Subjects: men and women from 18 to 39 years of age
Parameters:
(1) gender
(2) stride rate (number of steps per minute)
number of METs used by a male while walking =
= (0.105 * (stride rate)) - 7.065
oxygen consumption for a male while walking in mL per kg per minute =
= (0.3675 * (stride rate)) - 24.728
number of METs used by a female while walking =
= (0.110 * (stride rate)) - 8.805
oxygen consumption for a male while walking in mL per kg per minute =
= (0.385 * (stride rate)) - 30.818
where:
• 1 MET = 3.5 mL oxygen per kg per minute = oxygen uptake at rest
Moderate exercise corresponds to 3 METs. For a young adult this is roughly 100 steps per minute (96 steps per minute for males, 107 steps per minute for females).
Limitations:
• The equations are probably accurate only over a relatively narrow range. For example, the MET generated by a man walking 67.5 steps per minute is 0 according to the equation.
