We recently came across an article that reported on how patients with Cystic Fibrosis (CF) have less exercise capacity than their peers, even though their lungs may be relatively healthy. Studies by clinical exercise physiologist Dr. Ryan Harris (Georgia Prevention Institute) of the Medical College of Georgia at Georgia Regents University have shown that it’s actually leg fatigue as opposed to lung capacity that is the limiting factor when it comes to exercise capacity, and suggests that this could be as a result of insufficient levels of blood and oxygen reaching their exercising muscles. Data from the studies suggested that if people with CF exercised more they could reduce other medical complications, improving their quality of life and longevity. Results from Dr. Harris and colleague Dr. McKie’s studies have indicated that during peak exercise the Cystic Fibrosis subjects consumed 14% less oxygen while their expelled air had higher oxygen levels, “indicating that their muscles were not as efficient at using it.” This is where POWERbreathe Inspiratory Muscle Training (IMT) could help. In the study ‘Inspiratory muscle training enhances pulmonary O2 uptake kinetics and high-intensity exercise tolerance in humans’ the results indicated that “the enhanced exercise tolerance observed after IMT might be related, at least in part, to improved Vo(2) dynamics, presumably as a consequence of increased blood flow to the exercising limbs.” POWERbreathe was the actual Inspiratory Muscle Training device used in this study. POWERbreathe IMT/RMT (Respiratory Muscle Training) For people who experience breathing difficulties, such as those with Cystic Fibrosis, the POWERbreathe Medic, POWERbreathe Classic Level 1 (LR) and POWERbreathe Plus Level 1 (LR) have been selected by our CF customers as the most suitable. They all offer a Light Resistance (LR) and a variable load setting so that each individual is able to find the most appropriate setting for them. One of our POWERbreathe users with CF has written a blog about how he incorporated his POWERbreathe training into his daily physiotherapy, and how he used it in conjunction with the Shaker Plus, a mucus clearance device. (He used the Shaker Plus for mucus clearance during physio and the POWERbreathe after his inhalers to help suck the particles further down.) Drug-free mucus clearance devices by POWERbreathe People with CF have to contend with glue-like mucus which acts like a magnet for bacteria, and it’s this mucus that clogs up organ function, including the function of the lungs. The Shaker Classic, Shaker Deluxe and Shaker Plus are all drug-free solutions for mobilising pulmonary secretions such as mucus, and they work by ‘shaking’ the mucus loose. The original article that we referred to at the beginning of this blog can be found on Georgia Regents University & Health System News and this is one of the previous studies referred to in the article, ‘Impaired blood vessel function found in cystic fibrosis patients.’ We hope you found this blog helpful, but if there's anything more you'd like to know then please leave a comment here or on the POWERbreathe Forum, on Facebook or Twitter as we'd be happy to help.