M N Sawka

Summary

Affiliation: Walter Reed Army Medical Center
Country: USA

Publications

  1. ncbi request reprint Hydration effects on thermoregulation and performance in the heat
    M N Sawka
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Comp Biochem Physiol A Mol Integr Physiol 128:679-90. 2001
  2. ncbi request reprint Thermoregulation during cold exposure after several days of exhaustive exercise
    J W Castellani
    Thermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 90:939-46. 2001
  3. ncbi request reprint Thermal and cardiovascular strain from hypohydration: influence of exercise intensity
    S J Montain
    Thermal and Mountain Medicine Division, U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Int J Sports Med 19:87-91. 1998
  4. ncbi request reprint Metabolic and thermal adaptations from endurance training in hot or cold water
    A J Young
    US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
    J Appl Physiol 78:793-801. 1995
  5. ncbi request reprint Physiological problems associated with wearing NBC protective clothing during cold weather
    A J Young
    Thermal and Mountain Division, U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Aviat Space Environ Med 71:184-9. 2000
  6. ncbi request reprint Cross validation of USARIEM heat strain prediction models. U.S. ARMY Research Institute of Environmental Medicine
    B S Cadarette
    U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Aviat Space Environ Med 70:996-1006. 1999
  7. doi request reprint Skin temperature modifies the impact of hypohydration on aerobic performance
    R W Kenefick
    US Army Research Institute of Environmental Medicine, Thermal and Mountain Medicine Division, Kansas St, Natick, MA 01760, USA
    J Appl Physiol 109:79-86. 2010
  8. ncbi request reprint Human thermoregulatory responses during serial cold-water immersions
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 85:204-9. 1998
  9. ncbi request reprint Thermoregulation during cold exposure: effects of prior exercise
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 87:247-52. 1999
  10. ncbi request reprint Thermoregulatory responses to cold water at different times of day
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 87:243-6. 1999

