Topics For Study On Chapter 4 – PE 3317

What is the first bioenergetic pathway to become active at the onset of exercise?

Define the term oxygen deficit

What system would prevail in providing energy during a maximal 400-meter race (i.e., 50 to 60 seconds?

What system would prevail in providing energy for a 40-yard dash?

Where does energy primarily come from in performing long-term exercise (i.e., >20 min)?

Define the lactate threshold.

What is the lactate threshold possibly due to?

What does a respiratory quotient (RQ) of 0.95 during steady-state exercise suggest?

What percent is the contribution of protein to the fuel supply at the completion of two hours of aerobic exercise in a normal state of nutrition?

Where does most of the carbohydrate (e.g., for a rested, well-fed athlete) used as a substrate during exercise comes from?

Define lipolysis.

What happens fat metabolism when carbohydrate stores are depleted in the muscle during exercise?

What is the bulk of the oxygen debt or excess post-exercise oxygen consumption (EPOC) due to?

What is level of Oxygen debt following heavy exercise when compared with light exercise?

What happens to the Kreb cycle intermediates if there was a depletion of muscle glycogen during exercise?

What does a bout of intense exercise have on the body’s ability to remove lactic acid in the muscle?

What causes a slow rise in oxygen uptake over time during high-intensity, prolonged exercise?

Why do trained individuals have a lower oxygen deficit while exercising?

What activities use energy derived predominantly from the ATP-CP system?

What causes the drift upward of VO₂ during constant-load exercise in a hot environment?

What is formed when the glycolytic production of pyruvate and NADH exceeds the rate at which these products are shuttled into the mitochondria?

How is the R (respiratory exchange ratio) affected by an accumulation of H⁺ in the blood?

What does a respiratory exchange ratio value of 1.0 indicate?

What does the respiratory exchange ratio indicate if it equals the respiratory quotient during maximal exercise?

Does blood glucose remain a source of fuel during exercise even after muscle glycogen has been depleted?

Does Fat contains more energy per gram than carbohydrates?

If so, can ATP be produced more rapidly from fats than from carbohydrates?

Do trained athletes have a higher Anaerobic Threshold when making the transition from rest into a steady-state of exercise?

What causes muscle soreness occurring 24-48 hours after exercising?

What is the relationship of the Cori Cycle to Lactic Acid?

How does increased temperature affect E.P.O.C.?

How does decreased muscle O₂ stores affect E.P.O.C.?

How does the intensity of the exercise affect E.P.O.C.?

How does higher concentrations of epinephrine in the blood affect E.P.O.C.?

What is the Best (valid0 measure of cardiovascular fitness?

How would you expect muscle and blood O₂ stores to be affected during exercise and then during recovery?

What percent of VO₂ max is the optimal exercise intensity for burning fat (approximately)?

How many millimoles per liter of O2 would it take to reach the onset of blood lactate accumulation (OBLA)? (millimoles is a .001 of a mole – 1 mole is equal to 1 gram of a molecular weight in chemistry).