karppaus.info

karppininjat
Tänään on 2021-06-21 17:40:58

Kaikki ajat ovat UTC+02:00




Aloita uusi ketju  Vastaa viestiin  [ 1 viesti ] 
Julkaisija Viesti
ViestiLähetetty: 2021-06-09 10:37:34 
Poissa
ruutana
ruutana

Liittynyt: 2007-05-25 15:55:11
Viestit: 24553
Body composition changes in physically active individuals consuming ketogenic diets: a systematic review


Lainaa:
Abstract
Background
To achieve ideal strength/power to mass ratio, athletes may attempt to lower body mass through reductions in fat mass (FM), while maintaining or increasing fat-free mass (FFM) by manipulating their training regimens and diets. Emerging evidence suggests that consumption of high-fat, ketogenic diets (KD) may be advantageous for reducing body mass and FM, while retaining FFM.

Methods
A systematic review of the literature was conducted using PubMed and Cochrane Library databases to compare the effects of KD versus control diets (CON) on body mass and composition in physically active populations. Randomized and non-randomized studies were included if participants were healthy (free of chronic disease), physically active men or women age ≥ 18 years consuming KD (< 50 g carbohydrate/d or serum or whole blood β-hydroxybutyrate (βhb) > 0.5 mmol/L) for ≥14 days.

Results
Thirteen studies (9 parallel and 4 crossover/longitudinal) that met the inclusion criteria were identified. Aggregated results from the 13 identified studies show body mass decreased 2.7 kg in KD and increased 0.3 kg in CON. FM decreased by 2.3 kg in KD and 0.3 kg in CON. FFM decreased by 0.3 kg in KD and increased 0.7 kg in CON. Estimated energy balance based on changes in body composition was − 339 kcal/d in KD and 5 kcal/d in CON. Risk of bias identified some concern of bias primarily due to studies which allowed participants to self-select diet intervention groups, as well as inability to blind participants to the study intervention, and/or longitudinal study design.

Conclusion
KD can promote mobilization of fat stores to reduce FM while retaining FFM. However, there is variance in results of FFM across studies and some risk-of-bias in the current literature that is discussed in this systematic review.



Ylös
   
Näytä viestit ajalta:  Järjestä  
Aloita uusi ketju  Vastaa viestiin  [ 1 viesti ] 

Kaikki ajat ovat UTC+02:00


Paikallaolijat

Käyttäjiä lukemassa tätä aluetta: Ei rekisteröityneitä käyttäjiä ja 5 vierailijaa


Et voi kirjoittaa uusia viestejä
Et voi vastata viestiketjuihin
Et voi muokata omia viestejäsi
Et voi poistaa omia viestejäsi
Et voi lähettää liitetiedostoja

Etsi tätä:
Hyppää:  
Keskustelufoorumin ohjelmisto phpBB® Forum Software © phpBB Limited
Käännös: phpBB Suomi (lurttinen, harritapio, Pettis)