Table 3.
The effect (unstandardized regression coefficients (P value)) of walking speed, age, and body weight on metabolic cost and accelerometer counts during treadmill walking at 2, 3, 4, 5, and 6 km/h.
| METs | V O2 (L/min) | V O2 (mL/kg/min) | Counts/min* | |
|---|---|---|---|---|
| Walking speed (km/h) (1st order) | −0.002 (.971) | 0.004 (.852) | −0.044 (.770) | 1006.662 (<.001) |
| Walking speed (km/h) (2nd order) | 0.136 (<.001) | 0.049 (<.001) | 0.415 (<.001) | — |
| Age | 0.025 (.041) | 0.007 (.031) | 0.060 (.015) | −27.439 (.027) |
| Body weight | 0.003 (.582) | 0.013 (<.001) | 0.004 (.747) | 2.437 (.672) |
*The second order term of walking speed was omitted due to a nonsignificant association with the dependent variable.