Effect of Different Intensities of Inspiratory Muscle Training on Balance and Hand Grip Strength in sedentary people

Background: Inspiratory muscle training (IMT) enhances respiratory function, but its effects on handgrip strength and balance need further study. This research investigates different IMT intensities (30%, 50%, 60% MIP) in sedentary individuals with varying health conditions. Objective: This study examined whether different intensities (30%, 50%, and 60% of Maximum Inspiratory Pressure [MIP]) could effectively enhance inspiratory muscle strength, handgrip strength, and postural balance stability. Methods: we conducted a pilot randomized study involving Six participants (37–50 years) across 6–7 sessions. Pre- and post-assessments measured inspiratory muscle strength, handgrip strength, and balance. A paired sample t-test showed statistically significant differences (p = 0.031).Results: Post-assessment data revealed statistically significant improvements in inspiratory muscle strength and handgrip strength and balance across all groups. In inspiratory Muscle Pressure (AMIP, cmH₂O) group 1: Increased 5.2, group 2: Increased 12.5 , and group 3: Increased 23.5. In grip Strength
group 1: increased from 27.5 to 32, group 2: Increased from 24 to 30.2, group 3: Increased from 38 to 46.5.The overall Stability Index Group 1: (0.5 → 0.4), group 2: (0.7 → 0.6), and group 3:( 0.6 → 0.4) results show that Group 3 showed the highest improvement in AMIP, grip strength, and balance measures.
Conclusion: The results of this study confirm that all three intensities of inspiratory muscle training exert a beneficial influence on handgrip strength, postural balance, and respiratory muscle strength. However, among the tested intensities, the high-intensity training protocol (60% of maximum effort) demonstrated the most pronounced effectiveness in enhancing these physiological parameters