Effects of a 12-Week Very-Low Carbohydrate High-Fat Diet on Maximal Aerobic Capacity, High-Intensity Intermittent Exercise, and Cardiac Autonomic Regulation: Non-randomized Parallel-Group Study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17450%2F19%3AA20020UX" target="_blank" >RIV/61988987:17450/19:A20020UX - isvavai.cz</a>

Výsledek na webu

<a href="https://www.frontiersin.org/articles/10.3389/fphys.2019.00912/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fphys.2019.00912/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fphys.2019.00912" target="_blank" >10.3389/fphys.2019.00912</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of a 12-Week Very-Low Carbohydrate High-Fat Diet on Maximal Aerobic Capacity, High-Intensity Intermittent Exercise, and Cardiac Autonomic Regulation: Non-randomized Parallel-Group Study

Popis výsledku v původním jazyce

Purpose: The aim of this non-randomized parallel group study was to examine the 12 week effects of a very low-carbohydrate high-fat diet (VLCHF) on maximal cardiorespiratory capacity, high-intensity interval training (HIIT) performance, and cardiac autonomic regulation.Methods: Twenty-four recreationally trained participants allocated to either a VLCHF (N = 12) or a habitual diet (HD; N = 12) group completed 12 weeks of a diet and exercise (VLCHF) or an exercise only intervention (HD). Maximal graded exercise tests (GXT) were performed at baseline, after 4, 8, and 12 weeks. A supervised HIIT session and the 30-15 Intermittent Fitness Test (30-15(IFT)) were conducted once a week.Results: Total time to exhaustion (TTE) in both GXT and 30-15(IFT) largely increased in both VLCHF (p = 0.005, BF10 = 11.30 and p = 0.001, BF10 >= 100, respectively) and HD (p = 0.018, BF10 = 3.87 and p = 0.001, BF10 >= 100, respectively) groups after 12 weeks. Absolute maximal oxygen uptake (&lt;(V)over dot&gt;O-2max) was not changed in both groups but relative &lt;(V)over dot&gt;O-2max increased in VLCHF in concert with reductions in body mass (66.7 +/- 10.2-63.1 +/- 8.5 kg). Cardiac autonomic regulation did not reveal any between-roup differences after 12 weeks. VLCHF diet induced an increase in beta-hydroxybutyrate, which tended to normalize during the intervention period.Conclusion: The 12 week VLCHF diet did not impair high-intensity continuous or intermittent exercise lasting up to 25 min, nor did it impair maximal cardiorespiratory performance or autonomic nervous system (ANS) activity.

Název v anglickém jazyce

Effects of a 12-Week Very-Low Carbohydrate High-Fat Diet on Maximal Aerobic Capacity, High-Intensity Intermittent Exercise, and Cardiac Autonomic Regulation: Non-randomized Parallel-Group Study

Popis výsledku anglicky

Purpose: The aim of this non-randomized parallel group study was to examine the 12 week effects of a very low-carbohydrate high-fat diet (VLCHF) on maximal cardiorespiratory capacity, high-intensity interval training (HIIT) performance, and cardiac autonomic regulation.Methods: Twenty-four recreationally trained participants allocated to either a VLCHF (N = 12) or a habitual diet (HD; N = 12) group completed 12 weeks of a diet and exercise (VLCHF) or an exercise only intervention (HD). Maximal graded exercise tests (GXT) were performed at baseline, after 4, 8, and 12 weeks. A supervised HIIT session and the 30-15 Intermittent Fitness Test (30-15(IFT)) were conducted once a week.Results: Total time to exhaustion (TTE) in both GXT and 30-15(IFT) largely increased in both VLCHF (p = 0.005, BF10 = 11.30 and p = 0.001, BF10 >= 100, respectively) and HD (p = 0.018, BF10 = 3.87 and p = 0.001, BF10 >= 100, respectively) groups after 12 weeks. Absolute maximal oxygen uptake (&lt;(V)over dot&gt;O-2max) was not changed in both groups but relative &lt;(V)over dot&gt;O-2max increased in VLCHF in concert with reductions in body mass (66.7 +/- 10.2-63.1 +/- 8.5 kg). Cardiac autonomic regulation did not reveal any between-roup differences after 12 weeks. VLCHF diet induced an increase in beta-hydroxybutyrate, which tended to normalize during the intervention period.Conclusion: The 12 week VLCHF diet did not impair high-intensity continuous or intermittent exercise lasting up to 25 min, nor did it impair maximal cardiorespiratory performance or autonomic nervous system (ANS) activity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30306 - Sport and fitness sciences

Projekt

<a href="/cs/project/GA18-08358S" target="_blank" >GA18-08358S: Vliv nízko sacharidové diety na zdraví, sportovní výkon a s tím související psychologické ukazatele kvality života</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

FRONTIERS IN PHYSIOLOGY

ISSN

1664-042X

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

912

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000475944500002

EID výsledku v databázi Scopus

2-s2.0-85069917338