Adolescence is the most important stage for bone development. Many young friends do not pay much attention to this stage, which results in their short stature. This has a great impact on our future and will seriously affect our employment, marriage and many other aspects. Let us now understand the symptoms of bone development. After entering puberty, the body grows rapidly under the regulation of neuroendocrine, and the second spurt in human growth and development occurs (the first spurt is in infancy). With the development of the reproductive system and the appearance of secondary sexual characteristics, the body shapes of men and women change significantly, and finally true sexual differentiation is formed. The adolescent growth spurt shows obvious gender differences in the onset and end time, the magnitude of the spurt, and the location of the spurt. Boys are around 11-13 years old, generally two years later than girls. Finally, adult men are taller, with broader shoulders and well-developed muscles, which reflects the characteristics and rules of morphological development during adolescence. It is generally explained by the changes in common indicators such as body length, width, circumference, and weight using anthropometry methods. 1. Height The occurrence of a height growth spurt is a sign that boys and girls are entering puberty. The height of adolescent boys can increase by 7-9cm per year, up to 10-12cm, and an average increase of 28cm during the entire puberty; the height of adolescent girls can increase by 5-7cm per year, up to 9-10cm, and an average increase of 25cm during the entire puberty. Because boys begin puberty later than girls, their bones stop growing later. In addition, boys' growth spurt is larger and lasts longer, so by adulthood the average height of men is generally about 10 cm taller than that of women. 2. Weight is easily affected by environmental factors such as nutrition and disease, and its stability is less stable than height. It mainly reflects the changes in the quantity of bones, muscles, adipose tissue and internal organs, so it can continue to grow even after puberty. Body weight refers to the total weight of the body, including bones, muscles, fat, internal organs, etc. As girls age, their body fat continues to increase, with a peak in fat accumulation during puberty, when they mature, the amount is twice that of boys. As boys age, their muscles continue to develop, reaching their peak at age 30, and when mature, they are 1.5 times that of girls. During adolescence, we must pay attention to supplementing our bodies' nutrition and never get into the situation of nutritional deficiencies. We must also be aware of the symptoms of bone development and determine whether we have bone maldevelopment. We must promptly seek effective solutions to promote our normal growth and development. |
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