All of this research is entirely independent third party research. EasyBreathe UK has had no involvement in any aspect or protocol of these studies (Copy and past the link in your browser window to see the full article).
The effects of inspiratory muscle training on exercise performance in chronic airflow limitation. Pardy RL, Rivington RN, Despas PJ, Macklem PT.
'Using a simple, inexpensive, at-home program, 12 patients with moderate-to-severe chronic air flow limitation trained their inspiratory muscles. All showed increased inspiratory muscle endurance.....' http://www.ncbi.nlm.nih.gov/pubmed/7224355
Inspiratory muscle training in chronic airflow limitation: effect on exercise performance. C Lisboa, C Villafranca, A Leiva, E Cruz, J Pertuze, and G Borzone
'Results showed a significant increment in peak PI, max in both groups...' http://www.erj.ersjournals.com/cgi/content/abstract/10/3/537
Benefit of selective respiratory muscle training on exercise capacity in patients with chronic congestive heart failure Donna M. Mancini, MD; David Henson, MD; John La Manca, PhD; Lisa Donchez, RN; Sanford Levine, MD
'The purpose of this study was to investigate whether selective respiratory muscle training could alleviate dyspnea and improve exercise performance in patients with chronic congestive heart failure' http://circ.ahajournals.org/cgi/content/abstract/91/2/320
Effects of respiratory muscle work on cardiac output and its distribution during maximal exercise Craig A. Harms, Thomas J. Wetter, Steven R. McClaran, David F. Pegelow, Glenn A. Nickele, William B. Nelson, Peter Hanson, and Jerome A. Dempsey
'We combined these findings with our recent study to show that the respiratory muscle work normally expended during maximal exercise has two significant effects on the cardiovascular system: 1) up to 14-16% of the CO is directed to the respiratory muscles; and 2) local reflex vasoconstriction significantly compromises blood flow to leg locomotor muscles' http://jap.physiology.org/cgi/content/abstract/85/2/609
Specific respiratory warm-up improves rowing performance and exertional dyspnea. VOLIANITIS, S., A. K. MCCONNELL, Y. KOUTEDAKIS, and D. A. JONES.
'Conclusion: These data suggest that a combination of a respiratory warm-up protocol together with a specific rowing warm-up is more effective than a specific rowing warm-up or a submaximal warm-up alone as a preparation for rowing performance'. http://www.acsm-msse.org
Effect of specific inspiratory muscle warm-up on intense intermittent run to exhaustion Tom K. Tong, and Frank H. Fu
'Such findings suggested that the specific IM warm-up in IMW may entail reduction in breathlessness sensation, partly attributable to the enhancement of dynamic IM functions, in subsequent exhaustive intermittent run and, in turn, improve the exercise tolerance'. http://www.springerlink.com/content/9031370152040277/