CNC CNC Sports Nutrition & Performance 2

Question 1

What is the recommended protein intake range for strength/power athletes seeking to maximize muscle protein synthesis and hypertrophy?

Accepted Answer

1.6–2.2 g/kg/day

Answer

Current evidence supports 1.6–2.2 g/kg/day as the optimal range for maximizing muscle protein synthesis in resistance-trained individuals, with no added benefit beyond this range.

Question 2

Creatine monohydrate supplementation primarily enhances performance in which type of exercise?

Accepted Answer

High-intensity, short-duration efforts (sprints, lifting)

Answer

Creatine increases phosphocreatine stores in muscle, enhancing ATP resynthesis during repeated bouts of high-intensity, short-duration exercise like sprinting and resistance training.

Question 3

Relative Energy Deficiency in Sport (RED-S) is most likely to develop when:

Accepted Answer

Energy intake is chronically insufficient to support both physiological function and exercise demands

Answer

RED-S occurs when low energy availability — energy intake minus exercise energy expenditure — is insufficient to support normal physiological processes, impairing health and performance across multiple organ systems.

Question 4

Which amino acid is conditionally essential during high-stress states such as intense training and is a primary fuel source for intestinal cells?

Accepted Answer

Glutamine

Answer

Glutamine becomes conditionally essential under metabolic stress; it fuels enterocytes and immune cells and may support gut integrity and immune function in heavily training athletes.

Question 5

Beta-alanine supplementation improves performance primarily by:

Accepted Answer

Elevating muscle carnosine levels, buffering hydrogen ions during high-intensity exercise

Answer

Beta-alanine is a precursor to carnosine; elevated intramuscular carnosine acts as an intracellular pH buffer, delaying fatigue during high-intensity exercise lasting 1–4 minutes.

(CNC) Certified Nutrition Coach Practice Test

(CNC) Certified Nutrition Coach Practice Test

CNC CNC Sports Nutrition & Performance 2