[Six minute walk test in young native high altitude residents].

Background: The 6-minute walk test is widely used and evaluates the functional capacity to perform sub-maximal exercise, its behavior in healthy young native hight-altitude resident is unknown.

Objective: To describe the behavior of the 6-minute walk test in healthy young native hight-altitude resident.

Material And Methods: Analytical cross-sectional design.

Possible strategies to reduce altitude-related excessive polycythemia.

We sought to determine the effects of three treatments on hemoglobin (Hb) levels in patients with chronic mountain sickness (CMS): ) descent to lower altitude, ) nocturnal O supply, ) administration of acetazolamide. Nineteen patients with CMS living at an altitude of 3,940 ± 130 m participated in the study, which consisted of a 3-wk intervention phase and a 4-wk postintervention phase. Six patients spent 3 wk at an altitude of 1,050 m (low altitude group, LAG), six received supplemental oxygen for 12 h overnight (oxygen group, OXG), and seven received 250 mg of acetazolamide daily (acetazolamide group, ACZG).