Evaluation of posture, respiratory system functional parameters, trunk static endurance and lumbar – pelvic stability in young adults with body tilt

Abstract

Introduction: Lack of physical activity and a more sedentary lifestyle are currently increased, which is an integral part of skeletal muscle disorders (1,2). Long sitting causes structural changes in the body due to an inadequate load on the muscles that stabilize the spine, internal organs, and increased diaphragm pressure (3,4). The aim of our research was to evaluate the posture, the functional parameters of the respiratory system, the static endurance of the trunk, the stability of the lumbar pelvic in young adult‘s with body tilt. Research methods and organization. The study was approved by the Lithuanian University of Health Sciences Bioethics Center (BEC-SR(M)-107). The study involved 32 individuals, including 20 women and 12 men. Subjects were divided into two groups according to body tilt, which was determined by assessing posture in the sagittal plane. 1st group (30.06±5.2) years and BMI index was (22.9±3.5) kg/m2. In the 2nd group (28.07±7.2) years and BMI index was (22.3±3.2) kg/m2. There was no difference between groups by age, BMI index score and physical activity Baecke score. The study included young adults who were moderately physically active; had no diagnosed respiratory diseases; not experiencing acute back or joint pain; free of scoliosis. Tests were made at one particular time. To assess the posture we used the posture analysis grid, the APECS app. Using this app we assessed posture in the frontal and sagittal planes. In the frontal plane we put the markers (head; acromion; ASIS; knees; feet). And in the sagittal plane we assessed the deviation of the body from the midline (5). Respiratory functional parameters were determined by spirometry (FVC;FEV1;PEF;FER) as well as in Stange and Henche samples. Test of static endurance of the left and right sides trunk muscles, abdominal muscles, and back extensors muscles were performed. Lumbar - pelvic motion control assessment tests were chosen lumbar - pelvic stability. The body tilt of the 1st group ranged from 0 to 1.5 degrees, and that of the 2nd group ranged from 1.6 to 3.1 degrees. Statistical analysis was performed using SPSS 27.0 software. Due to the small sample size, the Mano-Whitney-Wilkoxon criterion (U) was used to compare the two independent samples, the Wilkoxon criterion (Z) was used for the dependent samples. Quantitative data are presented as median (xme), minimum value (xmin), maximum value (xmax) and arithmetic mean (m) as xme (xmin- xmax; m). Test results data are considered statistically significant when p< 0.05. Results. After analyzing the posture data in the frontal plane, the head position was 0.25(0-2.1; 0.49) degrees in the 1st group and 1.2(0.1-2.1; 1.12) degrees in the 2nd group (U=47.000; p=0.003). When comparing the position of the shoulders, the 1st group had 0.55(0.1 - 1.9; 0.75) degrees, and the 2nd group had 2.2(0.4-3.1; 2.1) degrees (U=23.500; p…[…].