article 2017 11 pages Influence of Inspiratory Muscle Training on Ventilatory Efficiency and Cycling Performance in Normoxia and Hypoxia Eduardo Salazar-Martínez, Hannes Gatterer, Martin Burtscher, José Naranjo Orellana, Alfredo Santalla JournalFrontiers in PhysiologyDOI10.3389/fphys.2017.00133Publication typeOriginal ResearchPopulationsport students View on DOI ↗