University of California pulmonologists have developed a device that reduces shortness of breath by 72% in patients with chronic obstructive pulmonary disease (COPD). Research published in the journal respiratory care.
People with COPD take longer to clear the air they breathe from their lungs because of the narrower airways in their lungs. Therefore, with rapid breathing, for example, during physical exertion, air is retained in the lungs. This accumulation of air causes shortness of breath and a decrease in oxygen levels. As the disease progresses, people become less active and more isolated.
The device, called PEP Buddy, is about the size of a whistle and can be worn around the neck. It is designed for daily use, including during or after physical activity. The device prolongs the exhalation time by facilitating the exit of air from the lungs. Scientists tested it on people with COPD and shortness of breath.
Shortness of breath was significantly reduced and quality of life improved in 72% of the participants. In addition, the decline in oxygen levels during exercise stopped in 36% of patients. This is the first mechanical device to have such an effect on oxygen levels in people with COPD.