Your client has been exercising on a motorized treadmill, and you are interested in calculating oxygen consumption (VO2 in ml/kg/min), MET level, and energy expenditure (kcal/min). Session #1: Walking at 2.5 mph and 10% grade   Calculate the following:

Lifetime Physical Fitness & Wellness
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Author:HOEGER
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Chapter10: Preventing Cardiovascular Disease
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Your client has been exercising on a motorized treadmill, and you are interested in calculating oxygen consumption (VO2 in ml/kg/min), MET level, and energy expenditure (kcal/min).

Session #1: Walking at 2.5 mph and 10% grade

 

Calculate the following:

 

Relative VO2 (mL/kg/min)

 

METs

 

Kcal/min

 

Metabolic Calculations (ACSM Equations)

Walking (1.9 to 3.7 mph)                                                   

gross VO2 (ml · kg-1 · min-1) = [S × 0.1] + [S × G × 1.8] + 3.5

 

1 MET = 3.5 ml/kg/min

Expert Solution
Step 1

Relative VO2=rate of Oxygen uptake in mil/kg/min.Its used to compare VO2 between individuals of different body size.

Step 2

Calculation of VO2

First step:Convert speed in mph to m.min

So 2.5*26.8224=67.06 m/min

Second step:Calculate horizontal components:H=speed *0.1=67.06*0.1=6.706ml.kg.min

Third step :calculate vertical component.V=grade(decimal)×speed×1.8=0.10×67.06×1.8=12.07 ml.kg.min

Calculate total VO2 by adding H,V,R(Resting components)=6.706+12.07+2.5=21.27ml.kg.min

So VO2 is 21.27ml.kg.min

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