Objective: The main objective is to determine the normal physiological values of heart rate, respiratory rate, oxygen saturation, blood pressure, and hematocrit in populations living at altitudes between 1,000 and 3,500 meters above sea level in the Cajamarca Region during the year 2023. Methods: The study design was a descriptive observational cross-sectional study with a non-probabilistic sampling method. Inclusion criteria considered inhabitants aged 1 to 70 years, of both sexes, both native and non-native, who had resided for more than one year at the measured altitude and agreed to participate by signing the informed consent form. In the case of minors, consent was obtained from their parents. Exclusion criteria included a history of cardiovascular, pulmonary, or hematological disease; presence of respiratory symptoms at the time of the test such as cough, sputum, or dyspnea; diagno...