Effect of Different Intensities of Inspiratory Muscle Training on Balance and Hand Grip Strength in sedentary people | ||||
| Bulletin of Physical Therapy Research and Studies | ||||
| Volume 3, Issue 2, May 2025, Page 62-74 PDF (524.04 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/bptrs.2025.365233.1043 | ||||
 View on SCiNiTO | ||||
| Author | ||||
sohaila fathy qurany 
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| physical therapy collage beni suef university beni suef city Egypt | ||||
| Abstract | ||||
| 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 | ||||
| Keywords | ||||
| Keywords: Inspiratory muscle training (IMT); handgrip strength; Biodex balance system; maximal inspiratory pressure (MIP); respiratory muscle function | ||||
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