Muscles, we have over 600 of them.They make up between 1/3 and 1/2 of our body weight and along with connective tissues they bind us together ,hold us up and help us move.
And whether or not bodybuilding is your hobby. Muscle needs your constant attention because the way you treat them on a daily basis determines whether they will wither or grow.
Say you’re standing in front of a door ready to pull it open your brain and muscle are perfectly poised to help you achieve this goal first. Your brain sends a signal to motor neurons inside your arm .when they receive this message they fire causing muscle to contract and relax .which pull on the bones in your arm and generate the needed movement.The bigger the challenge become the bigger the brains signal grows and the more motor units it rallies to help you achieve your task.But when if the door is made of solid iron.At this point your arm muscles alone won’t be able to generate enough tension to pull it open , so your brain appeals to other muscles for help .you plant feet ,tighten your belly and tense your back generating enough force to yank it open. Your nervous system has just leveraged the resources you already have other muscle to meet the demand.
While all this is happening your muscle fibers undergo another kind of cellular change as you exposes them to stress they experience microscopic damage which in this context is a good thing .In response the injured cells release inflammatory molecule called cytokinesis.That active the immune system to repair that muscle injury. This is when the muscle building magic happens.The greater the damage to the muscle tissue .The more your body will need to repair it self .The resulting cycle of damage and repair eventually makes muscle bigger and stronger .As they progressively demands.
Since our bodies have already adapted to most every day activities ,those generally don’t produce enough stress to stimulate new muscle growth so.To build new muscle a process called hypertrophy .our cells need to be exposed to higher workloads then they are used . In fact if you don’t continuously expose your muscles to same resistance they will stink a process known as muscular atrophy.
In contrast ,exposing the muscle at a high degree of tension.especially while the muscle is lengthening,also called eccentric contraction.It generates effective conditions for new growth. However, muscles rely on more than just activity to grow.With out proper nutrition,hormones and rest your body would never be able to repair damaged muscle fibers.
Protein in our diet preserve muscle mass by providing the building blocks for new tissue in the form of amino acids. Adequate protein intake like insulin, like growth factor and testosterone help shift body into a state where tissue in required and growth. This vital repair process mainly occurs when we’re resting especially at night while sleeping.
Gender and age affect this repair mechanism. Which is why young men with more testosterone have a leg up in the muscle building game. Genetic factor also play role one’s ability to grow muscle. Some people have more robust immune reactions to muscle damage .muscle fivers increasing their muscle building potential.
The body responds to the demands you to place on it. If you tear muscle up eat right, rest and repeat.you’ll create the conditions to make your muscle as big as strong as possible.
It is with muscle as it is with life. meaningful growth requires challenge and stress.
Fitness 