Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 8RQ
In endurance events, body temperature can reach 40–42 °C. What is normal body temperature? Which two thermoregulatory mechanisms are triggered by this change in temperature during exercise?
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Besides blood glucose level and blood oxygen level, what other body conditions are also disrupted by your exercise? Name at least two.
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Endurance athletes sometimes follow the exercise-and-diet plan described here: 7 days before an event, do exhaustive exercises so as to all but deplete glycogen stores. For the next 2 to 3 days, consume few carbohydrates and do moderate- to low- intensity exercises. Finally, 3 to 4 days before the event, consume a diet rich in carbohydrates. Explain the benefits of this regime.
Chapter 25 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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- Which of the following nutrients is most helpful for promoting endurance during sustained activity? Question 39 options: a) Carbohydrate b) Protein c) Water d) Fatarrow_forwardIf an individual is exercising at a low intensity for several hours, how would the concentrations of substrates change in plasma? Plasma levels of free fatty acids would increase as triglycerides are broken down for sustained energy. They remain stable and unaffected by exercise. Plasma glucose levels would gradually increase the longer exercise continues. Plasma levels of amino acids would increase, as protein breakdown would be needed to fuel continued exercisearrow_forwardThe oxygen consumed after strenuous exercise stops is significantly greater than the oxygen deficit and is termed excess postexercise oxygen consumption (EPOC). Why is so much more oxygen required after intense exercise?arrow_forward
- Oxidation of ingested CHO during exercise depends on each of the following variables except... Group of answer choices CHO flavor. ingested amount. exercise intensity. type of CHO.arrow_forwardWhat is the main source during aerobic exercises? What is the benefit of aerobic respiration in the body? What is the benefit of anaerobic respiration in the body? How often does an individual should undergo aerobic and anaerobic exercises?arrow_forwardHow effective is aerobic exercise as a way to manage stress and improvewell-being?arrow_forward
- On the diagram below, the fat burning zone is at a fairly low exercise intensity. Describe why the body would burn more fat in the "fat burning zone" compared to "hardcore training" or "maximum effort".arrow_forwardGlycogen depletion resulting from intense, extensive exercise can lead to exhaustion and the inability to continue exercising. Some people also experience dizziness, an inability to concentrate, and a loss of muscle control. Account for these symptoms.arrow_forwardMuscle hypertrophy training is catalyzed by which of the following? Mechanical tension, high reps, great pump Heavy weight, muscle damage, resistance bands Heavy weight, metabolic stress, post-workout carbs Mechanical tension, muscle damage, metabolic stressarrow_forward
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