Nutrition for Sport Performance Flashcards
7 cards from real CSCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Nutrition for Sport Performance flashcards as text
Creatine supplementation is MOST effective for improving performance in which type of activity?
Answer: Repeated high-intensity bouts with short recovery periods
Creatine enhances phosphocreatine resynthesis, improving repeated high-intensity, short-duration performance such as sprints, heavy lifts, and interval sports.
Which ergogenic aid has the MOST consistent scientific evidence supporting performance enhancement across a wide range of sports?
Answer: Creatine monohydrate
Creatine monohydrate has the largest and most consistent evidence base of any legal ergogenic supplement, improving power, strength, and high-intensity exercise capacity.
Caffeine enhances athletic performance primarily through which physiological mechanism?
Answer: Blocking adenosine receptors in the central nervous system
Caffeine primarily blocks adenosine receptors in the central nervous system, reducing perceived exertion and delaying the onset of fatigue.
Iron deficiency anemia would most adversely affect which aspect of athletic performance?
Answer: Aerobic endurance capacity
Iron is a component of hemoglobin; iron deficiency reduces the oxygen-carrying capacity of blood, most severely impairing aerobic endurance performance.
"Low energy availability" in athletes is BEST described as:
Answer: Energy intake minus exercise energy expenditure leaving insufficient energy for physiological functions
Low energy availability is defined as dietary energy intake minus exercise energy expenditure, with the remainder being insufficient to support normal physiological processes such as hormone production and bone remodeling.
Beta-alanine supplementation improves high-intensity exercise performance primarily by:
Answer: Increasing muscle carnosine concentration to buffer hydrogen ions
Beta-alanine is a rate-limiting precursor to carnosine; elevated muscle carnosine acts as an intracellular buffer against hydrogen ion accumulation during high-intensity exercise, delaying acidosis-related fatigue.
The recommended daily protein intake for strength and power athletes, according to the NSCA and ACSM, is approximately:
Answer: 1.4–1.7 g/kg/day
The NSCA and ACSM recommend 1.4–1.7 g/kg/day of protein for strength and power athletes to support muscle protein synthesis, repair, and hypertrophic adaptation.