The Pop Quiz below contains 3 questions from the following knowledge area of the CSCS exam. Failure to correctly answer questions may suggest an area that needs further review.

Exercise Sciences

E. Apply Knowledge of Bioenergetics and Metabolism

1. Charecteristics of the energy systems
2. Effects of manipulating training variable (i.e., mode, intensity, duration, volume and work:rest ratio) to target specific energy systems

When answering the questions, please choose the “Best” answer.

1. The phosphagen energy system would primarily supply ATP for which of the following activities?

 Marathon

 100 meter dash

 1600 meters

 400 meter dash

The phosphagen energy system primarily supplies ATP for high-intensity activities of short duration.

2. A male athlete fatigues during the running of a marathon and must pull out of the race, which is the most probable factor that limited his performance in the race?

 Depleted fat stores

 Depleted muscle glycogen

 Depleted creatine phosphate

 Low pH

During an activity of long duration/low intensity depleted muscle glycogen is the most probable limiting factor when compared to depleted creatine phosphate, fat stores, and low pH.

3. Which of the following pathways/systems has the highest capacity for energy production?

 Oxidation of carbohydrates

 Oxidation of fats

 Slow glycolysis

 Phosphagen

The oxidation of fats and proteins has the highest capacity for energy production but the slowest rate of energy production.

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