Effect of Myofascial Trigger Release and Thoracic Mobility Exercises on Chest Expansion and Posture among Upper Cross Syndrome Subjects

Background: Upper Cross Syndrome (UCS) is a postural disorder characterized by forward head posture, rounded shoulders, and increased thoracic kyphosis due to muscular imbalance. These alterations may restrict thoracic mobility and chest expansion, affecting respiratory efficiency. Myofascial Trigger Release (MTR) and thoracic mobility exercises have shown individual benefits; however, evidence regarding their combined effects remains limited. Aim: To determine the combined effect of Myofascial Trigger Release and thoracic mobility exercises on chest expansion and posture among individuals with Upper Cross Syndrome. Methodology: A single-group pre-test and post-test experimental study was conducted involving 30 subjects aged 18–40 years diagnosed with UCS. Participants received MTR targeting the pectoralis major, sternocleidomastoid, upper trapezius, and levator scapulae, combined with thoracic mobility exercises for eight weeks. Chest expansion was measured using a chest caliper at the axillary and xiphoid levels, while thoracic kyphosis angle was assessed using Kinovea software. Data were analysed using IBM SPSS Statistics Version 20. Paired sample t-tests were used to compare pre- and post-intervention outcomes. Results: Significant improvements were observed in all outcome measures. Axillary chest expansion increased from 2.40 ± 0.14 cm to 3.30 ± 0.17 cm, while xiphoid chest expansion increased from 2.10 ± 0.14 cm to 3.00 ± 0.17 cm. Thoracic kyphosis angle decreased from 48.00 ± 1.44° to 42.50 ± 1.53°. All improvements were statistically significant (p < 0.001). Conclusion: Combined MTR and thoracic mobility exercises significantly improved chest expansion and reduced thoracic kyphosis in individuals with UCS.