Bones are the strongest organs in the human body. Their structure allows for more elastic bending. In the bone marrow, blood cells and tiles are formed – erythrocytes, leucocytes, and platelets. Our skeleton protect, determines the shape of our body, stores the minerals, and helps us in creating new blood cells.
Calcium helps maintain vitality and strengthen bones. We can find calcium in milk, yogurt, and cheese. Also, the vitality of the bones is maintained by training. If you are an athlete, take care of your bones and protect them. Train properly, to take care of your bones. Bones create the foundation of the organism, they are interconnected by joints. The human body is constructed of 206 bones and more than 600 muscles that account for 30% -50% of the total body mass.
As for the composition of the muscle tissue itself, 75% is water, and about 20% protein. Proteins are building materials, so their nutrition is very important (especially in bodybuilding). The muscles also contain carbohydrates (glycogen, glucose) that are the source of energy for the work of muscles. Also, there are fats about 1% and inorganic salts.
According to the grouping, we distinguish two-headed (biceps), triple-headed or quadriceps muscles. There are different types of muscle fibers, but they are generally divided into slow-motion fibers (type 1) and fast-moving fibers (type 2).
Fibers – Type 1
I.e. of slow motion or red fibers, they get energy to work on an aerobic path (by combustion of energy in the presence of oxygen). These are very important in long-lasting activities of the type of durability, because they are more resistant to fatigue. Specifically in bodybuilding, these fibers will stimulate them with weight with which we can make 12-20 repetitions.
Fibers – Type 2
Also know white hairs are characterized by a shorter time of contraction than the red ones, and the energy for their work is obtained anaerobically (without the presence of oxygen). Therefore their work lasts shorter. These fibers are less resistant to fatigue than the red ones. Stimulation of these fibers is achieved in the first part of the training, with weights with which we can make 6-8 regular repetitions.