Strategic Ingestion of High-Protein Dairy Milk during a Resistance Training Program Increases Lean Mass, Strength, and Power in Trained Young Males.
Nutrients
; 13(3)2021 Mar 15.
Article
em En
| MEDLINE
| ID: mdl-33804259
ABSTRACT
BACKGROUND:
We evaluated the effects of high-protein dairy milk ingestion on changes in body composition, strength, power, and skeletal muscle regulatory markers following 6 weeks of resistance training in trained young males.METHODS:
Thirty resistance-trained young males (age 27 ± 3 years; training experience 15 ± 2 months) were randomly assigned to one of two groups high-protein dairy milk (both whey and casein) + resistance training (MR; n = 15) or isoenergetic carbohydrate (maltodextrin 9%) + resistance training (PR; n = 15). Milk and placebo were ingested immediately post-exercise (250 mL; 30 g protein) and 30 min before sleep (250 mL; 30 g protein). Before and after 6 weeks of linear periodized resistance training (4 times/week), body composition (bioelectrical impedance), strength, power, and serum levels of skeletal muscle regulatory markers (insulin-like growth factor 1 (IGF-1), growth hormone, testosterone, cortisol, follistatin, myostatin, and follistatin-myostatin ratio) were assessed.RESULTS:
The MR group experienced a significantly higher (p < 0.05) increase in lean mass, strength, and power (upper- and lower-body) than the PR group. Further, IGF-1, growth hormone, testosterone, follistatin, and follistatin-myostatin ratio were significantly increased, while cortisol and myostatin significantly decreased in the MR group than the PR group (p < 0.05).CONCLUSIONS:
The strategic ingestion of high-protein dairy milk (post-exercise and pre-sleep) during 6 weeks of resistance training augmented lean mass, strength, power, and altered serum concentrations of skeletal muscle regulatory markers in trained young males compared to placebo.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Composição Corporal
/
Dieta
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Força Muscular
/
Desempenho Atlético
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Treinamento Resistido
/
Proteínas do Leite
Tipo de estudo:
Clinical_trials
Limite:
Adult
/
Animals
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Humans
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Male
Idioma:
En
Revista:
Nutrients
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Irã