The oxygen uptake during stepping exercise can be calculated based on the stepping rate and the nature of the stepping done.
Conditions: The equation is appropriate for power outputs between 300 and 1200 kg•m/min.
oxygen uptake in mL per kg per min =
= (horizontal oxygen uptake) + (vertical oxygen uptake)
horizontal oxygen uptake =
= 0.35 * (steps per minute)
vertical oxygen uptake =
= (step height in meters) * (steps per minute) * (vertical factor)
where:
• vertical factor = 0.6 if only stepping down; 1.8 if only stepping up; 2.4 if stepping up and down
• 0.35 is the regression constant for converting steps per minute to mL per kg per minute.
• The resting oxygen uptake is included with the horizontal and vertical components of the equation.
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Specialty: Surgery, orthopedic
