Breathing Training Glossary

Respiratory Muscle Training Glossary: Terms & Metrics 

Respiratory Muscle Training (POWERbreathe & EMST)

RMT (Respiratory Muscle Training)

• Targeted resistance conditioning of the muscles used for breathing (diaphragm, intercostals, abdominals). Designed to improve stamina, lower perceived exertion, and accelerate recovery.

IMT (Inspiratory Muscle Training)

• Specific strength training focused exclusively on the inhalation phase. Overcomes calibrated resistance to strengthen the diaphragm and external intercostals (e.g., POWERbreathe PLUS and K Series).

EMT / EMST (Expiratory Muscle Strength Training)

• Targeted conditioning focused on the exhalation phase against calibrated pressure. Enhances expiratory force, cough strength, vocal cord control, and abdominal wall activation (e.g., EMST 150, POWERbreathe EX 1).

MIP / PImax (Maximal Inspiratory Pressure)

• A clinical diagnostic metric measuring the maximum negative pressure (in cmH2O) a person can generate during inhalation. Used to determine baseline diaphragm strength and track training progression.

MEP / PEmax (Maximal Expiratory Pressure)

• The maximum positive pressure generated during forceful exhalation. Indicates the strength of the abdominal wall and expiratory muscles.

cmH2O (Centimeters of Water)

• The standard medical unit of pressure used to calibrate respiratory trainers and measure lung muscle strength.

Breathe-Link Software

• PC diagnostic and training software paired with electronic POWERbreathe K Series devices, providing live visual wave feedback, power output (Watts), and historical data analysis.

Not sure which breathing trainer fits your needs?

Whether you need advice on resistance levels, clinical therapy protocols, or sport conditioning, we are here to help.