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The effects of different inspiratory muscle training intensities on exercising heart rate and perceived exertion

  • A. D. GethingEmail author
  • L. Passfield
  • B. Davies
Original Article

Abstract

This study investigated the relationship between the intensity of an inspiratory muscle training programme and its effect on respiratory muscle strength, exercising heart rate, and ratings of perceived exertion. A total of 66 subjects were randomly assigned to one of three groups. One group trained at 100% of maximum inspiratory pressure (MIP) for 6 weeks (MAX, n=22). A second group performed 6 weeks of inspiratory muscle training at 80% of MIP (SUB, n=21) and a third control group received no inspiratory training (CON, n=23). Both the MAX and SUB training groups improved MIP relative to the control group [32 (19) cmH2O, P=0.01; 37 (25) cmH2O, P=0.001, respectively]. A significant decrease in heart rate [−6 (9) beats min−1, P=0.02] and rating of perceived exertion [−0.5 (1.4), P=0.04] was observed for the MAX group only. It is concluded that 6 weeks of both MAX and SUB training were sufficient to improve inspiratory muscle strength. However, exercising heart rate and perceived exertion decreased with MAX training only.

Keywords

Exercise Resistive loading Rating of perceived exertion Respiratory Training intensity 

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Field of Health and Exercise Science, School of Applied SciencesUniversity of GlamorganPontypriddUK

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