Cerebrovascular Responses to Incremental Exercise During Hypobaric Hypoxia: Effect of Oxygenation on Maximal Performance

Abstract

While performing demanding physical activity for long durations, fluid and electrolyte imbalance is common in athletes, military personnel, and recreational hikers. The military and civilian communities have introduced extensive heat mitigation measures to manage heat strain and reduce the risk of serious exertional heat illnesses (EMI). These heat mitigation measures include fluid and electrolyte replacement guidelines, vigilance, and identifying high-risk individuals. Despite these measures, exercise in hot weather continues to result in preventable injuries and deaths in young healthy individuals. With existing emphasis on appropriate fluid intake during exercise for the avoidance of dehydration, heat illness, and associated performance decrements, there has been a subsequent increase in reported exertional hyponatremia (MYPO) cases related to excessive water intake, elevated sweating rates, excessive sodium losses in sweat, and inadequate sodium intake in soldiers (I), athletes (2,3,4), and recreational hikers (5,6).

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA489111

Entities

People

  • A. W. Subudhi
  • C. S. Fulco
  • M. C. Lorenz
  • R. C. Roach

Organizations

  • United States Army Research Institute of Environmental Medicine

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Altitude
  • Arteries
  • Bandages
  • Blood
  • Blood Flow
  • Blood Vessels
  • Blood Volume
  • Brain
  • Cerebral Hypoxia
  • Department Of Defense
  • Heart Rate
  • High Altitude
  • Measurement
  • Physiology
  • Sea Level
  • United States

Fields of Study

  • Medicine

Readers

  • Aviation Safety Risk Assessment.
  • Cardiovascular Physiology
  • Exercise and Sports Science.