?0.329; d?=?0.2), although significant changes were noted in the squat and CMJ (5.6?±?7.6?kg; P?=?0.045; d?=?0.5 and 2.2?±?1.7?kg; P?=?0.022; d?=?0.6, respectively). In contrast, NKD showed significant increases in BP (4.8?±?1.8; P?

SUBMITTER: Vargas-Molina S 

PROVIDER: S-EPMC7146906 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Effects of a ketogenic diet on body composition and strength in trained women.

Vargas-Molina Salvador S   Petro Jorge L JL   Petro Jorge L JL   Romance Ramón R   Kreider Richard B RB   Schoenfeld Brad J BJ   Bonilla Diego A DA   Benítez-Porres Javier J  

Journal of the International Society of Sports Nutrition 20200410 1


<h4>Background</h4>The effect of ketogenic diets (KD) on body composition in different populations has been investigated. More recently, some have recommended that athletes adhere to ketogenic diets in order to optimize changes in body composition during training. However, there is less evidence related to trained women. We aimed to evaluate the effect of a KD on body composition and strength in trained women following an eight-week resistance training (RT) program.<h4>Methods</h4>Twenty-one str  ...[more]

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