Inspiratory muscle training in heart disease and heart failure: a review of the literature with a focus on method of training and outcomes

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. Author manuscript; available in PMC: 2020 Jun 19.

Published in final edited form as: Expert Rev Cardiovasc Ther. 2013 Feb;11(2):161–177. doi: 10.1586/erc.12.191

• MIP (cmH₂O)

• SMIP (PTU)

• Accumulated SMIP (PTU)

• Peak inspiratory power (Watts)

• Inspiratory work (J/breath)

• SMIP power profile (Watts)

• SMIP power profile y-intercept, R value, R-squared and SEE

• SMIP IVC profile (liters)

• SMIP IVC profile y-intercept, R-value, R-squared and SEE

• Power at 25% of inspiratory work (Watts)

• Power at 50% of inspiratory work (Watts)

• Power at 75% of inspiratory work (Watts)

• Endurance ratio^†

• IMTOC

• IVC (liters)

• RPE (6–20)

^†

Endurance ratio: power at 75% of inspiratory work/power at 25% of inspiratory work.

IMTOC: Inspiratory muscle time of contraction; IVC: Inspiratory vital capacity; MIP: Maximal inspiratory pressure; PTU: Pressure time units; RPE: Rating of perceived exertion; SEE: Standard error of the estimate; SMIP: Sustained maximal inspiratory pressure.