Strength & Conditining Review Questions

What is is the ultimate source of energy for a muscular contraction?

Which of the following substances can be metabolized anaerobically? (Proteins, Carbohydrates, Fat, Glycerol)

The predominant energy system used during a training session depends primarily on what?

The production of lactate acid results from the activation of which of the following energy systems?

Which of the following energy systems has the highest rate of energy production?

How much ATP is produced via the oxidative energy system from the degradation of one glucose molecule?

Which energy system is predominantly active at the initiation of exercise?

Which of the following enzymes catalyzes the rate limiting step of glycosis?

To which of the following structures do the cross bridges attach during a muscle action?

Which of the following substances regulates muscle actions?

Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit?

Which of the following muscle fiber types is the most beneficial for a marathon runner?

When throwing a baseball, an athlete's arm is rapidly stretched just prior to throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity?

From which of the following is the hearts electrical impulse normally initiated?

Which of the following occurs during the QRS complex of a typical ECG?I. depolarization of the atrium II. depolarization of the atriumIII. repolarization of the ventricle IV. depolarization of the ventricle