proteine della soia

[criss]

ainbb e fibbn h/p..ma è vero che fanno il test anti-doping?

si è vero lo fanno a sorperesa a ai primi 2-3

[MrAffondo]

Prendendo spunto da un articolo sulla soia pubblicato su Olympian's news/Iron Man di gennaio 2008, dove si affermava "...da un punto di vista anabolico, le proteine del latte sono molto più affidabili di quelle della soia" e leggendo questo 3d, mi sono voluto prendere la briga di andare a verificare la fonte per maggiore chiarezza...Questo che segue è il recentissimo studio che ho trovato sull'American Journal of Clinical Nutrition:

Consumption of fat-free fluid milk after resistance exercise promotes greater lean mass accretion than does consumption of soy or carbohydrate in young, novice, male weightlifters1,2,3

Joseph W Hartman, Jason E Tang, Sarah B Wilkinson, Mark A Tarnopolsky, Randa L Lawrence, Amy V Fullerton and Stuart M Phillips 1 From the Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, ON, Canada (JWH, JET, SBW, RLL, AVF, and SMP), and Pediatrics and Medicine, McMaster University Medical Centre, Hamilton, ON, Canada (MAT)

Background: Acute consumption of fat-free fluid milk after resistance exercise promotes a greater positive protein balance than does soy protein.
Objective: We aimed to determine the long-term consequences of milk or soy protein or equivalent energy consumption on training-induced lean mass accretion.
Design: We recruited 56 healthy young men who trained 5 d/wk for 12 wk on a rotating split-body resistance exercise program in a parallel 3-group longitudinal design. Subjects were randomly assigned to consume drinks immediately and again 1 h after exercise: fat-free milk (Milk; n = 18); fat-free soy protein (Soy; n = 19) that was isoenergetic, isonitrogenous, and macronutrient ratio matched to Milk; or maltodextrin that was isoenergetic with Milk and Soy (control group; n = 19).
Results: Muscle fiber size, maximal strength, and body composition by dual-energy X-ray absorptiometry (DXA) were measured before and after training. No between-group differences were seen in strength. Type II muscle fiber area increased in all groups with training, but with greater increases in the Milk group than in both the Soy and control groups (P < 0.05). Type I muscle fiber area increased after training only in the Milk and Soy groups, with the increase in the Milk group being greater than that in the control group (P < 0.05). DXA-measured fat- and bone-free mass increased in all groups, with a greater increase in the Milk group than in both the Soy and control groups (P < 0.05).
Conclusion: We conclude that chronic postexercise consumption of milk promotes greater hypertrophy during the early stages of resistance training in novice weightlifters when compared with isoenergetic soy or carbohydrate consumption.

American Journal of Clinical Nutrition, Vol. 86, No. 2, 373-381, August 2007


Purtroppo è solo un abstract, ma spero che soddisfi alcune delle curiosità sulla soia

[LARRY SCOTT]

per dare acqua al mulino.....In Canada lessi in francese di un'analisi effettuata sui 100.000 abitanti di un'isola giapponese che mangiavano circa 120 gr di pro di soia come unica fonte proteica al giorno e avevano tutti i valori superiori alla media del resto del giappone,dove si nutrono di pesce e maiale, alla pari con quelli di europeri sani.........

[shernon]

per valori sopra la media cosa intendi?

[bleedeyes]

Prendendo spunto da un articolo sulla soia pubblicato su Olympian's news/Iron Man di gennaio 2008, dove si affermava "...da un punto di vista anabolico, le proteine del latte sono molto più affidabili di quelle della soia" e leggendo questo 3d, mi sono voluto prendere la briga di andare a verificare la fonte per maggiore chiarezza...Questo che segue è il recentissimo studio che ho trovato sull'American Journal of Clinical Nutrition:

Consumption of fat-free fluid milk after resistance exercise promotes greater lean mass accretion than does consumption of soy or carbohydrate in young, novice, male weightlifters1,2,3

Joseph W Hartman, Jason E Tang, Sarah B Wilkinson, Mark A Tarnopolsky, Randa L Lawrence, Amy V Fullerton and Stuart M Phillips 1 From the Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, ON, Canada (JWH, JET, SBW, RLL, AVF, and SMP), and Pediatrics and Medicine, McMaster University Medical Centre, Hamilton, ON, Canada (MAT)

Background: Acute consumption of fat-free fluid milk after resistance exercise promotes a greater positive protein balance than does soy protein.
Objective: We aimed to determine the long-term consequences of milk or soy protein or equivalent energy consumption on training-induced lean mass accretion.
Design: We recruited 56 healthy young men who trained 5 d/wk for 12 wk on a rotating split-body resistance exercise program in a parallel 3-group longitudinal design. Subjects were randomly assigned to consume drinks immediately and again 1 h after exercise: fat-free milk (Milk; n = 18); fat-free soy protein (Soy; n = 19) that was isoenergetic, isonitrogenous, and macronutrient ratio matched to Milk; or maltodextrin that was isoenergetic with Milk and Soy (control group; n = 19).
Results: Muscle fiber size, maximal strength, and body composition by dual-energy X-ray absorptiometry (DXA) were measured before and after training. No between-group differences were seen in strength. Type II muscle fiber area increased in all groups with training, but with greater increases in the Milk group than in both the Soy and control groups (P < 0.05). Type I muscle fiber area increased after training only in the Milk and Soy groups, with the increase in the Milk group being greater than that in the control group (P < 0.05). DXA-measured fat- and bone-free mass increased in all groups, with a greater increase in the Milk group than in both the Soy and control groups (P < 0.05).
Conclusion: We conclude that chronic postexercise consumption of milk promotes greater hypertrophy during the early stages of resistance training in novice weightlifters when compared with isoenergetic soy or carbohydrate consumption.

American Journal of Clinical Nutrition, Vol. 86, No. 2, 373-381, August 2007


Purtroppo è solo un abstract, ma spero che soddisfi alcune delle curiosità sulla soia

ma quindi non influenza la forza però gli assuntori di whey divennero + grossi? strano, se fosse così andrebbe bene per i pl

[MrAffondo]

ma quindi non influenza la forza però gli assuntori di whey divennero + grossi? strano, se fosse così andrebbe bene per i pl

Semplicemente l'ipertrofia è stata maggiore in chi assumeva whey..almeno secondo questo studio

[shernon]

ma da quando le proteine sia che siano whey o soia, danno cambiamenti sulla forza?

[MrAffondo]

ma da quando le proteine sia che siano whey o soia, danno cambiamenti sulla forza?

da mai