Exercise Physiology ALA4

An individual who participates in consistent aerobic training will have a higher crossover point and therefore utilize more fats during moderate-intensity exercises.

• True

• False

The correct order of muscle fiber recruitment is

• largest to smallest

• Type I, Type IIa, Type IIx

• Type IIa, Types IIx, Type 1

• Type IIx, Type IIa, Type I

Haley completed a moderate intensity 1-mile run in 10 minutes. How long would Haley’s EPOC last?

• 40 minutes

• 30 minutes

• 20 minutes

• 10 minutes

Jason and Lauryn go on a run. This is Jason’s first run in a few months; however, Lauryn runs 2-3 miles every day. They both go on a run together at a 8 minute mile pace, what would you expect to happen? 

• Jason would experience fatigue sooner and higher lactate levels than Lauryn

• Jason would be able to sustain this pace longer then Lauryn

• Lauryns heart rate would be higher

• Jason would primarily be using fats to fuel his run

Lucia is jogging at a steady-state intensity that is slightly above her lactate threshold and crossover point. Which energy system is primarily supplying her energy at this stage?

• Lactate transition system

• Anaerobic glycolysis

• Oxidative

• ATP-Pcr

Lauryn has been training consistently and intensely for the last 5 years. Which of the following are chronic adaptations that would occur? (Select all that apply)

• Increase in lipolysis

• Decrease in FA transport

• Increase in FA metabolism

• Strong Heart

• Decrease in hemoglobin production in cell

Select all of the following factors that contribute to improvement of VO2 Max.

• Greater efficiency of oxygen utilization by the muscles.

• Reduction in body fat percentage

• Increases in the number and size of mitochondria

• Oxygen is delivered more efficiently

Julie participated in a high-intensity interval training (HIIT) session. Following her workout she still finds she is breathing heavier than normal. Which of the following best describes the physiological mechanism behind this increased consumption of oxygen (EPOC)?

• It results from the body's efforts to replenish depleted ATP stores and restore cellular homeostasis.

• This occurs due to a temporary decrease in heart rate and respiratory rate immediately after exercise.

• It is caused by a rapid increase in blood lactate levels during intense exercise.

• It is primarily driven by an increase in body temperature and metabolic rate during exercise.

Which of the following are likely contributors to how aerobically trained individuals can clear out lactate faster than untrained individuals?

•  

  Trained muscles produce more lactate during exercise, therefore improving lactate tolerance

• Trained muscles have improved lactate clearance.

• Aerobically trained individuals have higher concentrations of mitochondria, which aids in lactate metabolism.

• Glycogen storage in trained muscles reduces lactate production.