A Study of the Sustainment of the Effect of Inspiratory Muscle Training

Abstract

[Purpose] The purpose of this study was to examine the sustainment of the effect of inspiratory muscle training on the force and the endurance of the inspiratory muscle, dyspnea and general exercise training. [Subjects] The subjects were 12 healthy young adults (23.3 ± 4.3 years old, 5 male, 7 female). [Methods] 40%PImax inspiratory muscle training using PowerBreath^TM was conducted for one month by the subjects. The force and endurance of the inspiratory muscle, dyspnea and general exercise training were evaluated before and 4 weeks, 8 weeks, 12 weeks and 16 weeks after the training. [Results] The force and the endurance of the inspiratory muscle, dyspnea and general exercise training were increased significantly after 40%PImax inspiratory muscle training and these effects decreased over time. [Conclusion] The results of this study suggest that the effect of 40%PImax inspiratory muscle training is sustained over the same period as the training period but returns to the baseline 3 months after the inspiratory muscle training.