How Do Muscles Get Bigger? Like This…
Everybody knows that training with weights in the correct manner will make your muscles bigger. It’s almost like we take it for granted. But, have you ever asked yourself: how do muscles get bigger, exactly?
What exactly is the process occurring which makes the muscles bigger? After all, something has to be happening to the muscles to make them change in this way.
Muscles get bigger by a process known as hypertrophy.
Simply put, when you break down the muscle tissue by using heavy weights and supply adequate nutrition and sufficient rest, the central nervous system begins increasing the cell size within muscle fibres.
The central nervous system does this because so it is a survival task. It knows that you struggled to lift the weights the first time around and wants to make it easier on you the next time. Your central nervous system is incapable of knowing that you also intend to increase the way to gain the next time causing it to struggle. It simply continues to build the muscle fibres up each time.
By increasing the cell size of the muscle fibres — thus the muscle fibres themselves — not only do the muscles gradually appear bigger over time, but they are also capable of storing more energy and generating greater force as a result.
Hypertrophy is the opposite of atrophy. Atrophy is were the size of the muscle fibres shrink because they’re a size (and strength) is deemed no longer necessary by the central nervous system and is therefore shrunk in size to preserve energy.