We often hear old people say, "This kid is big, and he's definitely tall when he grows up!" "Is this true? Does big hands have anything to do with height?
Foot length does have a certain correlation with height, but not absolutely.
There is a folk saying: "A child grows a long foot first". Therefore, many parents think that the child's large feet are a precursor to growing tall.
It is true that all parts of the human body have a certain proportion, so there is a certain correlation between foot length and height.
Anthropometric studies have found that adults are about 6.6 times taller than their feet.
However, from the perspective of children's growth and development, 70% of the child's height comes from genetic factors, and 30% is affected by the day after tomorrow, including physical exercise, absorbed nutrition, daily sleep and diseases and other factors.
Moreover, the growth of adolescent children's feet will increase earlier than the height of the spikes, so the height calculated by foot length alone during puberty is not accurate. In the same way, the height calculated by observing the calves and fingers is not reliable.
If you want to estimate the height of a child, the more mainstream method is the "genetic target height calculation method" (unit: cm), specifically:
Girl height = (father height - 13 + mother height) / 2± 8.5
Boy height = (mother height + 13 + mother height) / 2± 8.5
But this is only an estimate, and the calculated result does not represent the child's actual height in the future.
So, who determines the height?
- Bone age
The height of the human is determined by the long bones, the growth and development process of human bones is basically similar, and the growth and development process of each bone has continuity and stages.
At different stages, bones have different morphological characteristics. Therefore, the assessment of bone age can more accurately reflect the growth and maturity of individuals. That is, the approximate age of the child can be determined by the age of the bones.
Under normal circumstances, the difference between bone age and actual age is between the upper and lower ages of 1 year, and it is abnormal to lag behind or be too advanced.
When the bone age is subtracted from the child's actual age> 2 years old, the child's body should be checked as soon as possible to rule out genetic endocrine diseases that cause bone age such as precocious puberty.
When bone age is subtracted from the child's actual age<-2 years old, it should also be checked as soon as possible to rule out possible bone age and endocrine diseases, including growth hormone deficiency or thyroid problems.
Bone age not only determines a child's biological age, but also understands the child's growth potential and sexual maturity trends, while also predicting a child's height as an adult.
Therefore, if you want to know more accurately how tall your child will grow in the future, you can't do without bone age.
At the same time, if you want your child to grow tall, parents need to manage their child's height as soon as possible to help their child fully develop their growth potential.
1. Let the child ensure adequate sleep time and high-quality sleep;
2. Maintain balanced nutrition in the diet, it is recommended to 50 grams of lean meat (mainly red meat such as pigs, cattle and sheep) + 500 ml of milk (note that it is not yogurt, let alone dairy drinks) + an egg;
3. Exercise regularly: the important is to jump rope, play football, play basketball, swim, run and kick shuttlecocks, and insist on about 20 to 40 minutes a day;
4. Let the child maintain a good positive mood;
5. Nutritional elements should be supplemented in time to meet the energy acquisition of height, including: calcium, iron, zinc, vitamin A and vitamin D.
Among them: calcium is the main component of human bones and teeth; iron is conducive to the appreciation of human cells; zinc can promote the formation and calcification of bones; vitamin A maintains bone metabolism, can promote the formation of long bones and the development of teeth; vitamin D can promote calcium absorption and bone calcium precipitation, maintain the balance of blood calcium.
Therefore, if you want your child to grow taller, instead of observing your child's feet, in addition to genetic factors, it is better to start from these aspects. Besides, even if the child is not so tall in the future, his ability, knowledge, etc. will still make him shine.