PImax/MIP (Maximal Inspiratory Pressure at the Mouth) PEmax/MEP (Maximal Expiratory Pressure at the Mouth) SNIP (Sniff Nasal Inspiratory Pressure)
In addition, with the optional PUMA PC software connected via Serial Port, live graphical displays, predicted values, incentive animations, measurements of fatigue (MRPD, MRR and Tau) and much, much more are available.
The MicroRPM is easy to use, operated by a simple three setting slide bar (Off, MIP/MEP, SNIP) and comes in a sturdy carry case. It is battery operated with a clear digital display of the results in CMH2O, using the latest piezo resistive pressure sensing technology for accurate and reliable measurement.
The respiratory muscles perform the vital function of sustaining ventilation, driving the inspiratory and expiratory breathing cycle, determining the ability to breathe.
The deterioration of the respiratory muscles, a result of pulmonary disease (COPD muscle atrophy, dystrophy and myopathy) or neuromuscular conditions (such as Motor Neurone Disease, Multiple Sclerosis, Surgical Trauma and Tetraplegia), leads to increasing levels of dyspnoea, disability and the eventual dependence upon mechanical ventilation. The above list is by no means exhaustive, but the early detection of respiratory muscle weakness, not always possible through the monitoring of lung volumes alone, enables early and effective treatment, with an improved quality of life as a result.
The lightweight MicroRPM is a simple, convenient device to quickly and efficiently monitor the strength of this important muscle group, to aid the early diagnosis of the respiratory muscle condition and monitor the subsequent effects of treatment (e.g. pharmacology, nutrition) and rehabilitation (e.g. exercise, inspiratory muscle training).
Maximal Inspiratory Pressure at the mouth is measured at RV (Residual Volume), lungs empty. A forceful inspiratory manoeuvre leading to a sustained maximal effort, during which time the best one second average is calculated, is followed by a natural release upon fatigue. The best result from 3 tests, with a suitable 1 or 2 minute recovery period between efforts, is used as the value of inspiratory muscle strength.
Maximal Expiratory Pressure at the mouth is measured at TLC (Total Lung Capacity), lungs full. A forceful expiratory manoeuvre leading to a sustained maximal effort, during which time the best one second average is calculated, is followed by a natural release upon fatigue. The best result from 3 tests, with a suitable 1 or 2 minute recovery period between efforts, is used as the value of expiratory muscle strength.
Sniff Nasal Inspiratory Pressure is measured at FRC (Functional Residual Capacity), the bottom of the tidal breathing cycle, through one plugged nostril whilst the other remains open. A forceful, maximal inspiratory sniff is performed and a peak pressure value reported. The best result from between 5 and 10 tests is used as the value of sniff nasal inspiratory muscle strength.