Detail Information

Publications22

  1. ncbi request reprint Hydration effects on thermoregulation and performance in the heat
    M N Sawka
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Comp Biochem Physiol A Mol Integr Physiol 128:679-90. 2001
    ..Hyperhydration provides no advantages over euhydration regarding thermoregulation and exercise performance in the heat...
  2. ncbi request reprint Thermoregulation during cold exposure after several days of exhaustive exercise
    J W Castellani
    Thermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 90:939-46. 2001
    ..These findings suggest that susceptibility to hypothermia is increased by exertional fatigue...
  3. ncbi request reprint Thermal and cardiovascular strain from hypohydration: influence of exercise intensity
    S J Montain
    Thermal and Mountain Medicine Division, U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Int J Sports Med 19:87-91. 1998
    ....
  4. ncbi request reprint Metabolic and thermal adaptations from endurance training in hot or cold water
    A J Young
    US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
    J Appl Physiol 78:793-801. 1995
    ..Thus, exercise-induced body temperature increases are not an important stimulus for glycogen-sparing effects and blunted lactate accumulation associated with endurance training...
  5. ncbi request reprint Physiological problems associated with wearing NBC protective clothing during cold weather
    A J Young
    Thermal and Mountain Division, U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Aviat Space Environ Med 71:184-9. 2000
    ....
  6. ncbi request reprint Cross validation of USARIEM heat strain prediction models. U.S. ARMY Research Institute of Environmental Medicine
    B S Cadarette
    U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    Aviat Space Environ Med 70:996-1006. 1999
    ..This study was a cross validation of three heat strain prediction models developed at the U.S. Army Research Institute of Environmental Medicine: the ARIEM, HSDA, and ARIEM-EXP models ability to predict core temperature...
  7. doi request reprint Skin temperature modifies the impact of hypohydration on aerobic performance
    R W Kenefick
    US Army Research Institute of Environmental Medicine, Thermal and Mountain Medicine Division, Kansas St, Natick, MA 01760, USA
    J Appl Physiol 109:79-86. 2010
    ..6% for each additional 1 degrees C T(sk); and 3) cardiovascular strain from high skin blood flow requirements combined with blood volume reductions induced by hypohydration is an important contributor to impaired performance...
  8. ncbi request reprint Human thermoregulatory responses during serial cold-water immersions
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 85:204-9. 1998
    ..An alternative explanation is that shivering habituation develops rapidly during serially repeated cold exposures...
  9. ncbi request reprint Thermoregulation during cold exposure: effects of prior exercise
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 87:247-52. 1999
    ..The combination of exercise intensity and duration studied in these experiments did not fatigue the shivering response to cold exposure...
  10. ncbi request reprint Thermoregulatory responses to cold water at different times of day
    J W Castellani
    Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 87:243-6. 1999
    ..These data indicate that shivering and vasoconstriction are not affected by time of day. These observations raise the possibility that CWI may increase the risk of hypothermia in the early morning because of a lower initial T(core)...
  11. ncbi request reprint Heat strain imposed by toxic agent protective systems
    B S Cadarette
    U S Army Research Institute of Environmental Medicine, Natick, MA, USA
    Aviat Space Environ Med 72:32-7. 2001
    ..The new generation toxic cleanup uniform systems effectively reduced heat stress and increased work capabilities compared with the standard TAP suit...
  12. ncbi request reprint Physiologic tolerance to uncompensable heat: intermittent exercise, field vs laboratory
    M N Sawka
    U S Army Research Institute of Environmental Medicine, Natick, MA 01760 5001, USA
    Med Sci Sports Exerc 33:422-30. 2001
    ..In addition, the relationship between core temperature and exhaustion from heat strain previously established in laboratory studies was compared with field studies...
  13. ncbi request reprint Impact of muscle injury and accompanying inflammatory response on thermoregulation during exercise in the heat
    S J Montain
    Thermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 89:1123-30. 2000
    ..The results suggest that profuse muscle injury can increase body core temperature during exercise-heat stress and that the added heat storage cannot be attributed solely to increased heat production...
  14. ncbi request reprint Hyponatremia associated with exercise: risk factors and pathogenesis
    S J Montain
    Military Nutrition Division, U S Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Exerc Sport Sci Rev 29:113-7. 2001
    ..We review the risk factors for development of this condition and discuss evidence that there is a population at increased risk of hyponatremia during prolonged exercise...
  15. ncbi request reprint Role of core temperature as a stimulus for cold acclimation during repeated immersion in 20 degrees C water
    C O'BRIEN
    Thermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 5007, USA
    J Appl Physiol 89:242-50. 2000
    ..Skin temperature reduction alone may be a sufficient stimulus during CA for increased vasoconstrictor response, but core temperature reduction appears necessary to enhance sympathetic activation during cold exposure...
  16. pmc Exercise associated hyponatraemia: quantitative analysis to understand the aetiology
    S J Montain
    US Army Research Institute of Environmental Medicine, Building 42, Kansas St, Natick, MA 01760 5007, USA
    Br J Sports Med 40:98-105; discussion 98-105. 2006
    ..The development of symptomatic hyponatraemia consequent on participation in marathon and ultraendurance races has led to questions about its aetiology and prevention...
  17. ncbi request reprint Bioelectrical impedance to estimate changes in hydration status
    C O'BRIEN
    U S Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Int J Sports Med 23:361-6. 2002
    ..The results indicate that current BIA methodology may not provide valid estimates of total body water when hydration state is altered...
  18. ncbi request reprint Hypohydration effects on skeletal muscle performance and metabolism: a 31P-MRS study
    S J Montain
    United States Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
    J Appl Physiol 84:1889-94. 1998
    ..The time constants for phosphocreatine recovery were also similar between trials. In summary, moderate hypohydration reduces muscle endurance, and neither H+ nor Pi concentration appears to be related to these reductions...
  19. ncbi request reprint Cold strain index applied to exercising men in cold-wet conditions
    J W Castellani
    United States Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Am J Physiol Regul Integr Comp Physiol 281:R1764-8. 2001
    ....
  20. ncbi request reprint Bioimpedance assessment of hypohydration
    C O'BRIEN
    U S Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Med Sci Sports Exerc 31:1466-71. 1999
    ..This study examined the utility of bioimpedance spectroscopy (BIS) for assessing total body water (TBW) changes associated with moderate (6-7% TBW), hypertonic (HH), and isotonic (IH) hypohydration...
  21. ncbi request reprint Heat strain evaluation of chemical protective garments
    L Levine
    United States Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
    Aviat Space Environ Med 72:329-35. 2001
    ....
  22. ncbi request reprint Hyponatremia associated with overhydration in U.S. Army trainees
    S J Montain
    Department of Family Practice and Community Medicine, Martin Army Community Hospital, Fort Benning, GA 31905, USA
    Mil Med 166:405-10. 2001
    ..Field medical policy should recognize the possibility of overhydration. Specific evacuation criteria should be established for exertional illness...