Sweat Test

What is a Sweat Test?
The sweat test is an invaluable method of determining sweat and electrolyte loses from the athlete during training and competition.

What is a Sweat Test beneficial?
It is well documented in the scientific literature the effects that dehydration and electrolyte losses have on the thermoregulatory and cardiovascular systems of the body. Sweat losses of 2% of total body weight can significantly reduce aerobic capacity and negatively impact core temperature regulation. Sweat losses of 1-2 liters/hour with sodium losses of 300mg/liter have been documented in endurance events lasting longer than 60 minutes.

How is the Sweat Test measured?
Quest Sports Science Center offers a sweat test in our lab to include the following:

1. Pre-exercise weight and urine specific gravity.

2. 60 min of running or cycling at 70% VO2 Max, 80 degrees F and 50% relative humidity.

3. Ad libitum fluid consumption during testing.

4. Post-exercise weight to include weight of fluid consumed during exercise.

5. Sodium (Na) concentration assessment test.

The athlete will be debriefed on the results of the test to include:

1. Weight of fluid lost during exercise for 60 minutes at 80 degrees F and 50% humidity.

2. Sodium (Na) concentration losses over the 60 minutes.

3. Protocol will be developed for the athlete to replace sodium and fluids lost during events lasting 60 minutes or longer.

Cost: $175