NCCPT Nutrition and Energy Systems Questions and Answers 1

Question 1

A client performs a set of maximal-effort 100-meter sprints, with each sprint lasting approximately 10-12 seconds. Which energy system is predominantly responsible for supplying ATP during these sprints?

Accepted Answer

Phosphagen (ATP-PC) system

Answer

The Phosphagen (ATP-PC) system is the primary energy source for short-duration, high-intensity activities lasting up to about 10-15 seconds. It utilizes stored ATP and creatine phosphate to rapidly regenerate ATP without the need for oxygen. The glycolytic system becomes more dominant after this initial period, and the oxidative system is used for long-duration, lower-intensity activities.

Question 2

Which of the following macronutrients is the body's and central nervous system's preferred source of fuel, especially during moderate to high-intensity exercise?

Accepted Answer

Carbohydrates

Answer

Carbohydrates are the body's primary and most efficient source of energy, broken down into glucose to fuel muscular contractions and brain function. While fats are used for lower-intensity, long-duration exercise and protein can be used as a last resort, carbohydrates are the main fuel for most training activities.

Question 3

During the first few seconds of a maximal lift, creatine phosphate is broken down to regenerate ATP. What molecule does creatine phosphate donate its phosphate group to in this rapid energy-providing reaction?

Accepted Answer

Adenosine diphosphate (ADP)

Answer

In the ATP-PC system, creatine phosphate donates its phosphate group to adenosine diphosphate (ADP) to rapidly resynthesize adenosine triphosphate (ATP). This reaction, catalyzed by the enzyme creatine kinase, provides immediate energy for muscle contraction before other energy systems can contribute significantly.

Question 4

A client is planning an intense, 60-minute resistance training session. To optimize their energy levels and performance, what is the MOST appropriate pre-workout meal or snack to consume 1-2 hours before the workout?

Accepted Answer

A small, easily digestible snack consisting primarily of complex carbohydrates and a small amount of protein, like oatmeal with a banana.

Answer

An ideal pre-workout meal consumed 1-2 hours before exercise should be rich in easily digestible carbohydrates to top off glycogen stores, with a small amount of protein. High-fat and high-fiber foods should be avoided as they slow digestion and can cause gastrointestinal distress during intense exercise. A high-protein, low-carb meal would not provide sufficient immediate energy.

Question 5

Which of the following food sources is considered a 'complete protein' because it contains all nine essential amino acids?

Accepted Answer

Quinoa

Answer

Quinoa is one of the few plant-based foods that is a complete protein, meaning it provides all nine essential amino acids that the body cannot produce on its own. While black beans, brown rice, and almonds are excellent sources of protein, they are 'incomplete' on their own and must be combined with other foods (like rice and beans together) to provide the full spectrum of essential amino acids.

(NCCPT) National Council for Certified Personal Trainers Practice Test

(NCCPT) National Council for Certified Personal Trainers Practice Test

NCCPT Nutrition and Energy Systems Questions and Answers 1