CSSD Hydration Strategies 4

Question 1

An athlete training twice daily in summer heat has a resting morning urine osmolality of 900 mOsm/kg for three consecutive days. What does this indicate?

Accepted Answer

Chronic mild dehydration requiring increased daily fluid intake

Answer

Consistently elevated morning urine osmolality above 700–900 mOsm/kg suggests incomplete recovery of fluid balance between training sessions.

Question 2

Which physiological adaptation from heat acclimatization most directly benefits hydration status during subsequent heat exposure?

Accepted Answer

Earlier onset and increased sweat rate with lower sodium content

Answer

Heat acclimatization results in earlier onset of sweating, greater total sweat production, and lower sweat sodium concentration, improving thermoregulation while conserving electrolytes.

Question 3

A basketball player drinks 500 mL of a 6% carbohydrate sports drink 15 minutes before a game. What is the primary benefit regarding hydration?

Accepted Answer

Ensures euhydrated state entering the game and provides a substrate reserve

Answer

Pre-game fluid intake ensures athletes begin exercise in a euhydrated state, optimizing cardiovascular function and thermoregulatory capacity from the outset.

Question 4

Which environmental condition MOST increases sweat rate for a given exercise intensity?

Accepted Answer

High temperature combined with high relative humidity

Answer

High humidity impairs evaporative cooling, forcing greater sweat production to maintain thermoregulation even when air temperature may be moderate.

Question 5

When advising a team sport athlete about alcohol consumption the night before competition, what is the CSSD's primary hydration concern?

Accepted Answer

Alcohol's diuretic effect promotes dehydration that may persist into game day

Answer

Alcohol inhibits ADH secretion, promoting diuresis and dehydration that can persist for hours, leaving athletes in a hypohydrated state before competition.

(CSSD) Board Certified Specialist in Sports Dietetics Practice Test

(CSSD) Board Certified Specialist in Sports Dietetics Practice Test

CSSD Hydration Strategies 4