Impact of Lung Boost Device on Ventilatory Functions and Fatigue in Patients With Interstitial Lung Diseases

Patients in the experimental group will train with the Lung Boost Respiratory Trainer (MD800) for 8 weeks, three times weekly, totaling 24 sessions. The procedure will be explained, and equipment sanitized before use. Training begins in strength mode at level 1, where patients inhale deeply through a mouthpiece, with feedback provided via on-screen balls. If level 5 is easily reached, resistance increases using a cone, restarting at level 1. Sessions include 15 repetitions of 2-3 second inhalations and exhalations, performed in three sets with 15-second rests to prevent fatigue. In endurance mode, patients inhale or exhale as long as possible, progressing gradually from level 1. Each session lasts 15 minutes, divided into three sets of five breaths with 15-second rests. This structured program enhances respiratory muscle strength and endurance.

Patients in both groups will receive a traditional physical therapy program for the chest in form of diaphragmatic breathing exercise and pursed-lip breathing exercise for 8 weeks.

Patients in both groups will receive medical treatment for 8 weeks.