Muscle hypertrophy is a very complex process involving different body mechanisms and organs.
This type of body mechanism can be considered as an adaptive response to external stimuli that induces increase effort in the muscles.
Mechanical and chemical stimuli are the ones inducing hypertrophy in the muscles.
Mechanical stimuli pertain to workout, exercise and strenuous activities.
These forms of musculoskeletal involvement generate additional demand especially in the muscles.
This induction causes the muscle to trigger the mechanism of hypertrophy.
Hypertrophy in the muscles originates in various physiologies.
It is believed that muscle hypertrophy involves the interaction of three major factors which are satellite cells, immune system reactions, and growth factor proteins.
Talking about satellite cells, these cells are viewed to be an important factor in terms of muscle break repair and hypertrophy.
Satellite cells are mononuclear and progenitor type of cells.
This type of cell is still immature and only undergoes full function if the muscles required its assistance.
Being a progenitor cell, it possesses some characteristics of stem cells.
Satellite cells are the one responsible in promotion of growth and initiator of cellular regeneration or repair of the damaged skeletal muscles.
Being mononuclear, these cells have one big nucleus that occupies the whole cellular body.
These cells are located at the outer surface of the myofibrils or the muscle fibers just between the sarcolemma and the basement membrane.
Usually, the satellite cells are abeyant type of cells that only act its functions upon the induction of external stimuli, which are the increasing energy demand, damaged muscular tissues, and traumatic episodes.
In the case of the situation mentioned, the muscle fiber becomes damaged resulting in a disruption in the fiber integrity.
The satellite cells sense this and begin to proliferate and its usual life span is 48 hours starting from its activation.
The satellite cells place themselves in the injured size and begin to act as an adhesion that facilitates muscle fusion.
It donates its nucleus to the damaged muscle fibers.
This case is believed to be the reason of the increase in size in the muscles upon injury or trauma.
These cells do not facilitate cellular number increase but only cellular enlargement.
It also increases the number of proteins responsible for contraction which are the actin and mysosin fibers.
The satellite cells facilitate adhesion as its main concept of action.
It is a quiescent type o cell that does not undergo the usual cellular development.
It serves as a stored repair system that greatly aids muscle hypertrophy.
These cells provide a great means of muscular recovery and repair.