Learning about your body muscle has to be one of the most important step in order to promote muscle growth. Understanding your muscular principles is fundamental for enhancing and improving muscular performance.The body has around 650 muscles. Just a simple jog will activate over 220 body muscles, most people only know around 10 of these muscles normally.How many muscles do you know ?Here are the common top five people know;AbsBicepsHamstringsQuadsTricepsWhen muscles contract they work much like rowers. Two forces that are the base of a muscle growth are known as myosin and actin. These are muscle filaments that slide against each other in order to contract. To find out more on detail please follow – http://en.wikipedia.org/wiki/Sliding_filament_modelDoing the same workout week in, week out, will leave you with fewer gains.You want be improving but you may be doing some damage and could lead you to burn out your muscles. Focus on changing your exercises during the routine. Using different muscle groups whilst training is essential.Failing to incorporate any new techniques, such as new exercise;, number of reps;, increasing weight or changing body position, will simply lead to training with no muscular benefits. The only benefit will you gain will be increasing the cardio-fitness of your muscle. However, there will be no growth benefitsStretchingYou don’t just benefit by looking better, you also benefit from reducing your risk from injury. Stretching can help unlock more muscular fibres within the body thereby helping us activate more muscles. You should always incorporate flexibility training in a normal program as it will prevent injury to muscular body tissue.Its import when you write your fitness plan to have involve the opposite muscle, around our body we have the muscle groups at the front and back. Most people concentrate on the muscles on the front of our bodies as these are the ones we can see in the mirror. All the front muscles have opposite muscle groups which we need both for our bodies to activate normally and produce movement.