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A hardgainer is an arbitrary label that describes a person who practices bodybuilding but finds it challenging to develop musculature regardless of the amount of effort put in. The opposite of a hardgainer is an easygainer.[not in citation given]
Difficulty building muscle is often associated with the ectomorph body somatotype, however other common reasons also include a lack of proper nutrition, suitable physical activity level or not allowing enough recovery time for the stressed muscles to regain their previous state and then grow bigger (overtraining).[not in citation given]
For the true hardgainer, the issue lies deeper beneath any of the required elements of muscle gain listed above. Those are typically either diseases that affect muscles and/or protein synthesis, or there might be a genetic disorder that hinders protein synthesis and/or limits the maximum amount of muscles the body can hold to a relatively small amount for that person.
Some metabolic diseases affect the normal metabolic processes in the body:
- Acid maltase deficiency
- Carnitine deficiency
- Carnitine palmitoyltransferase II deficiency
- Debrancher Enzyme Deficiency
- Lactate dehydrogenase deficiency
- Mitochondrial myopathy
- Myoadenylate deaminase deficiency
- Glycogen storage disease type V
- Phosphofructokinase deficiency
- Phosphoglycerate kinase deficiency
The MSTN gene also plays a big role in muscle development. It provides instructions for making a protein called myostatin. This protein transforming growth factor beta (TGFβ) superfamily, which is a group of proteins that help control the growth and development of tissues throughout the body. This protein restrains muscle growth, preventing muscles from growing too large. Increased amount of myostatin portray deficiency in muscle development and increase of fat; on the other hand, smaller than normal amounts of myostatin greatly increase natural muscle mass, strength and decrease fat levels. There are no known health problems related to the myostatin mutations, and affected individuals are intellectually normal.
- "Translation matters: protein synthesis defects in inherited disease". nature.com. Retrieved 8 December 2014.
- "Myostatin-related muscle hypertrophy". nih.gov. Retrieved 8 December 2014.
- "Types of Muscular Dystrophy and Neuromuscular Diseases". hopkinsmedicine.org. Retrieved 8 December 2014.
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