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Oktober 14, 2017 1 min read

What Is Hypertrophy?

Hypertrophy is the increase in size of a  tissue or organ through the enlargement of the cells that comprise it.

If we’re going to disccus muscle hypertrophy, we have to talk about the two types generally discussed:

  • Myofibrillar hypertrophy
  • Sarcoplasmic hypertrophy

Myofibrillar hypertrophy.

Myo is “muscle” and a fibril is a threadlike cellular structure.

Myofibrils are made up of proteins that can contract and are what allow muscles to function as they do. Each muscle fiber contains many myofibrils.

Myofibrillar hypertrophy, then, refers to an increase in the size and number of myofibrils in muscle fibers. This increases the force with which muscles can contract.

Sarcoplasmic Hypertrophy.

Sarco means “flesh” and plasmic refers to plasma, which is a gel-like substance in a cell containing various things vital to the maintenance of life.

Thus, sarcoplasm is the plasmic elements of muscle cells, and it includes proteins, glycogen, water, collagen, and other substances.

As you can deduce, then, sarcoplasmic hypertrophy is an increase in the volume of the fluid, non-contractile components of the muscle (the sarcoplasm).

Many believe it to be a myth, some swear by hypertrophy, personal opinion, how would you explain a 150 Pounds Powerlifter that can outlift a 250 pounds Bodybuilder?


Dany Khoury
Dany Khoury

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