USATF Sports Nutrition & Hydration

Question 1

What is the primary fuel source for high-intensity track and field events lasting less than 10 seconds?

Accepted Answer

Phosphocreatine (PCr) system

Answer

The phosphocreatine (ATP-PCr) system provides rapid energy for maximal efforts under 10 seconds, such as sprints and throws, without requiring oxygen.

Question 2

According to general sports nutrition guidelines, how many hours before competition should an athlete consume a pre-event meal?

Accepted Answer

3–4 hours

Answer

A pre-event meal 3–4 hours before competition allows adequate digestion and glycogen loading without causing gastrointestinal distress during performance.

Question 3

Which macronutrient is most important for muscle repair and recovery following a heavy training session?

Accepted Answer

Protein

Answer

Protein provides the amino acids necessary for muscle protein synthesis and repair of damaged muscle tissue after strenuous training.

Question 4

A USATF coach notices an athlete's urine is dark amber before a meet. What should the coach recommend immediately?

Accepted Answer

Increase fluid intake with water or a carbohydrate-electrolyte solution

Answer

Dark amber urine is a clear indicator of dehydration; increasing fluid intake with water or a carbohydrate-electrolyte solution restores hydration status promptly.

Question 5

What percentage of body weight loss from sweat is generally considered the threshold at which athletic performance begins to decline?

Accepted Answer

2%

Answer

Research consistently shows that a fluid loss of approximately 2% of body weight impairs aerobic performance, cognitive function, and thermoregulation.

USATF - USATF Coaching Education Certification Practice Test

USATF - USATF Coaching Education Certification Practice Test

USATF Sports Nutrition & Hydration