On November 15th 2012 Chest Journal (Official Publication of the American College of Chest Physicians) published the Abstract of Original Research on: “Respiratory muscle training for respiratory deficits in neurodegenerative disorders: A systematic review” Authors: Alvaro Reyes, PhD; Mel Ziman, PhD; Ken Nosaka, PhD Background: Studies of respiratory muscle training on central neurodegenerative pathologies have been aimed at improving pulmonary function. However, there is no certainty about the effectiveness of respiratory muscle training in patients affected by these groups of disorders. The purpose of this review was to assess the evidence regarding the efficacy of inspiratory and expiratory muscle training on respiratory function in patients with neurodegenerative disorders of the central nervous system. Methods: Studies reporting on inspiratory and expiratory muscle training in patients with neurodegenerative diseases were included. Conclusions: There is some evidence that respiratory muscle training improves a number of respiratory function parameters in patients with Parkinson’s disease and multiple sclerosis; however, the number of studies and their quality are not sufficient to conclude whether inspiratory or expiratory muscle training is effective for improved respiratory function in patients with neurodegenerative disorders of the central nervous system. The above is a short excerpt from the Abstract published online, so please visit Chest Journal online to read more.