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Table 1 Regression analysis results

From: Reducing the metabolic cost of walking with an ankle exoskeleton: interaction between actuation timing and power

 

Formula

R2

P

(1)

ΔE = − 0.096 + 9.2 ⋅ Pavg − 0.49 ⋅ Ton ⋅ Pavg + 0.0055 ⋅ Ton 2 ⋅ Pavg

0.833

0.01

(2)

ΔE = 0.0088 + 9.1 ⋅ Pavg + 5 ⋅ Pavg 2 − 0.64 ⋅ Ton ⋅ Pavg + 0.0077 ⋅ Ton 2 ⋅ Pavg

0.990

<0.001

(3)

ΔE = − 10 + 10 ⋅ exp (0.89 ⋅ Pavg) Pavg − 0.62 ⋅ Ton ⋅ Pavg + 0.0075 ⋅ Ton 2 ⋅ Pavg

0.988

<0.001

  1. Results of three different regressions that were used as potential candidates to result in a good fit for the effect of actuation timing and exoskeleton power on metabolic cost of exoskeleton walking with the resulting R2 and P-values