DARNOK35
W tym badaniu z zolnierzami nie ma grupy kontrolnej
przyjmujacej "analogiczne" ilosci bialka jako takiego.
Po co w ogole takie porownania?
DARNOK35
A ten tekst to w ogole jakas niezborna papka,
pare fragmentow zywcem wzietych:
"BCAA dostarczają też energii mięśniom, gdy te są narażone na długotrwały i intensywny wysiłek." ...
"jednocześnie nie wpływają na wydolność fizyczną" ...
"
Odżywki na masę mogą być wykorzystywane jako źródło energii w sytuacji, gdy mięśnie są poddawane długotrwałemu wysiłkowi."
... i dalej ... "Wydolność fizyczna zostaje przy tym taka sama."
Ktos pijany ten art pisal?
Ponizej Lyle Mcdonald o BCAA:
http://www.bodyrecomposition.com/muscle-gain/supplements-part-2.html
Przytaczam i pogrubiam fragmenty:
======================================================
Branched-chain Amino Acids (BCAA)
The BCAA are leucine, isoleucine and valine, three amino acids that have a branching chemical structure (hence their name). Many studies have found that BCAA and specifically leucine is critical for stimulating skeletal muscle growth and protein synthesis and for this reason BCAA are often suggested for athletes trying to gain muscle mass.
Other aspects of performance have also been measured with early work suggesting that BCAA might decrease fatigue during high-intensity exercise; an equal amount of work found no effect. In some situations, BCAA may actually hurt performance through one of several mechanisms (e.g. ammonia production).
I’d note that
BCAA are found to some degree in all high quality proteins with the highest concentration being found in the dairy proteins: whey and casein. This is yet another reason for athletes to consider adding those specific proteins (either in powder or food form) to their diet; this will help to ensure that BCAA intake is optimal.
In that vein,
my general feeling is that, if sufficient dietary protein is being consumed (e.g. you’re following the recommendations in this book), additional BCAA is unnecessary and will have little to no effect. In most studies where BCAA had a benefit, it was on a background of inadequate protein intake.
As noted above, BCAA may protect immune system and athletes involved in very heavy training might consider extra. BCAA are fairly expensive, with daily doses running from 10-20 grams per day and supplements can be bitter tasting. I would consider BCAA supplementation as something for athletes to use only when everything else in their diet was taken care of.
======================================================
Szybkie tlumaczenie:
Wiekszosc badan wykazujaca pozytywy BCAA opierala
sie na porownywaniu grup o slabej podazy bialka
(czyzby cos jak ci zolnierze?). Jak jesz zarcie bogate
w BCAA (np. nabial) to dodatkowa suplementacja BCAA
jest zbedna i przynosi znikome/zadne korzysci.
O BCAA w kontekscie wydolnosci aerobowej nie ma tu nic.