Group A will perform PNF exercises using a yellow Thera-Band with a flexion-abduction-external rotation pattern, followed by extension-adduction-internal rotation, all with the elbow extended. The protocol includes three sets of 10 reps, with 60-second rest intervals conducted thrice a week for 12 weeks.

Group B was instructed to 1) breathe normally at rest; 2) perform upper extremity flexion, abduction, and external rotation with inhalation, followed by extension, adduction, and internal rotation with exhalation using a yellow Thera-Band. Subjects completed three sets of 10 repetitions with a 1-minute rest between sets thrice a week for 12 weeks.

Group A will follow a PNF-based training protocol to enhance strength, flexibility, and coordination. The exercises include two main movement patterns: flexion-abduction-external rotation with the elbow extended and extension-adduction-internal rotation with the elbow extended. These patterns target the muscles around the shoulder and upper chest. A yellow Thera-Band adds light resistance, increasing muscle engagement. The protocol also employs the reversal of antagonists technique, alternating between opposing muscle groups for balanced development and improved coordination. Participants will complete three sets of ten repetitions per session, with a 60-second rest between sets. The program spans 12 weeks, with three weekly sessions, allowing for consistent progress and muscle recovery. This structured approach aims to improve functional mobility and the performance of activities involving similar movements, offering a comprehensive training strategy through PNF and resistance.

The BPAT (Breathing Pattern Assessment Tool) is a structured method for recording data collected during a respiratory physiotherapy assessment. It evaluates several components: (i) chest and abdominal wall movement, (ii) the sound of inspiratory flow, (iii) the sound of expiratory flow, (iv) the pathway of inspiration and expiration, (v) signs of air hunger (such as yawning, sighing, and deeper breaths), (vi) respiratory rate (RR), and (vii) breathing rhythm. Each component is scored from 0 to 2, where 0 represents normal function, and 2 indicates severe Dysfunctional Breathing, resulting in a total score ranging from 0 to 14. The BPAT is completed with the patient seated comfortably in a supported chair for at least 5 minutes, with data collection taking approximately 1 minute. A BPAT score of 4 or higher has been validated as a threshold for diagnosing Breathing Pattern Disorder, with ROC analysis showing an AUC of 0.938 (0.885-0.991), 95% sensitivity, and 78% specificity.

Chest mobility will be assessed using a non-stretch measuring tape placed at the level of the xiphoid process, measuring both at rest and during maximal inhalation and exhalation. Interclass correlation coefficients for chest expansion measurements using the tape have been reported to range from 0.95 to 0.97, indicating high reliability.