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Which of the following is the best explanation of the relationship shown in the graphs below? Glycogen Levels in Calf Muscle during Treadmill Running Reported Effort during Treadmill Running normal extreme 75%- heavy- 50%- moderate- 25% light- 0 2 3 0 2 3 time (hours) time (hours) At extreme levels of effort, glycogen levels are normal At light levels of effort, glycogen levels are at 25% At light levels of effort, glycogen levels are at normal At extreme levels of effort, glycogen levels are at 75% muscle glycogen level O effort level

Which of the following is the best explanation of the relationship shown in the graphs below? Glycogen Levels in Calf Muscle during Treadmill Running Reported Effort during Treadmill Running normal extreme 75%- heavy- 50%- moderate- 25% light- 0 2 3 0 2 3 time (hours) time (hours) At extreme levels of effort, glycogen levels are normal At light levels of effort, glycogen levels are at 25% At light levels of effort, glycogen levels are at normal At extreme levels of effort, glycogen levels are at 75% muscle glycogen level O effort level

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Exercise Physiology: Treadmill Running and Glycogen Levels** ### Understanding the Relationship Between Effort and Glycogen Levels #### Question: Which of the following is the best explanation of the relationship shown in the graphs below? #### Graphs: 1. **Glycogen Levels in Calf Muscle during Treadmill Running** - **Y-Axis (Vertical):** Muscle glycogen level. - Levels range from 0 to 100% (indicated as normal, 75%, 50%, 25%). - **X-Axis (Horizontal):** Time (hours). - Time ranges from 0 to 3 hours. - **Description:** The graph displays a downward curve starting at normal glycogen levels (100%) at time zero and dropping sharply to around 5% after 3 hours. 2. **Reported Effort during Treadmill Running** - **Y-Axis (Vertical):** Effort level. - Levels range from light to extreme, with intermediate levels heavy and moderate. - **X-Axis (Horizontal):** Time (hours). - Time ranges from 0 to 3 hours. - **Description:** The graph shows a slight increase in reported effort from light to moderate within the first hour, remaining steady until the second hour, after which it rises sharply towards the extreme effort level by the third hour. #### Answer Choices: - At extreme levels of effort, glycogen levels are normal - At light levels of effort, glycogen levels are at 25% - At light levels of effort, glycogen levels are at normal - At extreme levels of effort, glycogen levels are at 75% **Explanation:** From the data illustrated: 1. At the start (time = 0 hours), muscle glycogen levels are normal (100%), and the effort level is light. 2. As time progresses (up to 3 hours), muscle glycogen levels decrease rapidly, reaching near depletion levels (around 5%). 3. Concurrently, reported effort level starts as light, rises slightly to moderate, remains steady, and then increases sharply, reaching extreme levels by the end of 3 hours. The data implies that as glycogen levels decrease due to prolonged running, the perceived effort significantly increases. ### Conclusion: The best explanation of the relationship would be the one that accurately represents this inverse relation: - At extreme levels of effort, glycogen levels
Transcribed Image Text:**Exercise Physiology: Treadmill Running and Glycogen Levels** ### Understanding the Relationship Between Effort and Glycogen Levels #### Question: Which of the following is the best explanation of the relationship shown in the graphs below? #### Graphs: 1. **Glycogen Levels in Calf Muscle during Treadmill Running** - **Y-Axis (Vertical):** Muscle glycogen level. - Levels range from 0 to 100% (indicated as normal, 75%, 50%, 25%). - **X-Axis (Horizontal):** Time (hours). - Time ranges from 0 to 3 hours. - **Description:** The graph displays a downward curve starting at normal glycogen levels (100%) at time zero and dropping sharply to around 5% after 3 hours. 2. **Reported Effort during Treadmill Running** - **Y-Axis (Vertical):** Effort level. - Levels range from light to extreme, with intermediate levels heavy and moderate. - **X-Axis (Horizontal):** Time (hours). - Time ranges from 0 to 3 hours. - **Description:** The graph shows a slight increase in reported effort from light to moderate within the first hour, remaining steady until the second hour, after which it rises sharply towards the extreme effort level by the third hour. #### Answer Choices: - At extreme levels of effort, glycogen levels are normal - At light levels of effort, glycogen levels are at 25% - At light levels of effort, glycogen levels are at normal - At extreme levels of effort, glycogen levels are at 75% **Explanation:** From the data illustrated: 1. At the start (time = 0 hours), muscle glycogen levels are normal (100%), and the effort level is light. 2. As time progresses (up to 3 hours), muscle glycogen levels decrease rapidly, reaching near depletion levels (around 5%). 3. Concurrently, reported effort level starts as light, rises slightly to moderate, remains steady, and then increases sharply, reaching extreme levels by the end of 3 hours. The data implies that as glycogen levels decrease due to prolonged running, the perceived effort significantly increases. ### Conclusion: The best explanation of the relationship would be the one that accurately represents this inverse relation: - At extreme levels of effort, glycogen levels
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