ACE CPT Lesson 4 Quiz
At what stage of an exercise bout are phosphagen stores being replenished, remaining lactate being removed from the blood, and the metabolic rate decreasing?
After the cessation of exercise The energy produced after the cessation of exercise (excess postexercise oxygen consumption - EPOC) is used to replenish the depleted phosphagens, to eliminate accumulated lactate if it has not already been cleared from the blood, and to restore other homeostatic conditions (e.g., thermoregulation, tissue resynthesis). As the body returns to normal temperature, the metabolic rate will return to normal. ACE's Essentials of Exercise Science for Fitness Professionals, p. 79
Which hormone promotes triglyceride breakdown to aid in maintaining blood glucose?
Cortisol Cortisol is a glucocorticoid and plays a major role in maintaining blood glucose during prolonged exercise by promoting protein and triglyceride breakdown. Cortisol is also a major stress hormone and is elevated when the body is under too much stress, either from too much exercise or inadequate regeneration. ACE's Essentials of Exercise Science for Fitness Professionals, p. 84
Low-intensity exercise is the best way to lose weight because it burns a higher percentage of fat than exercise at a higher intensity. True/False
False During high-intensity exercise, the total number of calories burned is much higher than during low-intensity exercise, and negates the higher percentage coming from fat. During low-intensity bouts, a higher percentage of calories is coming from fat, but the total number of fat calories is less than during high-intensity workouts. It is important to remember that the total number of calories burned is what determines weight loss, regardless of the source of those calories. ACE's Essentials of Exercise Science for Fitness Professionals, p. 76
Cardiac output is defined as the amount of blood pumped during each heart beat. True/False
False The amount of blood pumped during each heartbeat is called the stroke volume. Cardiac output is the product of stroke volume and heart rate, and therefore is defined as the amount of blood pumped per minute. ACE's Essentials of Exercise Science for Fitness Professionals, p. 70
Which of the following is an adaptation specifically seen with regular weightbearing exercise? -Increase in respiratory capacity -Improved cardiac output efficiency -Increase in bone density -Improved lean body mass
Increase in bone density The concept of the SAID principle is that the body will adapt to the specific challenges imposed upon it, as long as the program progressively overloads the system being trained. Studies have shown that weightbearing exercise promotes improved bone density, which is a key factor in the prevention of osteoporosis, particularly in women. ACE's Essentials of Exercise Science for Fitness Professionals, p. 81-82
Which of the following is NOT a benefit of regular physical activity? -Decreased anxiety and depression -Improved lipid profile -Improved glucose control -Increased diastolic blood pressure
Increased diastolic blood pressure Some of the benefits of regular exercise include improved cardiovascular function, lowered systolic and diastolic blood pressure, decreased body weight and fat mass, improved lipid profile, improved glucose control, decreased anxiety and depression, enhanced feelings of well-being, decreased incidence of several cancers (e.g., colon, breast, prostate), and decreased incidence of osteoporosis. ACE's Essentials of Exercise Science for Fitness Professionals, p. 67-68
Which of the primary energy systems supplies enough energy for no more than 10 seconds of all-out exertion?
Phosphagen system The total amount of ATP and creatine phosphate (CP) stored in muscle is very small, and thus the amount of energy available for muscular contraction is extremely limited. There is probably enough energy available from the phosphagens for only about 10 seconds of all-out exertion, if there were not continual resynthesis of ATP. ACE's Essentials of Exercise Science for Fitness Professionals, p. 72
Which of the following is NOT one of the primary symptoms of altitude sickness? -Shortness of breath -Profuse sweating -Headache -Nausea
Profuse sweating While shortness of breath, headache, and nausea (along with lightheadedness) are all symptoms of altitude sickness, profuse sweating is one of the primary symptoms of heat exhaustion. ACE's Essentials of Exercise Science for Fitness Professionals, p. 87 & 89
Very little of the __________ a person consumes is used for energy production.
Protein Of the three macronutrients, relatively little protein is used for energy production except in extreme cases of caloric restriction. Protein is principally used in the growth and repair of tissue or is excreted. ACE's Essentials of Exercise Science for Fitness Professionals, p. 71-72
Replacing body fluid as it is lost is an important guideline to follow whether exercising in the heat or in the cold. True/False
True Replacing body fluids as they are lost is important when exercising in either the heat or the cold. In the cold, fluid loss may not be as obvious as when exercising in the heat. However, when exercising in cold air, large amounts of water are lost from the body during respiration. ACE's Essentials of Exercise Science for Fitness Professionals, p. 86 & 89
