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The following graph is simulated (but realistic) data from a VO₂max trial of a human athlete running (no gait changes). Estimate and label the following variables: 1. VO₂max 2. Incremental cost of locomotion 3. Maximum aerobic speed 4. RMR + postural costs

The following graph is simulated (but realistic) data from a VO₂max trial of a human athlete running (no gait changes). Estimate and label the following variables: 1. VO₂max 2. Incremental cost of locomotion 3. Maximum aerobic speed 4. RMR + postural costs

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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The graph depicts simulated (but realistic) data from a VO₂ max trial of a human athlete running without any changes in gait. The x-axis represents speed in miles per hour (MPH), ranging from 2 to 13 MPH. The y-axis represents oxygen consumption (VO₂) in milliliters per kilogram per minute (ml/kg/min), spanning from 0 to 70 ml/kg/min. Key observations: - The graph shows a curve of data points demonstrating the relationship between running speed and oxygen consumption. - As speed increases from 2 to 8 MPH, oxygen consumption rises steadily. - Beyond 8 MPH, the increase in oxygen consumption begins to plateau, indicating the approach towards VO₂ max, or the maximum rate of oxygen consumption. - The graph helps estimate and label these variables: 1. VO₂ max: The peak point on the graph, where the increase in speed does not cause a significant increase in oxygen consumption. 2. Incremental cost of locomotion: The slope of the curve, which indicates the change in oxygen consumption per unit increase in speed. 3. Maximum aerobic speed: The speed at which VO₂ max is reached. 4. RMR (Resting Metabolic Rate) + postural costs: The baseline oxygen consumption at lower speeds.
Transcribed Image Text:The graph depicts simulated (but realistic) data from a VO₂ max trial of a human athlete running without any changes in gait. The x-axis represents speed in miles per hour (MPH), ranging from 2 to 13 MPH. The y-axis represents oxygen consumption (VO₂) in milliliters per kilogram per minute (ml/kg/min), spanning from 0 to 70 ml/kg/min. Key observations: - The graph shows a curve of data points demonstrating the relationship between running speed and oxygen consumption. - As speed increases from 2 to 8 MPH, oxygen consumption rises steadily. - Beyond 8 MPH, the increase in oxygen consumption begins to plateau, indicating the approach towards VO₂ max, or the maximum rate of oxygen consumption. - The graph helps estimate and label these variables: 1. VO₂ max: The peak point on the graph, where the increase in speed does not cause a significant increase in oxygen consumption. 2. Incremental cost of locomotion: The slope of the curve, which indicates the change in oxygen consumption per unit increase in speed. 3. Maximum aerobic speed: The speed at which VO₂ max is reached. 4. RMR (Resting Metabolic Rate) + postural costs: The baseline oxygen consumption at lower speeds.
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