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Danes je Pe dec 06, 2019 16:48

Še ena nova o pozitivnih vplivh HMB

Moderatorji: UrosS, Metka, Stasa, Grom

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Grom

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Šefe

Vnosov: 63896

Pridružen: Če sep 23, 2004 18:35

Odgovor Pe jul 31, 2015 11:46

Še ena nova o pozitivnih vplivh HMB

pri tistih ki trenirajo intenzivno ali/in zelo pogosto

The efficacy of a β-hydroxy-β-methylbutyrate supplementation on physical capacity, body composition and biochemical markers in elite rowers: a randomised, double-blind, placebo-controlled crossover study

Krzysztof Durkalec-Michalski12* and Jan Jeszka1

* Corresponding author: Krzysztof Durkalec-Michalski durkmich@up.poznan.pl

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Journal of the International Society of Sports Nutrition 2015, 12:31 doi:10.1186/s12970-015-0092-9
Published: 30 July 2015
Abstract
Background

β-hydroxy-β-methylbutyric acid (HMB) is an interesting supplement in sports. However, literature sources present a limited number of studies that verify the efficacy of HMB intake over a longer time period among endurance athletes. For this reason, the aim of this study was to assess the effect of HMB supplementation on physical capacity, body composition and levels of biochemical markers in rowers.
Methods

Sixteen elite male rowers were administered a 12-week HMB supplementation (3×1 g HMB  · day −1 ) and placebo administration (PLA) following the model of a randomised, placebo controlled, double-blind crossover study with a 10 days washout period. Over the course of the experiment, aerobic (maximal oxygen uptake, ventilatory threshold) and anaerobic (anaerobic power indices) capacity were determined, while analyses were conducted on body composition as well as levels of creatine kinase, lactate dehydrogenase, testosterone, cortisol and the T/C ratio. A normal distribution of variables was tested using the paired 2-tailed t-tests; the Mann–Whitney U-test or the Wilcoxon-signed rank test were applied for non-normally distributed variables.
Results

Following HMB supplementation, <a onClick="popup('http://www.jissn.com/content/12/1/31/mathml/M1','MathML',630,470);return false;" target="_blank" href="http://www.jissn.com/content/12/1/31/mathml/M1">View MathML</a> increased (+2.7 mL · min −1  · kg −1 ) significantly (p < 0.001) in comparison to its reduction after PLA (−1.0 mL · min −1  · kg −1 ). In turn, at the ventilatory threshold, a longer time was required to reach this point (+1.2 min HMB vs. −0.2 min PLA , p = 0.012), while threshold load (+0.42 W · kg −1HMB vs. −0.06 W · kg −1PLA , p = 0.002) and threshold heart rate (+9 bpm HMB vs. +1 bpm PLA , p < 0.001) increased. After HMB supplementation, fat mass decreased (−0.9 kg HMB vs. +0.8 kg PLA , p = 0.03). In relation to the initial values after HMB supplementation, the refusal time to continue in the progressive test was extended (p = 0.04), maximum load (p = 0.04) and anaerobic peak power (p = 0.02) increased. However, in relation to the placebo, no differences were observed in anaerobic adaptation or blood marker levels.
Conclusions

The results indicate that HMB intake in endurance training has an advantageous effect on the increase in aerobic capacity and the reduction of fat mass. It may also stimulate an increase in peak anaerobic power, while it seems to have no effect on other indices of anaerobic adaptation and levels of investigated markers in the blood.
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Grom

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Šefe

Vnosov: 63896

Pridružen: Če sep 23, 2004 18:35

Odgovor Pe jul 31, 2015 11:48

Re: Še ena nova o pozitivnih vplivh HMB

osebno že nekaj časa uporabljam kombiancijo

10 g Maxximum BCAA + 3 g HMB v prahu od BTN okoli treninga in se defintivno pozna na regeneraciji
Vabljeni na moje spletne strani: www.gaspergrom.com
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mbdejan

Mlečnozobec

Vnosov: 158

Pridružen: To avg 14, 2007 10:48

Odgovor To avg 25, 2015 11:45

Re: Še ena nova o pozitivnih vplivh HMB

A je kakšna razlika med prahom in tabletami HMB?
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Grom

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Šefe

Vnosov: 63896

Pridružen: Če sep 23, 2004 18:35

Odgovor To avg 25, 2015 12:16

Re: Še ena nova o pozitivnih vplivh HMB

vejretno nekaj razlike v času absorbicje
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fizikalc

Senior Member

Vnosov: 798

Pridružen: Če okt 20, 2011 16:51

Odgovor To avg 25, 2015 13:58

Re: Še ena nova o pozitivnih vplivh HMB

@grom


Zanimivo. Si na vzdrzljivosti opazil kaj spremembe?
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Grom

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Šefe

Vnosov: 63896

Pridružen: Če sep 23, 2004 18:35

Odgovor To avg 25, 2015 18:05

Re: Še ena nova o pozitivnih vplivh HMB

regeneracija
Vabljeni na moje spletne strani: www.gaspergrom.com
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mbdejan

Mlečnozobec

Vnosov: 158

Pridružen: To avg 14, 2007 10:48

Odgovor Če avg 27, 2015 12:10

Re: Še ena nova o pozitivnih vplivh HMB

Odmerek 10 g Maxximum BCAA + 3 g HMB imaš enak pred in po treningu?
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Grom

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Šefe

Vnosov: 63896

Pridružen: Če sep 23, 2004 18:35

Odgovor Če avg 27, 2015 13:27

Re: Še ena nova o pozitivnih vplivh HMB

recimo.
že kar veliko. večina jemlje tako
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