Comparison of movement patterns in 13- to 15-year-old boys with and without lumbar hyper lordosis by 9 test screening battery

Document Type : Original article


1 MA in Sport Pathology and Corrective Exercises, School of Physical Education and Sport Sciences, Tehran University, Tehran, Iran

2 Faculty Member and Associate Professor, Sport Medicine and Health Department, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

3 Department of health and sport medicine, Faculty of physical education and sport science, University of Tehran, Tehran, Iran



Background and Aims: lumbar lordosis is one of the most common abnormalities in the spine in adolescents that affects the movement system and lead to a variety of musculoskeletal disorders in the body.
Materials and Methods: The present study was a cross-sectional study in which 60 boys aged 13 to 15 years were selected by convenience sampling. Subjects entered the study after initial screening and were divided into two groups: lumbar lordosis (n = 31) and normal (n = 29). The mean age and BMI of the subjects were (13.71 ± 0.86) and (21.88±2.52), respectively. The lordosis angle was in the normal group (38.51±5.62) and in the lordosis group (57.08±8.57). Lordosis angle was measured using a flexible ruler and movement patterns according to the guidelines of the 9 Test Screening Battery. Data were analyzed by SPSS software using independent t-test at a significance level of α <0.05.
Results: The total score of the 9 test screening battery was 20.3 ± 2.4 in the lordosis group and 21.6 ± 2.2 in the normal group. The results of independent t-test showed that there is a significant difference between the total scores in the two groups (P = 0.032). Among the partial scores, the Deep squat score was 2±0.68 in the lordosis group and 2.48±0.68 in the normal group, with a significant difference between them (P=0.008). Also, the test score for Straight leg raises was 1.87±0.67 in the lordosis group and 2.27±0.57 in the normal group, and there was a significant difference between these two variables (P=0.012). No significant correlation was found between the results of other partial tests.
Conclusion: Lumbar lordosis can negatively affect the quality of lumbar-pelvic movement patterns in adolescent boys. Therefore, it is recommended that corrective movement specialists pay attention to the quality of its movement patterns during evaluation and lumbar correction exercises.


Main Subjects

Articles in Press, Accepted Manuscript
Available Online from 22 November 2021
  • Receive Date: 31 May 2020
  • Revise Date: 07 September 2020
  • Accept Date: 19 September 2020