CDN Sports Nutrition & Performance 2

Question 1

An endurance athlete asks about sodium intake during a 4-hour ultramarathon. What is the primary reason sodium supplementation is recommended?

Accepted Answer

To prevent hyponatremia from excessive water intake

Answer

To enhance glycogen storage

Answer

To increase VO2 max

Answer

To reduce lactic acid buildup

Question 2

A cyclist wants to maximize fat oxidation during training. At what approximate exercise intensity (% VO2 max) does peak fat oxidation (Fatmax) typically occur in trained athletes?

Accepted Answer

45–65%

Answer

20–30%

Answer

70–80%

Answer

85–95%

Question 3

Which amino acid supplementation strategy is most supported by evidence for reducing exercise-induced muscle damage in strength athletes?

Accepted Answer

BCAA 10g intra-workout

Answer

Glutamine 20g pre-workout

Answer

Leucine 5g post-workout

Answer

Tryptophan 2g pre-workout

Question 4

A female marathon runner presents with the female athlete triad. Which combination of findings is most consistent with this condition?

Accepted Answer

Low energy availability, menstrual dysfunction, low bone mineral density

Answer

High bone density, amenorrhea, high energy availability

Answer

Overtraining syndrome, iron deficiency, high cortisol

Answer

Amenorrhea, high estrogen, stress fractures

Question 5

A strength athlete is using periodization to peak for competition. Which nutritional approach best supports a hypertrophy mesocycle?

Accepted Answer

Caloric surplus with 1.6–2.2g/kg protein

Answer

Caloric deficit with 1.2g/kg protein

Answer

Caloric maintenance with 0.8g/kg protein

Answer

Caloric deficit with 2.5g/kg protein

Question 6

Which ergogenic aid has the strongest evidence for improving high-intensity, short-duration exercise performance by buffering intramuscular acidosis?

Accepted Answer

Beta-alanine

Answer

Creatine monohydrate

Answer

Caffeine

Answer

HMB

Question 7

A collegiate soccer player trains twice daily. What is the recommended carbohydrate intake range (g/kg/day) to support this level of training?

Accepted Answer

6–10 g/kg/day

Answer

3–5 g/kg/day

Answer

10–12 g/kg/day

Answer

1–2 g/kg/day