Chapter 11

Question 1

A client has repeatedly exhibited a pre-exercise USG range between 1.028 and 1.032. How would a Nutrition Coach interpret this finding?

Answer 1

The client needs to increase their fluid intake between training bouts.

Question 2

At what rate should individuals engaged in exercise in hot environments consume fluids?

Answer 2

There is no single fluid intake rate for all individuals

Question 3

Which of the following responses occurs during exercise associated hyponatremia?

Answer 3

Extracellular fluid shifts inside cells.

Question 4

A client completes three weight-training sessions with a Personal Trainer per week but also completes three, 1-hour group indoor cycle per week (not on the same day). They ask their Nutrition Coach for hydration advice. Which of the following responses would be most appropriate?

Answer 4

“Your workout sessions are not long enough in duration to cause sweat losses that dictate a personal hydration plan. Keep fluids available during exercise, and drink based on thirst.”

Question 5

Which of the following is an electrolyte?

Answer 5

Potassium

Question 6

Which of the following electrolytes is found in the greatest concentration in the intracellular fluid?

Answer 6

Potassium

Question 7

A client’s pre-exercise weight is 75.0 kg. Their post-exercise weight is 73.5 kg. They consumed 0.25 liters of fluid during training. What was the volume of their sweat loss?

Answer 7

1.75 liters

Question 8

A sweat-loss assessment has determined a client loses about 1.5 % of their body mass during a typical training session. The client trains 5 days per week. What is the best hydration advice for this client?

Answer 8

Drink ad libitum. If this does not assure the client, advise an extra 500 mL of water before bed and before reporting to train.

Question 9

Which individual would be most likely to be at risk for exercise associated hyponatremia?

Answer 9

A runner completing a 4.5 hour marathon in cool weather.

Question 10

Which of the following symptoms may be indicative of exertional rhabdomyolysis?

Answer 10

Extremely-dark-colored urine

Question 11

Which range identifies the percentage of body mass that is comprised of water?

Answer 11

50-70%

Question 12

What role does pickle juice play in regards to client hydration status?

Answer 12

Pickle juice contains a high concentration of sodium which can increase thirst drive and aid in consumed fluid retention.

Question 13

A client’s pre-exercise weight is 80.0 kg. Their post-exercise weight is 78.0 kg. They consumed 1.0 liters of fluid during training. What was the volume of their sweat loss?

Answer 13

3.0 liters

Question 14

Which item most accurately describes the role of fluid intake in regards to assisting body-temperature regulation during exercise in the heat?

Answer 14

Fluid intake can blunt increases in temperature during severe dehydration, but it cannot prevent all cases of heat illness.

Question 15

What signaling mechanism triggers thirst due to a significant loss in total body water from sweating?

Answer 15

Baroreceptor

Question 16

Urine-specific gravity is best assessed with which tool?

Answer 16

Refractometer

Question 17

Which of the following compounds can passively cross a cell membrane?

Answer 17

Water

Question 18

A client who trains for triathlons has asked how much fluid he should consume between his morning runs and afternoon bike rides. He has determined his sweat losses from his early morning runs average around 2 liters. Which range of fluid intake would be most appropriate?

Answer 18

2.5-3.0 liters

Question 19

What is the minimum percentage of beverage fluid replacement range that should be suggested for clients who lose more than 3% of their body mass during training and train more than once over a 24-hour period?

Answer 19

110-120%

Question 20

For clients engaged in prolonged endurance events who know what their sweat losses will be, which is the most appropriate advice to give in regards to developing a competition hydration strategy?

Answer 20

Do not drink in excess of sweat losses and limit body mass loss to < 3-4%.

Question 21

A client weighs 70 kg and is training to complete a marathon in a time of about 4 h. The client’s sweat losses are expected to equal around 4 liters (about 6% of body mass). Which fluid intake goal would be most appropriate?

Answer 21

Drink 2 liters of fluid during the race.

Question 22

What is the primary cause of exertional rhabdomyolysis?

Answer 22

An intense exercise session.

Question 23

Which of the following electrolytes is found in the greatest concentration in the extracellular fluid?

Answer 23

Sodium

Question 24

Which item most appropriately describes the use of urine-specific gravity?

Answer 24

It should be assessed multiple times before exercise to determine if clients with heavy sweat losses routinely fail to consume adequate fluid during recovery.