SUMMARY
Background. A number of gender differences are of great importance in the research interpretation, being a differentiating variable in many of them. The example is a varied structure of the musculoskeletal system. The objective of this study was to determine corelations between gender and thickness of the abdominal muscles as well as selected trunk mobility parameters.
Methods. The studied group consisted of 80 subjects: 42 women and 38 men aged 18-45. The inclusion criteria were: age 18-45, absence of pain of the spine and peripheral joints; Body Mass Index (BMI) ≤ 29.9; absence of neurological symptoms; absence of chronic diseases affecting the musculoskeletal system; absence of postoperative scars within the abdominal wall; not being pregnant. The research procedure consisted of an interview, morphological analysis with body composition assessment, measurement of abdominal muscle thickness by ultrasound imaging and mobility tests: Fingertip-to-Floor, Sit and Reach Test and lateral flexion of the spine. The ANOVA, the Pearson correlation coefficient (r) and Intraclass Correlation Coefficient (ICC3.1) were used.
Results. Statistically significant differences between the groups were demonstrated in the thickness of internal (p = 0.0057) and external oblique muscles (p = 0.0079) and in the total measurement TrA + IO + EO (p = 0.0020), indicating a greater mean thickness in the male group. The results from functional trunk mobility tests did not differ significantly between men and women (p > 0.05). There was a weak correlation between the selected morphological variables and the thickness of the abdominal muscles in both groups.
Conclusions. Gender differentiates the thickness of the muscles of the lateral abdominal wall. In the group of men there is a greater thickness of the internal and external oblique muscle, as well as the entire muscle complex. No relationship between sex and the thickness of the transverse abdominal muscle was demonstrated. There were no differences in the mobility of the trunk between women and men.
Gender Differences in Ultrasound Imaging of Lateral Abdominal Muscle Thickness and Trunk Mobility
P. Niewiadomy, K. Szuścik-Niewiadomy, M. Kochan, N. Kędra, M. Kuszewski
Original Article, 444-451
Keywords: abdominal muscle thickness, gender, mobility, trunk movements, ultrasonography.,
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Gender Differences in Ultrasound Imaging of Lateral Abdominal Muscle Thickness and Trunk Mobility
P. Niewiadomy, K. Szuścik-Niewiadomy, M. Kochan, N. Kędra, M. KuszewskiOriginal Article, 444-451