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Table 4 Comparison of parameters extracted from inertial sensors in PD patients and healthy controls (HC)

From: A new instrumented method for the evaluation of gait initiation and step climbing based on inertial sensors: a pilot application in Parkinson’s disease

  

Gait initiation

Step climbing

  

HC

PD

p-value

HC

PD

p-value

Imbalance

ML

0.19 ± 0.08

0.08 ± 0.12

0.02*

0.26 ± 0.13

0.09 ± 0.15

< 0.01*

Δt

0.40 ± 0.17

0.30 ± 0.20

0.70

0.47 ± 0.18

0.38 ± 0.14

0.20

Unloading

ML

−0.65 ± 0.37

- 0.42 ± 0.32

0.14

−0.76 ± 0.49

- 0.56 ± 0.42

0.03*

Δt

0.30 ± 0.06

0.37 ± 0.15

0.17

0.30 ± 0.05

0.32 ± 0.17

0.56

APA

ML

−0.53 ± 0.24

- 0.57 ± 0.37

0.45

−0.57 ± 0.37

- 0.52 ± 0.46

0.41

Δt

0.70 ± 0.15

0.85 ± 0.66

0.63

0.77 ± 0.20

0.84 ± 0.57

0.31

Swing

Δt

0.49 ± 0.07

0.42 ± 0.07

0.03*

0.65 ± 0.10

0.62 ± 0.13

0.30

Step

Δt

1.23 ± 0.11

1.28 ± 0.37

0.70

1.33 ± 0.10

1.36 ± 0.25

0.75

  1. Trunk acceleration in the medio-lateral direction (ML; mean ± SD [m/s2]) and durations (Δt; mean ± SD [s]) of the different phases and the complete test in the two different transitional tasks.
  2. Significant differences (p-value < 0.05) are marked with*.