Exercise Physiology
What is the primary energy system used during a 10-second sprint?
What is the phosphagen (ATP-PC) system?
What does the acronym “GXT” stand for?
What is graded exercise test?
What nutrient is the body’s main source of energy during moderate to high intensity exercise?
What are carbohydrates?
What is the functional unit of a muscle fiber?
What is a sarcomere?
During steady-state exercise, what term describes the point where lactate production equals lactate clearance?
What is the lactate threshold?
What does the acronym RPE stand for?
What is Rating of Perceived Exertion?
How many calories are in one gram of fat?
What is 9 kcal?
Which ion is essential for triggering muscle contraction?
What is calcium (Ca²⁺)?
Which muscle fiber type has the highest oxidative capacity?
What are Type I (slow-twitch) fibers?
According to ACSM, how long should you hold a static stretch?
What is 10 to 30 seconds?
According to ACSM, when should athletes consume carbohydrates after exercise to optimize glycogen recovery?
What is within 30 minutes after exercise?
What is the name of the enzyme that breaks down ATP during muscle contraction?
What is myosin ATPase?
According to the Fick equation, VO₂ = ______ × (a–vO₂ difference).
What is cardiac output?
What is the RPE range corresponding to moderate-intensity exercise on the Borg 6–20 scale?
What is 12–13?
What vitamin is made by the body when exposed to sunlight?
What is vitamin D?
During eccentric contractions, does the muscle lengthen or shorten under tension?
What is lengthen?
What physiological mechanism explains how increased end-diastolic volume leads to a stronger contraction?
What is the Frank-Starling mechanism?
During a graded exercise test, what does a “plateau in VO₂ despite increased workload” indicate?
Achievement of true VO₂max.
Which specific amino acid plays a key role in stimulating muscle protein synthesis after resistance exercise?
What is leucine?
What is the term for the delay between a muscle action potential and the start of contraction?
What is the latent period?