Physiological Variables Associated with the Development of Acute Mountain Sickness

Area of Science:

• Altitude physiology
• Human physiology
• Environmental medicine

Background:

• Acute mountain sickness (AMS) is a common condition affecting individuals ascending to high altitudes.
• Identifying physiological predictors of AMS is crucial for prevention and management.

Purpose of the Study:

• To determine physiological variables associated with the development of AMS.
• To investigate the relationship between blood parameters, oxygen saturation, and AMS incidence.

Main Methods:

• Eighty-four low-altitude resident young men were exposed to 4000 m altitude.
• Peripheral oxygen saturation (SpO2), heart rate, blood pressure, and blood counts were measured.
• AMS diagnosis was based on the revised Lake Louise Criteria.

Main Results:

• 40.5% of participants developed AMS.
• AMS group showed significantly lower SpO2 levels and higher neutrophil percentages compared to the non-AMS group.
• Neutrophil count and SpO2 were significant predictors of AMS development.

Conclusions:

• Sustained SpO2 and elevated neutrophil counts are associated with AMS development in young males.
• These physiological markers may serve as indicators for AMS risk assessment.
• Further research can explore interventions targeting these physiological pathways.