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Table 1 Comparison of reach kinematics between environments

From: Planning and adjustments for the control of reach extent in a virtual environment

 

Direction

N

Peak velocity (cm/sec)

  

Peak acceleration (cm/sec2)

  

Movement Time (sec)

  

VE

RWE

p-value

VE

RWE

p-value

VE

RWE

p-value

S2

+45°

60

191.75 ± 45.89

149.61 ± 41.01

<0.001*

3935.09 ± 905.79

2528.42 ± 640.39

<0.001*

0.198 ± 0.055

0.235 ± 0.047

<0.001*

 

−45°

59

131.08 ± 34.10

105.95 ± 35.67

<0.001*

2424.23 ± 834.51

1475.10 ± 408.14

<0.001*

0.315 ± 0.078

0.355 ± 0.058

<0.001*

S3

+45°

60

150.37 ± 34.15

184.65 ± 42.63

<0.001*

2181.49 ± 521.17

3733.70 ± 635.66

<0.001*

0.276 ± 0.080

0.230 ± 0.074

<0.001*

 

−45°

60

110.46 ± 27.36

140.06 ± 41.57

<0.001*

1762.22 ± 421.91

2307.15 ± 538.38

<0.001*

0.378 ± 0.053

0.276 ± 0.042

<0.001*

S4

+45°

60

137.46 ± 32.38

138.96 ± 34.80

0.602

1950.38 ± 401.73

2260.18 ± 534.05

<0.001*

0.275 ± 0.054

0.245 ± 0.067

<0.001*

 

−45°

60

100.54 ± 26.59

89.44 ± 26.83

<0.001*

1136.05 ± 213.28

1188.34 ± 249.58

0.115

0.386 ± 0.052

0.364 ± 0.053

<0.001*

S5

+45°

60

176.24 ± 50.23

176.46 ± 50.83

0.961

2460.29 ± 704.88

2591.62 ± 745.17

0.169

0.267 ± 0.075

0.218 ± 0.044

<0.001*

 

−45°

58

109.49 ± 29.27

123.33 ± 41.66

<0.001*

1306.79 ± 363.51

1439.23 ± 481.84

0.031*

0.366 ± 0.066

0.330 ± 0.047

<0.001*

S6

+45°

60

193.62 ± 54.88

199.54 ± 56.15

0.125

3278.70 ± 798.53

3426.06 ± 798.53

0.161

0.199 ± 0.036

0.209 ± 0.056

0.143

 

−45°

60

123.72 ± 35.52

138.26 ± 40.74

<0.001*

1846.80 ± 543.41

1933.76 ± 476.45

0.145

0.291 ± 0.057

0.284 ± 0.057

0.385

Group

+45°

300

169.89 ± 49.49

169.84 ± 50.64

0.984

2761.19 ± 1009.45

2908.00 ± 862.85

0.033*

0.235 ± 0.072

0.227 ± 0.060

0.089

 

−45°

297

115.04 ± 32.47

119.53 ± 42.21

0.009*

1695.38 ± 685.39

1670.96 ± 595.12

0.570

0.339 ± 0.072

0.323 ± 0.063

<0.001*

  1. N = Number of reach trials; VE = Virtual Environment; RWE = Real-World Environment.
  2. * Significant differences.