Table 1.

Standardized multivariate linear regression was used to investigate the relationship between three groups of measured variables and the net metabolic cost normalized to body mass.

	β	t-value	p-value
1. Squared Integrated Electromyographic Signals (iEMG2), R2 = 0.96
Incline	0.88	9.34	<0.01
Soleus iEMG2	0.37	4.94	<0.01
Vastus Lateralis iEMG2	−0.20	−2.26	0.05
2. Physical and Physiological Characteristics, R2 = 0.85
Incline	1.78	15.41	<0.01
Walking Velocity	0.05	0.51	0.61
Percent Body Fat	−0.29	−2.04	0.03
Percent Gynoid Fat	−0.29	2.20	0.04
3. Kinematic and Kinetic Variables, R2 = 0.89
Peak Knee Flexion – Stance	0.72	6.23	<0.01
Peak Knee Extension Moment	1.10	10.60	<0.01
Peak Ankle Plantarflexion Moment	−0.36	−3.00	<0.01
Peak Hip Flexion Moment	0.18	1.90	0.07