1, test purpose
Test students' height, cooperate with weight test, evaluate students' body symmetry, and evaluate students' growth and nutritional status.
2. Field equipment
Height measuring instrument. Before use, check 0: 00, and measure whether the height from the plane of the datum plate to the red scribe line in front of the column is 10.0 cm with a steel ruler, and the error shall not be greater than 0. 1 cm. At the same time, check whether the column is vertical, whether the joint is tight, whether there is shaking, whether the parts are loose, etc. And correct it in time.
3. Detection method
Subjects stand barefoot on the altimeter floor (upper limbs naturally droop, heels together, toes separated by 60 degrees). The heel, sacrum and two scapular regions are in contact with the column, the trunk is naturally straight, the head is straight, and the upper edge of the tragus is horizontal with the lower edge of the orbit. The tester stands on the right side of the subject, gently slides the horizontal pressure plate along the column and gently presses it on the top of the subject's head. When reading, the tester's eyes should be at the same height as the horizontal plane of the platen. The recorder retells and records. In centimeters, accurate to one decimal place. The test error shall not exceed 0.5 cm.
4. Preventive measures
(1) The altimeter should be laid flat against the wall, and the scale of the column should face the light source.
(2) Strictly master the measurement posture requirements of "three-point alignment with column" and "two-point levelness". When the tester reads, his eyes must be at the same height as the pressure plate. When his eyes are higher than the platen, he should squat down, and when he is lower than the platen, he should raise his eyes.
(3) When the horizontal pressure plate is in contact with the head, the tightness should be moderate, those with fluffy hair should be pressed tightly, the braids and knots on the top of the head should be loosened, and the hair accessories should be removed.
(4) After reading, immediately push the horizontal clip to a safe height to prevent damage.
(5) Before measuring the height, the subjects are not allowed to engage in physical activities and physical labor.
weight
1, test purpose
Test students' weight, cooperate with height test, evaluate students' body symmetry, and evaluate students' growth and nutritional status.
2. Field equipment
Lever scale or electronic scale. Check its accuracy and sensitivity before use. The required precision error is not more than 0.65438 0%, that is, the error per 100 kg is less than 0.65438 0 kg. Inspection method: Weigh 10 kg, 20 kg and 30 kg standby standard weights (or replace them with equal-weight calibration weights) respectively, and check whether the error between index reading and standard weights is within the allowable range. The test method of sensitivity is: put a weight of 100g and observe the change of scale. If the ruler is raised by 3mm or the cursor is moved away by 0. 1kg, and the ruler remains horizontal, the requirements will be met.
3. Detection method
When testing, the lever scale should be placed on a flat ground, and the 0 o'clock should be adjusted to the level of the scale. The subjects were barefoot and the male subjects were wearing shorts. Female subjects stood in the center of the balance in shorts and short-sleeved shirts. The tester places appropriate weights and moves the cursor until the balance is balanced. The reading is in kilograms, accurate to one decimal place. The recorder will record the reading after repeating it. The test error shall not exceed 0. 1 kg.
4. Preventive measures
(1) Subjects are not allowed to engage in strenuous physical activity and physical labor before weighing.
(2) The subject stands in the center of the scale, and the upper and lower lever scales should be moved lightly.
(3) Every time the lever scale is used, it must be calibrated. Testers should check the weight of the weights before each reading to avoid mistakes.