Having dealt with the subjective assessment information about the athlete’s well-being, in this article we will continue to study, now objective indicators of human physical development. Let's start with the basic and most important ones: height, weight, and chest circumference.
Body length (height) is measured by standing with your back to the wall in the “at attention” position, touching the wall with three points: heels, buttocks and shoulder blades. A right triangle is applied to the wall and lowered until it touches the top of the head. A mark is made on the wall near the top of the triangle's corner. Then, using a measuring tape, measure the distance from the floor to the mark on the wall in centimeters.
Body weight determined with an accuracy of 50 g on ordinary home scales. When weighing, you need to stand in the middle of the platform.
Length or height and body mass or weight closely interconnected together. For this reason, they should be assessed jointly. An extremely simple way to calculate the optimal body weight is that it must be equal to the body length minus 100 cm for people with a height in the range of 155 - 165 cm. For a body height of 165 - 175 cm, the figure 103 is subtracted, and for 175 cm or more – 110 cm.
When checking whether your body weight is normal, use the simplest weight and height index, dividing the mass in grams by the length in centimeters (Kettle index). Body weight corresponds to the norm with an indicator value of 350-400 g/cm in men and, accordingly, 325-375 in women. It is considered insufficient if it is 300 or less, and excessive if the value of the indicator exceeds 500.
Chest circumference of the subject, also related to objective indicators of a person’s physical development, must be measured several times:
- while inhaling,
- on the exhale.
As a result, it is taken into account average of two measurements. Optimally, the chest is measured with a measuring tape: a) in a relaxed, calm state, and also: b) while inhaling and c) exhaling. The measuring tape at the back lies under the lower corner of the shoulder blades, and at the front:
- in men - along the lower line of the nipple circles,
- in women - on the line of attachment of the fourth costal cartilages to the sternum (mid-thoracic point).