# ACSM metabolic equation for stepping exercise

The American College of Sports Medicine (ACSM) has an equation for determining a person's total gross VO2 (the total rate of oxygen consumption during both rest and exercise), expressed in the units ml.kg-1.min-1. In this equation, f = stepping frequency in steps.min-1, and ht = step height in meters.

VO2 = [f × 0.2] + [f × ht × 1.8 × 1.33] + Resting VO2

## Example

For this example, we will use a bench step height of 12 inches at a cadence of 30 steps per minute (step.min-1).

where:
f = 30 steps.min-1
ht = 0.3048 meters (12 inches x 0.0254)
resting VO2 (1 x MET) = 3.5 ml.kg-1.min-1.

VO2 = [f × 0.2] + [f × ht × 1.8 × 1.33] + VO2 resting

VO2 = [30 × 0.2] + [30 × 0.3048 × 1.8 × 1.33] + 3.5

VO2 = 6.0 + 21.9 + 3.5

VO2 = 31.4 ml · kg-1 · min-1

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