| COPD | Chronic Obstructive Pulmonary Disease |
| FSP | Forward Shoulder Posture |
| SR | Scapular Rotation |
| ST | Scapular Tilt |
| SD | Scapular Distance |
| PMI | Pectoralis Minor Index |
| MIP | Maximum Inspiratory Pressure |
| MEP | Maximum Expiratory Pressure |
| CE | Chest Expansion |
| C. angle | Cervical Angle |
| T. angle | Thoracic Angle |
| L. angle | Lumbar Angle |
| FVC | Forced Vital Capacity |
| %FVC | Percent Predicted Forced Vital Capacity |
| FEV1 | Forced Expiratory Volume in One Second |
| %FEV1 | Percent Predicted Forced Expiratory Volume in One Second |
| FEV1/FVC | Ratio of Forced Expiratory Volume in One Second to Forced Vital Capacity |
| FEF25–75% | Forced Expiratory Flow at 25–75% of Forced Vital Capacity |
| PEFR | Peak Expiratory Flow Rate |
| BMI | Body Mass Index |
| OR | Odds Ratio |
| CI | Confidence Interval |
| ATS | American Thoracic Society |
| ERS | European Respiratory Society |
| GOLD | Global Initiative for Chronic Obstructive Lung Disease |
| STROBE | Strengthening the Reporting of Observational Studies in Epidemiology |
| AIC | Akaike Information Criterion |
| REC | Research Ethics Committee |
| NPHO | Nakhon Nayok Public Health Office |
| RV/TLC | Residual Volume to Total Lung Capacity Ratio |
| SDG | Sustainable Development Goal |
| UK | United Kingdom |
| cmH2O | Centimeters of Water Pressure |