Effect of Inspiratory Muscle Training (IMT) on Maximum Voluntary Ventilation (MVV)

Background: Inspiratory muscle training (IMT) is a technique that applies resistance to the diaphragm and other muscles involved in inhalation and provides numerous physiological benefits, to enhance their power and function capacity. Purpose: To determine the influence of an 8-week IMT on Maximum Voluntary Ventilation (MVV). Methods: The research design incorporated both pre- and post-tests over a duration of 8 weeks. The sample of the study included twenty healthy participants who experience moderate daily physical activities. The sample was allocated at random to either the experimental group, which underwent an IMT training program, or the control group, which continued with their daily routine. The experimental group utilized a "big breath" threshold device to enhance their respiratory muscles. ANCOVA test was used to process the pre-tests of two groups. Results: Following 8 weeks of IMT, the findings indicate a considerable improvement in MVV. Conclusion: An eight-week IMT has the potential to improve MVV.