Effects of respiratory muscle training on respiratory mechanics and energy cost

STUDY:

The effects of respiratory muscle training on respiratory mechanics and energy cost 

Respiratory Physiology & Neurobiology Volume 200, 15 August 2014, Pages 7–17

Abstract:

“Resistance respiratory muscle training (RRMT) increases respiratory muscle strength and can increase swimming endurance time by as much as 85%.

The purpose of this study was to examine potential mechanisms by which RRMT improves exercise endurance.”

Method:

“Airway resistance (R aw), exhaled nitric oxide output , and respiratory duty cycle (TI/TTot) were determined before and after four weeks of RRMT.”

Conclusions:

“Resistance respiratory muscle training decreased TI/TTot respiratory duty cycle (−10% at rest at 1 ATA - atmospheres of absolute pressure, (−17% at 2.7 ATA during submersed exercise), (−6% at 2.7 ATA during submersed exercise), and R aw airway resistance (−34% inspiratory at 4.6 ATA submersed, −38% expiratory at 2.7 ATA dry), independent of changes in .

Most importantly, respiratory muscle efficiency increased (+83% at 2.7 ATA submersed).”

View the Abstract. 

View list of published research that used POWERbreathe as the IMT intervention of choice in POWERbreathe in Research.

Find more published research on our Inspiratory Muscle Training Research blog.

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