Restitution of the Value of Posture Features in the Sagittal and Transversal Planes After Carrying the Schoolbag on the Back and its Relationships with Physical Fitness in 7-Year-Old Children of Both Sexes

Abstract

Introduction:The analysis of the student's environment is a set of stressors in the field of human ecology. Material and Method:The body posture tests were carried out in a group of 65 students aged 7 years, using the moiré projection method in 4 positions: 1 st -habitual posture, 2 nd -posture after a-10-minute loading, 3 rd -one minute after the load removal, 4 th -two minutes after the load removal. Physical fitness was measured with the Sekita test. Results:The significance of differences between 1 st and 3 rd , 1 st and 4 th , 2 nd and 3 rd and 4 th measurement were analyzed to determine changes in the value of the features after loading the body and their relationship with physical fitness. Conclusions a)After the load removal of carrying school supplies, there was an incomplete statistically significant restitution after the first and second minute. b)In carrying the schoolbag on the back, restitution is most often associated with endurance and speed among boys, and with endurance among girls. Among boys, the features of physical fitness most often show a significant relationship in the restitution of the size of the pelvic tilt angle to the left (KSM-) and the angle of the convexity of the lower angles of the shoulder blades, where the left angle is more convex (UB-), and in girls with the angle of the pelvic tilt to the left (KSM-) and the depth of thoracic kyphosis. Physical fitness is more frequently associated with the restitution of the value of posture features among boys. c)Due to the incomplete restitution of the value of the posture features, carrying of school supplies on the back with the mass of 4kg is not recommended by children aged 7 years. The physical fitness of children does not lead to full restitution of the examined posture features, which proves its low level and immature corrective and compensatory processes.