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Table 4 Rotated component matrix from PCA using Varimax rotation and including % variance explained for the 18 positions. Bolded component coefficients denote component loadings

From: Health-related consequences of the type and utilization rates of electronic devices by college students

 

Reclined

Lean/ Slouch

Wrists - Ulnar deviation

Desk posture

Wrists - Radial deviation

Wrists - Flexion

% Variance explained

22.74

9.70

9.19

8.05

6.54

5.54

Bed laptop-back

0.75

0.14

0.07

0.05

−0.01

0.05

Bed laptop-front

0.69

0.11

0.10

0.21

−0.08

−0.12

Chair ottoman-laptop

0.66

0.16

0.07

0.04

0.00

0.09

Floor/bed recline tablet

0.51

0.36

0.25

− 0.28

0.13

0.22

Elbow desk tablet

0.17

0.78

−0.04

0.07

0.03

−0.03

Elbow desk laptop

0.04

0.70

0.21

−0.31

0.11

0.06

Desk phone, tablet

0.08

0.60

0.23

0.07

−0.13

0.05

Chair/table phone

0.25

0.53

0.03

0.17

0.05

0.00

Mouse-Ulnar deviation

0.02

0.19

0.69

0.20

−0.01

−0.07

Keyboard-Ulnar deviation

0.33

−0.02

0.66

−0.02

−0.15

0.10

Desk Sit

−0.13

−0.10

0.24

0.75

0.17

0.21

Desk Stand

0.43

0.01

0.15

0.61

0.03

−0.01

Chair sit

0.26

0.38

−0.03

0.58

−0.08

−0.03

Keyboard Hands-No Dev

0.02

0.16

0.13

0.18

0.85

0.20

Keyboard-Radial deviation

0.08

0.20

0.42

0.12

−0.69

0.20

Keyboard Hands-No Ext

0.11

0.09

−0.05

0.14

0.09

0.91

Keyboard-Wrist Extension

0.11

0.21

0.64

0.13

0.19

−0.48