Introduction: Although it is thought that abdominal adiposity is one of the risk factor for postural deviation, such as increased lumbar lordosis, the studies in the literature only explored the effects of body mass index on spinal alignment and postural changes. The aim of this study was to investigate the correlation with detailed body composition and spine alignment in healthy young adults.
Materials and Methods:This cross-sectional study was conducted with sixty seven healthy volunteers (37 men and 30 women) whose ages ranged between 18 and 25 years.All participants’ sagittal spinal curvatures of lumbar and thoracic region were measured via Spinal mouse® (Idiag, Fehraltorf, Switzerland).Also, body composition analysis (total fat ratio, total muscle ratio, visceral fat ratio, and body muscle ratio) estimation by means of bio electrical impedance were evaluated via Tanita Bc 418 Ma Segmental Body Composition Analyzer (Tanita, Japan).Pearson’s correlation was used to analysis among the variables.
Results:The mean lumbar lordosis and thoracic kyphosis angles were 21.02°±9.39, 41.50°±7.97, respectively.Statistically analysis showed a significant positive correlation between total fat ratio and lumbar lordosis angle (r=0.28, p=0.02).Similarly, there was a positive correlation between visceral fat ratio and lumbar lordosis angle (r=0.27, p=0.03). The thoracic kyphosis angle showed also positive correlation with total fat ratio (r=0.33,p=0.00) and visceral fat ratio (r=0.40,p=0.01).The total muscle ratio showed negative correlation between lumbar lordosis (r=-0.28,p=0.02) and thoracic kyphosis angles (r=-0.33, p=0.00), although there was no statistically correlation between trunk muscle ratio,lumbar and thoracic curvatures (p>0.05).
Conclusion:The study demonstrated that an increase of fat ratio and decrease of muscle ratio in abdominal region or whole body shifts the spinal alignment which may adversely affect the spinal loading.Therefore, body composition should be taken into account in spine rehabilitation.
Published on: Jun 1, 2017 Pages: 10-15