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J Sport Rehabil. 2007 Aug;16(3):215-21.

The heat tolerance test: an efficient screening tool for evaluating susceptibility to heat.

Author information

1
Heller Institute of Medical Research, Sheba Medical Center, Tel Hashomer, Israel. dmoran@sheba.health.gov.il

Abstract

CONTEXT:

Individuals in the population who are not able to sustain heat and whose body temperature will start rising earlier and at a higher rate than that of others, under the same conditions, are defined as "heat intolerant."

OBJECTIVES:

The applicability of the heat tolerance test (HTT) in identifying individuals' tolerance/intolerance to heat is presented.

SETTING:

HTT is performed according to the following protocol: 120 minutes exposure to 40 degrees C and 40% relative humidity in a climatic chamber while walking on a treadmill, dressed in shorts and T-shirt, at a pace of 5 km/h and 2% elevation. Rectal temperature and heart rate are continuously monitored, and sweat rate is calculated.

RESULTS AND CONCLUSION:

The HTT that is based on controlled exposure to an exercise-heat stress is an applicable and an efficient tool in differentiating between a temporary and permanent state of heat susceptibility.

PMID:
17923727
[Indexed for MEDLINE]

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