Normal height for a 13-year-old boy

Height refers to the length of the vertical part of the body, which comes from the vertical growth and development of the body and is greatly affected by genetic factors. The physical condition of a person's height is the skeleton. The three parts related to height are mainly the head, spine and long bones of the lower limbs. Girls grow and develop earlier than boys, with a rapid growth stage at 12-13 years old and just stop growing at 19-23 years old. Boys grow and develop later, with a rapid growth stage at 15-16 years old and stop growing at 20-24 years old. The long bones of the limbs and the spine have completed ossification, and the height stops growing. So what is the normal height of a 13-year-old boy?

The normal height of a 13-year-old boy is generally between 152-167cm and the weight is between 40-65kg. A 13-year-old boy is in puberty. Not only should we observe the growth and development of his height and weight, but also the growth and development of his male secondary sexual characteristics. For example, the growth and development of beards and male pubic hair, or the protrusion of the Adam's apple and the change of voice. If the child does not show the growth and development of secondary sexual characteristics, he must go to the hospital for a detailed examination to prevent affecting the development of puberty. This stage is a time of rapid growth. 1. Ensure adequate nutrient intake and nutrient balance. Protein, carbohydrates and vitamins should be balanced and adequate. 2. Ensure adequate and good sleep quality. Ensure at least eight hours of sleep a day. 3. Insist on proper physical exercise. Jumping and stretching exercises can promote the growth and development of bones, tendons, and joint cartilage. 4. Children should maintain a happy and cheerful mood. Anxiety, anxiety and worry will have a negative impact on children.

Methods and regulations for measuring height

Measurement method: The person being measured stands barefoot on the bottom plate of the stature meter in a "stand at attention" posture, with the heels, sacrum and shoulder bones close to the vertical pole of the stature meter. The person being measured can stand above or below the person being measured, adjust the person's head to the lowest value between the inner edge of the ear and the outer edge of the eye socket, and then move the level plate of the stature meter to the head of the person being measured, making it loose and tight enough, so that the birth height can be accurately measured.

Accurate measurement rules: Each height measurement should be done barefoot, at the same time (morning is more accurate), using the same height meter, with the same posture from front to back and left to right, and the height meter should be placed on a flat surface against a wall. It is best to measure height twice each time, with an interval of 30 seconds. The results of the two accurate measurements should be basically the same. The deviation of the height meter should not exceed 0.5 cm.