Table 2.

Multivariable regression model testing the association of the energy cost of overground walking with anthropometric measures.

Model: Obs = 62; F = 12.75; Prob > F < 0.001; adjusted R 2 = 0.278.
Cost of locomotion to kinetic energy ratio (kg−1 sec−1)	β ± SE (β)	P	Standardized β
Lower limb length (cm)	−3.72 ∗ 10−3 ± 0.74 ∗ 10−3	<0.001	−0.78
Lower limb length to height ratio (%)	6.61 ∗ 10−3 ± 2.14 ∗ 10−3	0.003	0.48

β = β-coefficient (slope); SE (β): standard error of the β-coefficient; standardized β = β-coefficient according to the Z-score calculated after transforming all variables as having a mean of 0 and an SD of 1. The α-constant (intercept) was 64.89 ∗ 10⁻³.

The initial model also included age and sex that were removed by backward selection (P = 0.170 and 0.188, resp.).