The difference between the normal bone age and the actual age of the child is no more than one year, if the difference is too much, whether the bone age is bigger or smaller than the actual age, it is an abnormal phenomenon.
Parents are reminded that they must seize the two golden growth periods of their children: one is infancy, the average length of a normal newborn is 50 cm, with an average growth of 2.5 cm per month in the first six months and 1.5 cm per month in the second six months. It reaches 75 cm at the age of one week. 2 weeks old can reach 85 cm; the height of children from 2 to 12 years old can be projected according to this formula: height = age x 6 + 77 cm. The actual height of a child is normal if it is not less than 30% of this value.
There is also a puberty, generally speaking, girls from the age of 9 or 11 years old, boys from 13 or 15 years old, pubescent children’s height can increase by 7 to 9 cm per year, a few people can reach 10 to 12 cm; after puberty (16 years old), development gradually mature, the bones began to calcify, the increase in height slowed.
Promote growth, a few magic words human size although affected by race and parental genetic factors, but practice has proved that acquired factors should not be ignored, acquired factors mainly include nutrition, exercise, sleep, emotional four elements.
1, from the nutritional point of view, should be given attention in the fetal period, that is, during pregnancy to increase maternal nutrition, so that the fetus in the mother’s body to obtain good nutrition, to lay the foundation for future healthy growth. After the baby is born, try to do breastfeeding for three to six months, and later, in different growth periods, should supply sufficient and reasonable nutritious food. As we enter childhood, we should pay attention to a balanced diet. It is to match meat and vegetables, including animal and vegetable proteins, animal and vegetable fats, and refined and coarse grains, so that they can take in enough high-quality proteins and essential fatty acids, minerals and vitamins. In addition, attention should be paid to the intake of special nutrients, namely high-density unsaturated fatty acids – DHA (docosahexaenoic acid), which is a necessary substance for growth and development. This substance is mainly from fish food.
2, exercise is the second factor to promote children’s growth The human body grows taller because the epiphyseal cartilage at the epiphysis of the long bones grows continuously, and the growth of epiphyseal cartilage requires good blood supply. Regular participation in sports activities can promote blood circulation and accelerate metabolism, so that the blood supply to the skeletal tissue increases. The enhanced nutrition, coupled with the mechanical friction and stimulation during exercise, results in the proliferation of epiphyseal cartilage cells, resulting in vigorous bone growth and development. At the same time, let children go outdoors more often, so that they can get a longer period of sunlight, promoting the body’s vitamin D production, which is conducive to the absorption of calcium. It can also promote height development.
3, sleep is also another important factor for children to grow taller The saying: “people grow in sleep” has its reasons. On the one hand, sleep can relax the brain nerves, muscles, etc., to relieve muscle fatigue; on the other hand, after the child falls asleep, the body growth hormone secretion, sufficient sleep is conducive to the child’s growth.
4, timely treatment of diseases is also an important factor to ensure the normal growth and development of children There are hundreds of diseases that affect the growth of children, some can be treated, such as growth hormone deficiency, thyroid hormone deficiency, etc. can be improved through hormone replacement therapy to improve height, such as asthma, congenital heart disease and other primary diseases treated well height will also have to catch up with growth; some genetic diseases there is no good treatment method. Short children need experienced specialist physicians to examine, find the cause of the disease, and treat the cause symptomatically.
5. A happy spirit is good for promoting children’s growth; mental depression can inhibit growth hormone secretion Therefore, parents should try to create a calm environment for their children, so that they can grow happily.