Every child is an individual - it is not a secret.However, there are indicators that children in certain age groups must meet the average statistical standards. Such parameters help the doctor to determine the possible presence of problems from the physical and mental development, as well as to suggest the presence of any disease.
Assessment of the child's physical development is a very important moment for any doctor and, of course, for parents. What do all these scales, grades and tables in the life of a baby mean and where do they come from?
Newborn
Когда ребенок только появляется на свет, он сразу gets his first marks. On the Apgar scale, the neonatologist places a certain number of points in the first and fifth minute of the baby’s life. From these two numbers depends on whether he will stay with his mother or he needs additional medical care, the question of the first vaccinations is decided.
Baby up to a year
After the child is one month old, the mother must always carry the baby on a scheduled appointment with the pediatrician. This happens on schedule when the baby is performed:
- one month;
- three months;
- six months;
- nine month;
- twelve months.
At these receptions compulsoryassessment of physical development on centile tables. They also write down the age when the child began to smile, sat down for the first time, stood up, took the first steps, said the first word, teething terms. Measure:
- Weight.
- Body length
- Head volume / circumference.
- The size of the chest.
- Body temperature.
- The size of the spring.
Based on this data and possible complaintsmothers, the child can be sent for additional tests or a specialist reception. In other cases, an assessment of physical development is given according to centile tables. The development rate according to these tables is always considered to fall into the middle corridors, that is, in the range of 25–75 percent. But the child can also develop quite normally, if the data on all indicators are in the same range, below or above the average (in this case they speak about the characteristics of the physique).
Centered tables for boys up to a year
To measure the growth of a baby up to a year in the clinic, use a special board with sides. To one of them they press the head of the child, to the other - the legs.
Age | Boy's height | ||||||
Centile interval,% | |||||||
3-9 | 10-24 | 25-49 | 50-74 | 75-89 | 90-96 | 97-100 | |
newborn | 46, 5 | 48 | 49, 8 | 51, 3 | 52, 5 | 53, 5 | 55 |
1 | 49, 5 | 51, 5 | 52, 7 | 54, 5 | 55, 5 | 56, 5 | 57, 5 |
3 | 55, 5 | 56, 5 | 58, 1 | 60 | 61 | 62 | 64 |
6 | 61, 5 | 63 | 65 | 66 | 68 | 69 | 71, 5 |
9 | 67, 5 | 68, 2 | 70 | 71, 5 | 73, 2 | 75 | 79 |
12 | 71 | 72, 5 | 74 | 75, 5 | 77, 3 | 80 | 82 |
Centers tables for boys and girls also contain data for the size of the child’s head. Non-compliance with standards for this parameter is a reason to send the baby to a neurologist.
Age | Boy head circumference | ||||||
Centile interval,% | |||||||
3-9 | 10-24 | 25-49 | 50-74 | 75-89 | 90-96 | 97-100 | |
newborn | 33 | 34 | 34-35 | 35 | 35-37 | 37 | 37, 5 |
1 | 34, 5 | 35, 5 | 36, 5 | 37 | 38 | 39 | 40, 5 |
3 | 38 | 39 | 40 | 40, 5 | 41, 5 | 42, 5 | 43, 5 |
6 | 41, 5 | 42 | 43 | 44 | 45 | 45, 5 | 46, 5 |
9 | 43, 5 | 44 | 45 | 46 | 46, 5 | 47, 5 | 48 |
12 | 44, 5 | 45, 5 | 46 | 47 | 48 | 48, 5 | 49, 5 |
Factors affecting physical development
The physical health of the child is the main indicator of his state of health. It depends on several factors:
- climatic conditions;
- heredity;
- nutrition;
- the level of material well-being of the family;
- adherence to the day;
- parental attitude to the child;
- psychological atmosphere in the family.
Mandatory anthropometric data for assessing the physical development of children after one year.
Assessment of the physical development of children after a year occurs according to the following indicators:
- Somatic indicators (weight in kg, height in cm, chest circumference in cm).
