The Effect of Spinal Postural Abnormalities on Spirometric Indices

Postural abnormalities are one of the factors influencing on respiratory flow and Lung capacity. The aim of this study was to investigate the effect of Postural abnormalities on spirometric indices in students. 36 volunteer students (19 males and 17 females) with age ranged 15-19 years old through simple non-probability sampling were selected and their Lumbar Lordosis (from 12th thoracic vertebrae spinal process to 2nd Sacral vertebrae spinal process) and thoracic kyphosis (from 4 – 12th thoracic vertebrae spinal process) degrees measured via flexible ruler Model Mark Kidos. Subjects Spiro metric indices such as (PEF, FEF25%, FEF25%-50%, FEF50%, FEF75%, FVC, FEV1) measured via spirometer Model Spiro lab II. One way ANOVA and POSTHOC TUKEY test were used for statistical Analysis. Results showed that subjects with kyphosis abnormality have the lowest respiratory flow and Lung capacity and subjects with normal posture have the highest respiratory flow and Lung capacity. Spirometric indices such as PEF1, FEV, FVC were statistically significant differences between kyphosis and lordosis abnormality groups (p=0.004, p=0.002, p= 0.002 respectively), but there werent significant differences between other indices (FEF25% (p= 0.114), FEF25-75% (p= 0.112), FEF50% (p= 0.112), FEF75% (p=0.130) respectively). Based on this study results, we concluded that the spirometric indices changed with different Postural abnormalities.