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. 2015 Dec 2;10(12):e0143585. doi: 10.1371/journal.pone.0143585

Table 2. Least-square mean (SE) of the postural parameters for rANOVA main effects Position, Keyboard, Time, Gender and p-values for the interactions 1 2 .

Wrist Extension Wrist Ulnar Deviation 3 Elbow Flexion Neck Flexion
Left Right Left Right Right -
50th APDF Range 50th APDF Range 50th APDF Range 50th APDF Range 50th APDF Range 50th APDF Range
Position p-value 0.002 0.433 <0.001 0.053 <0.001 0.115 0.011 0.078 <0.001 0.162 0.795 0.024
DESK 32.4(4.0)B 15.0(1.0)A 30.3(3.2)B 12.4(1.0)B 12.7(1.9)A 9.9(0.6)A 11.1(1.8)A 8.2(0.9)A 54.6(3.2)B 10.3(1.5)A 12.2(1.4)A 6.0(0.6)A
LAP 51.2(4.0)A 15.3(1.0)A 50.5(3.2)A 14.8(1.0)A, B -1.4(1.9)B 10.2(0.6)A 4.2(2.0)A, B 10.5(0.9)A 55.4(3.1)B 6.0(1.5)A 12.0(1.6)A 3.5(0.6)B
BED 56.3(3.9)A 13.6(1.0)A 60.6(3.2)A 16.0(1.0)A 6.8(2.0)A 8.3(0.6)A 2.1(2.0)B 11.2(0.9)A 74.7(3.1)A 8.0(1.5)A 13.4(1.7)A 5.2(0.6)A, B
Keyboard p-value 0.004 0.015 0.003 0.640 <0.001 0.031 <0.001 0.758 0.009 0.021 0.752 0.501
STD 44.4(2.4)B 13.8(0.6)B 46.9(1.9)A, B 14.1(0.6)A 7.6(1.3)A 9.2(0.4)A, B 9.9(1.4)A 10.0(0.5)A 61.3(2.1)A, B 7.4(1.0)B 12.1(1.2)A 4.9(0.4)A
WIDE 48.4(2.4)A 15.3(0.6)A 49.2(1.9)A 14.4(0.6)A 7.7(1.3)A 10.1(0.4)A 6.3(1.4)B 9.8(0.5)A 58.8(2.1)B 9.4(1.0)A 13.1(1.2)A 5.1(0.4)A
SPLIT 47.1(2.4)A, B 14.8(0.6)A, B 45.5(1.9)B 14.6(0.6)A 2.7(1.3)B 9.0(0.4)B 1.2(1.4)C 10.1(0.6)A 64.6(2.1) A 7.6(1.0)A, B 12.4(1.2)A 4.7(0.4)A
Time p-value 0.934 <0.001 0.218 <0.001 0.921 <0.001 0.747 <0.001 0.639 <0.001 0.580 0.044
10–25 min 46.7(2.3)A 13.1(0.6)B 47.7(1.9)A 12.9(0.6)B 5.9(1.2)A 8.5(0.4)B 5.9(1.3)A 9.2(0.5)B 61.2(1.9)A 6.8(0.9)B 12.9(1.0)A 4.6(0.4)B
55–60 min 46.6(2.4)A 16.2(0.6)A 46.6(1.9)A 15.8(0.6)A 6.0(1.2)A 10.4(0.4)A 5.6(1.3)A 10.7(0.5)A 61.9(2.0)A 9.4(0.9)A 12.2(1.1)A 5.2(0.4)A
Gender p-value 0.933 0.007 0.493 0.438 0.327 <0.001 <0.001 0.011 0.252 <0.001 0.011 0.031
Female 46.4(3.2)A 16.2(0.8)A 45.9(2.6)A 14.8(0.8)A 7.1(1.6)A 10.8(0.5)A 10.3(1.6)A 11.2(0.7)A 63.7(2.6)A 11.1(1.2)A 10.3(1.3)B 5.6(0.5)A
Male 46.8(3.2)A 13.1(0.8)B 48.4(2.6)A 13.9(0.8)A 4.9(1.6)A 8.1(0.5)B 1.2(1.6)B 8.7(0.7)B 59.5(2.6)A 5.1(1.2)B 14.8(1.3)A 4.1(0.5)B
Interactions
    Position x Keyboard p-value 0.019 0.008 0.075 0.494 <0.001 <0.001 <0.001 0.016 0.054 <0.001 0.383 0.184
    Position x Time p-value 0.830 0.217 0.962 0.085 0.696 0.008 0.998 0.052 0.978 0.123 0.827 <0.001
    Keyboard x Time p-value 0.903 0.473 0.800 0.620 0.988 0.924 0.935 0.251 0.911 0.275 0.928 0.473
    Gender x Time p-value 0.896 0.315 0.711 0.736 0.652 0.897 0.722 0.970 0.474 0.057 0.967 0.906

1 values are in degrees. Repeated measures ANOVA with Participants as a random effect and Position, Keyboard, Time, and Gender as fixed effects.

2 For each main dependent variable, the groupings based on the host hoc analyses are indicated by the superscript and ranked in a descending order such as A > B > C. The same superscript means no significant difference.

3 Negative values represent the wrist deviate toward the radial side.