Skip to main content

Table 3 Factor loading values and the proportion of the variance explained by principal component analysis

From: Principal component analysis for ataxic gait using a triaxial accelerometer

Parameter

Patients

Controls

PC1

PC2

PC1

PC2

PC3

PC4

Velocity

0.811

0.518

0.872

0.318

0.008

0.200

Cadence

0.697

0.303

0.172

0.901

0.176

0.040

Step length

0.622

0.480

0.847

−0.345

−0.132

0.184

Step regularity in AP

−0.058

0.932

0.042

−0.318

0.144

0.826

Step regularity in VT

0.159

0.897

0.071

0.295

0.003

0.872

Step symmetry in AP

−0.040

0.762

0.086

−0.029

0.903

0.027

Step symmetry in VT

0.101

0.778

−0.095

0.220

0.782

0.138

RMS in AP

0.930

−0.057

0.859

0.279

0.115

−0.045

RMS in ML

0.774

−0.434

0.461

−0.01

0.386

−0.283

RMS in VT

0.916

−0.146

0.674

0.568

−0.034

−0.114

Variance explained (%)

38.7

36.6

29.4

16.7

16.6

16.3

  1. Factor loading values greater than 0.4 as the absolute value are in bold
  2. Abbreviations: AP anterior-posterior, ML medio-lateral, PC principal component, RMS root mean square, VT vertical
Back to article page

Journal of NeuroEngineering and Rehabilitation

ISSN: 1743-0003

Contact us