![]() |
![]() |
|
Nutrizione Dalla fisiologia alle linee guida, fino alla dieta del momento. Tutto sulla nutrizione.
Ciao amico visitatore, cosa aspetti? Apri una discussione subito nella sezione Nutrizione |
![]() |
|
LinkBack | Strumenti Discussione | Modalità Visualizzazione |
|
(#1)
![]() |
|
All the Truth Member
Messaggi: 5,464
Data registrazione: Apr 2008
|
![]() sulle frattaglie e gli altri tagli economici del pollo!The aim of our study was to determine whether resistance exercise-induced elevations in endogenous hormones enhance muscle strength and hypertrophy with training. Twelve healthy young men (21.8 +/- 1.2 y, BMI = 23.1 +/- 0.6 kg(.)m(-2)) independently trained their elbow flexors for 15 weeks on separate days and under different hormonal milieu. In one training condition, participants performed isolated arm curl exercise designed to maintain basal hormone concentrations (low hormone, LH); in the other training condition, participants performed identical arm exercise to the LH condition followed immediately by a high volume of leg resistance exercise to elicit a large increase in endogenous hormones (High Hormone, HH). There was no elevation in serum growth hormone (GH), insulin-like growth factor (IGF-1) or testosterone after the LH protocol, but significant (P < 0.001) elevations in these hormones immediately and 15 and 30 min after the HH protocol. The hormone responses elicited by each respective exercise protocol late in the training period were similar to the response elicited early in the training period indicating that a divergent post-exercise hormone response was maintained over the training period. Muscle cross-sectional area increased by 12% in LH and 10% in HH (P < 0.001) with no difference between conditions (condition x training interaction, P = 0.25). Similarly, type I (P < 0.01) and type II (P < 0.001) muscle fiber CSA increased with training with no effect of hormone elevation in the HH condition. Strength increased in both arms but the increase was not different between the LH and HH conditions. We conclude that exposure of loaded muscle to acute exercise-induced elevations in endogenous anabolic hormones enhances neither muscle hypertrophy nor strength with resistance training in young men. Key words: testosterone, growth hormone, IGF-1, anabolism. se vuoi darmi una buonanotte pure tu... ![]() |
|
![]() |
(#2)
![]() |
|
All the Truth Member
Messaggi: 5,464
Data registrazione: Apr 2008
|
![]() ne avevo visto pure un altro ma lo devo cercare |
|
![]() |
(#3)
![]() |
||
All the Truth Member
Messaggi: 15,115
Data registrazione: Sep 2008
Località: Mvtina
Età: 40
|
![]() Ora ho letto di fretta, però: Quote:
Non mi sembra che parli di squat con carichi importanti. magari gli hanno fatto fare leg curl e leg ext con 20kg 4x15... Cmq ora ho letto davvero di fretta, dopo rileggo. |
|
|
![]() |