Abstract The cardiopulmonary system is a physiological cornerstone in the adaptive response to hypobaric hypoxia. Portable devices make it feasible nowadays to precisely assess the response to high altitude (HA) expeditions. In this study. we investigated breathing and arterial blood pressure responses during a Himalayan trek from 665 m to 4. https://unitedssports.shop/product-category/bike-parts-tires-29-700/