CSC Nutrition and Supplementation 2 — Questions and Answers
Question 1: Which vitamin is most commonly deficient in strength athletes who train indoors and has implications for muscle function?
- Vitamin C
- Vitamin D (Correct answer)
- Vitamin B12
- Vitamin E
Correct answer: Vitamin D
Vitamin D deficiency is prevalent among indoor athletes and can impair muscle function, strength, and recovery due to its role in muscle cell receptors.
Question 2: What is the recommended carbohydrate intake during a strength training session lasting over 60 minutes?
- No carbohydrates needed intra-workout
- 10–15 g every 15 minutes
- 30–60 g per hour (Correct answer)
- 100 g per hour
Correct answer: 30–60 g per hour
Consuming 30–60 g of carbohydrates per hour during extended training sessions helps maintain blood glucose and sustain performance.
Question 3: Which of the following is an evidence-based ergogenic aid for improving strength and power output?
- Glutamine supplementation
- Branched-chain amino acids (BCAAs) alone
- Beta-alanine for sprint performance
- Caffeine (Correct answer)
Correct answer: Caffeine
Caffeine is one of the most well-researched ergogenic aids, consistently shown to improve strength, power, and endurance via adenosine receptor antagonism.
Question 4: What is the primary role of carbohydrate consumption in the post-workout recovery period for strength athletes?
- Stimulate muscle protein synthesis directly
- Replenish muscle glycogen stores (Correct answer)
- Reduce inflammation acutely
- Increase growth hormone secretion
Correct answer: Replenish muscle glycogen stores
Post-workout carbohydrate intake primarily serves to replenish depleted muscle glycogen, preparing athletes for subsequent training sessions.
Question 5: An athlete reports chronic fatigue, poor recovery, and declining strength. Which nutritional deficiency should a strength coach suspect first?
- Vitamin A
- Zinc
- Caloric deficit (low energy availability) (Correct answer)
- Sodium
Correct answer: Caloric deficit (low energy availability)
Low energy availability due to insufficient caloric intake is the most common nutritional cause of chronic fatigue, poor recovery, and performance decline in athletes.
Question 6: Which mineral plays a critical role in over 300 enzymatic reactions and is commonly depleted through sweat during intense training?
- Iron
- Calcium
- Magnesium (Correct answer)
- Potassium
Correct answer: Magnesium
Magnesium is involved in over 300 enzymatic reactions including ATP synthesis and protein synthesis, and is lost through sweat during intense exercise.
CSC Nutrition and Supplementation 2
Which vitamin is most commonly deficient in strength athletes who train indoors and has implications for muscle function?