- Somatoscopic indicators (condition of the skin, mucous membranes, the development of subcutaneous fat deposits, the development of the musculoskeletal system, the level of sexual development).
- Physiometric indicators (muscle strength, lung capacity, blood pressure, pulse rate).
- General health (illness, the presence of chronic ailments).
Methods for assessing physical development strictlythey are unified, since only by measuring under the same conditions and the same instruments can we speak about the comparability and reliability of the research results.
Somatic indicators
Assessment of the physical development of the child oftenthis is how it happens: the somatic indicators of the development of a particular child are compared with centile tables according to age and sex. How these tables look for boys can be seen below.
Age | Boy's height | ||||||
Centile interval,% | |||||||
3-9 | 10-24 | 25-49 | 50-74 | 75-89 | 90-96 | 97-100 | |
2 years | 81 | 83 | 84, 5 | 87 | 89 | 100 | 94 |
3 years | 88 | 90 | 92, 5 | 96 | 100 | 102 | 104, 5 |
5 years | 99 | 101, 5 | 104 ,5 | 108, 5 | 112 | 114, 5 | 117 |
7 years | 111 | 113, 5 | 117 | 121 | 125 | 128 | 130, 5 |
10 years | 126, 5 | 129, 5 | 133 | 138 | 142 | 147 | 149 |
For girls, growth rates are slightly different. Up to two years, they are usually slightly smaller than boys, but after catching up and even ahead in growth.
Age | Girl's height | ||||||
Centile interval,% | |||||||
3-9 | 10-24 | 25-49 | 50-74 | 75-89 | 90-96 | 97-100 | |
2 years | 80 | 82 | 83, 5 | 85 | 87, 5 | 90 | 92, 5 |
3 years | 89 | 91 | 93 | 95, 5 | 98 | 100, 5 | 103 |
5 years | 100 | 102, 5 | 105 | 107, 5 | 111 | 113, 5 | 117 |
7 years | 111 | 113, 5 | 117 | 121 | 125 | 128 | 131, 5 |
10 years | 127 | 130, 5 | 134, 5 | 19 | 143 | 147 | 151 |
The study of somatoscopic indicators
Methods for assessing physical development include a number of key measurement indicators. They can be studied in the following table.
Sign of | Options | Norm | Note |
Grease deposition | The thickness of the fat fold in the abdomen | 1-2 cm | On the side of the navel and under the scapula |
The shape and characteristics of the development of the chest | Cylindrical, flat, conical, mixed, rachitic, barrel-shaped | Cylindrical | Sometimes in infants, mixed type of chest can be considered the norm. |
Backbone | Thin, chunky, intermediate | - | - |
Spine | Normal, kyphotic, lordostic | Normal - s-shaped in the sagittal plane | Spinal deformities also include scoliosis. |
Leg shape | Vaulted, flat, flattened | Vaulted (normal) | - |
Physiometric indicators
Evaluation of the physical development of schoolchildren occurs, among other things, by measuring the functional parameters of the body:
1.The vital capacity (volume) of the lungs is an indicator of the strength of the respiratory muscles and lung volume. The measurement is carried out using an air spirometer or water. Age indicators in children of different gender and age will differ.
Age | Floor | |||
Girls | Boys | |||
Volume ml | Strength | Volume ml | Strength | |
8 years | 1474 | 280 | 1670 | 301 |
10 years | 1903 | 360 | 2000 | 409 |
15 years | 3022 | 433 | 3670 | 729 |
2. The strength of the muscles of the hands - the degree of development of muscles. The measurement is carried out by a device called a hand-held dynamometer.
3. Stanovoy force - the force of the body extending muscles in the hip joints.
4. CHSH - heart rate.
Age, years | Beats Per Minute |
1 | 120-125 |
3 | 105-110 |
5 | 93-100 |
7 | 85-90 |
10 | 78-85 |
15 | 70-76 |
5. Blood pressure starts to measure after seven years. Normally, at this age, the systolic (upper) should be in the range of 100–120 mm Hg. Art., and diastolic (lower) - 60-80 mm Hg. Art.
