CSCS Nutrition for Sport Performance 2

Question 1

Creatine supplementation is MOST effective for improving performance in which type of activity?

Accepted Answer

Repeated high-intensity bouts with short recovery periods

Answer

Marathon running (42 km)

Answer

Steady-state aerobic cycling at 60% VO2max

Answer

Static flexibility training

Question 2

Which ergogenic aid has the MOST consistent scientific evidence supporting performance enhancement across a wide range of sports?

Accepted Answer

Creatine monohydrate

Answer

Glutamine

Answer

Branched-chain amino acids (BCAAs)

Answer

HMB (β-hydroxy-β-methylbutyrate)

Question 3

Caffeine enhances athletic performance primarily through which physiological mechanism?

Accepted Answer

Blocking adenosine receptors in the central nervous system

Answer

Increasing muscle glycogen storage

Answer

Stimulating muscle protein synthesis post-exercise

Answer

Elevating blood bicarbonate concentration

Question 4

Iron deficiency anemia would most adversely affect which aspect of athletic performance?

Accepted Answer

Aerobic endurance capacity

Answer

Peak anaerobic power output

Answer

Maximal strength production

Answer

Reaction time and coordination

Question 5

"Low energy availability" in athletes is BEST described as:

Accepted Answer

Energy intake minus exercise energy expenditure leaving insufficient energy for physiological functions

Answer

Not consuming enough dietary fat for hormonal function

Answer

Inadequate protein intake relative to training volume

Answer

Consuming too many simple carbohydrates pre-exercise

Question 6

Beta-alanine supplementation improves high-intensity exercise performance primarily by:

Accepted Answer

Increasing muscle carnosine concentration to buffer hydrogen ions

Answer

Increasing phosphocreatine stores in muscle

Answer

Stimulating muscle protein synthesis via mTOR

Answer

Raising blood bicarbonate concentration

Question 7

The recommended daily protein intake for strength and power athletes, according to the NSCA and ACSM, is approximately:

Accepted Answer

1.4–1.7 g/kg/day

Answer

0.8 g/kg/day (same as sedentary individuals)

Answer

2.5–3.0 g/kg/day

Answer

0.5–1.0 g/kg/day