Effect of Diaphragmatic Breathing Exercise on Pain and Sleep Quality in Individuals With Non-specific Chronic Neck Pain: A Randomized Control Trial

15-minute diaphragmatic breathing exercise from a semi-Fowler's position. Patients will be instructed to position one hand on the chest and the other on the belly, gradually inhaling deeply through the nose, moving from functional residual capacity to total lung capacity, and holding the breath for three seconds. Patients will be advised to relax their shoulders, maintain quiet upper chest movement, and allow the abdomen to slightly rise. Subsequently, patients will exhale slowly through the mouth for up to five seconds. Diaphragmatic breathing exercises will be organized into three sets lasting 15 minutes, with 3 minutes of active exercise and a 2-minute rest period between sets. During rest intervals, patients will be instructed to breathe normally. If individuals experience dizziness or discomfort, the session will stop.

conventional physiotherapy exercise such as ROM, stretching exercises for superficial neck muscles