The assessment of physical development on these indicators is made by comparing individual indicators and average values characteristic of this age and sex group of children.
Other development assessment methods
Mandatory anthropometric data for assessing physical development are used in other methods:
- Anthropometric / Sigma Methoddeviations. When using this method, the calculation of proportionality of development is made. This method is rarely used today, as it does not display a complete picture of development, but explores the elements separately.
- Regression scales.The tables for estimation by this method are made taking into account the correlations, which is an undoubted advantage of the method. But it can not be used for children with disproportionate development on certain grounds.
- One-dimensional scale N. Matveyeva. This method is used when entering the first class, when moving to the 3rd, 8th and 6th grade. It takes into account eleven signs of development:
- body weight,
- growth;
- circumference (volume) of the chest;
- the number of molars;
- lung capacity;
- frequency (number of beats per minute) pulse;
- The size of the fat fold in the navel;
- muscle strength of the left hand;
- muscle strength of the right hand;
- the minimum and maximum blood pressure.Этот метод достаточно развернутый, но имеет такой same drawback as anthropometric standards method. Therefore, the assessment of physical development will be more accurate if we use two-dimensional centile tables, which take into account the dependence of body length on mass. - Two-dimensional centile table. Evaluation occurs on an eight-point scale, which takes into account the ratio of gender, age, length and body weight.
- Centile table according to I. M. Vorontsov.It uses a scale that takes into account three main indicators - the length of the body, the weight of the child and the size of the chest. Tests (screenings) according to this method are used during routine inspections to determine the group of children with severe developmental disabilities.
- Complex method.
Comprehensive method for assessing physical development
All methods considered earlier only considermorphological data assessments of development, but for a growing person it is natural and necessary to take into account biological development. The complex method includes:
- Assessment of biological age (degreeage appropriate maturation systems and organs of the child). Criteria: weight and length gain per year, age by number of teeth, puberty, development of bone apparatus.
- The type of constitution physique on the ratio of the shape of the legs, abdomen, chest, back, development of muscles, bones, adipose tissue.
- Assessment of the harmony of the developmental features by the ratio of height and body weight.
Комплексная оценка физического развития, которую carried out in treatment-and-prophylactic institutions, as well as when conducting comprehensive medical examinations, depending on the data set, allows children to be divided into five different health groups:
- I group. It includes children without chronic diseases, not sick or rarely ill, developing in the physical and mental plan without deviations.
- Group II. This group includes the category of children withoutchronic diseases and sick no more than four times a year, with the risk of developing chronic diseases, there may be insignificant deviations in the level of functioning of systems and organs.
- III group identifies children with chronic diseases, pathologies (congenital, not interfering with the body to function normally), often ill (more than four times a year).
- Group IV. Children with malformations (congenital), chronic diseases that disrupt the normal state of health and general condition of the body.
- V group. This group includes children suffering from serious chronic diseases that cause obvious disorders and dysfunctions of the body.
Teens
Assessment of the physical development of adolescents does not differ from the assessment methods used for all children. All tables and scales include data for children under 17 years of age.
Although, of course, we must not forget that the development of girls after nine years and boys after eleven will differ significantly from the development of younger children.
In adolescence, significant changes occur in the proportions of the body and the development of organs and systems:
- Girls under the age of 14 are significantly ahead of their peers in terms of weight, height, and size of the chest.
- During this period, there is a strong growth jump (the girls will have time to grow by about 25 centimeters and add 25 kilograms; boys - 35 centimeters and 35 kilograms).
- By the age of 13-15, the formation of secondary sexual characteristics will be fully completed.
- The active formation of the nervous, mental, cardiovascular, and endocrine systems continues.
- Pulses and pressure are gradually approaching those of an adult, and at the age of 18 they will stop at 120 on 65 in girls and 115 on 60 in boys.
It should be noted that the accelerating pace of physical development (acceleration) has significantly changed recently the norms of somatic indicators.