FATORES ASSOCIADOS AO GANHO DE MASSA MUSCULAR: UMA REVISÃO DE LITERATURA.
FATORES ASSOCIADOS AO GANHO DE MASSA MUSCULAR: UMA REVISÃO DE LITERATURA.
-
DOI: https://doi.org/10.22533/at.ed.26124090812
-
Palavras-chave: Hipertrofia do músculo esquelético. Ciências da Nutrição e do Esporte. Treinamento Físico.
-
Keywords: Skeletal muscle hypertrophy. Nutrition and Sports Sciences. Physical Training.
-
Abstract: Introduction: Muscle hypertrophy, characterized by an increase in the cross-section of the muscle, is a direct result of the interaction between physical activity and a balanced diet. Adequate nutrient intake not only supports performance during exercise, but also facilitates protein and peptide synthesis, as well as influencing plasma insulin. Strength training, particularly resistance training with weights, is crucial as it induces microlesions in muscle fibers, triggering adaptations such as sarcoplasmic and myofibrillar hypertrophy, which increase the volume of the sarcoplasm and the size of the myofibrils, respectively. Anabolic hormones such as testosterone, growth hormone and insulin are also essential, stimulating protein synthesis and inhibiting muscle breakdown. Nutrition plays a crucial role by providing proteins in the amount of 1.6 to 2.2 g/kg/day, essential for optimizing muscle gain, along with a caloric surplus to sustain growth. Genetics influences the composition of muscle fibers and hormonal response, affecting growth potential. The role of hormones such as GH and IGF-1 is crucial in hypertrophy, promoting protein synthesis, cell proliferation and inhibiting muscle degradation. The synergistic interaction between GH and IGF-1 maximizes muscle gains in response to resistance training. Methods: The search in the Scielo database resulted in 23 relevant articles, highlighting the effectiveness of different types of exercises for muscle gain. Results: Most studies focused on humans and supplements, with creatine being frequently mentioned, while others were excluded because they addressed topics such as pathologies and illicit substances rather than adequate nutrition. Conclusion: In short, muscle mass gain is multifactorial, depending on the integration of training, proper nutrition, hormonal management, and genetic and individual considerations to maximize sustainable results in muscle development.
- Luisa Delgado Dadalt
- Luciana Ventura Tauyr
- Marcos Tadeu Guardia Junior
- Giulia Groto
- Amanda Maciel Landim
- Rafaela Chaves Meirelles
- Marina Encinas Paganotto
- Carla Patrícia Carlos