Table 5 Correlations between reaction time and the time-dependent force structure

Approximate entropy—15% MVC

 Control

  Pearson correlation

− 0.438*

− 0.202

− 0.218

  p-value (2-tailed)

0.001

0.14

0.11

  N

56

55

55

 ASD

  Pearson correlation

− 0.448*

− 0.125

− 0.167

  p-value (2-tailed)

< .001

0.359

0.22

  N

68

56

56

Approximate entropy—45% MVC

 Control

  Pearson correlation

− 0.465*

− 0.283

− 0.474*

  p-value (2-tailed)

0.001

0.04

< .001

  N

52

53

53

 ASD

  Pearson correlation

− 0.397*

− 0.19

− 0.174

  p-value (2-tailed)

0.001

0.165

0.203

  N

65

55

55

Approximate entropy—85% MVC

 Control

  Pearson correlation

− 0.470*

− 0.243

− 0.262

  p-value (2-tailed)

0.001

0.083

0.061

  N

51

52

52

 ASD

  Pearson correlation

− 0.305

− 0.133

− 0.151

  p-value (2-tailed)

0.015

0.348

0.284

  N

63

52

52

Approximate ENTROPY—0.06 degrees

 Control

  Pearson correlation

− 0.292

− 0.204

− 0.015

  p-value (2-tailed)

0.064

0.214

0.93

  N

41

39

39

 ASD

  Pearson correlation

− 0.199

− 0.155

− 0.316

  p-value (2-tailed)

0.276

0.396

0.078

  N

32

32

32

Approximate entropy—0.62 degrees

 Control

  Pearson correlation

− 0.223

− 0.225

− 0.02

  p-value (2-tailed)

0.155

0.162

0.905

  N

42

40

40

 ASD

  Pearson correlation

− 0.143

− 0.097

− 0.25

  p-value (2-tailed)

0.398

0.584

0.154

  N

37

34

34

Approximate entropy—21.13 degrees

 Control

  Pearson correlation

− 0.224

− 0.286

− 0.084

  p-value (2-tailed)

0.153

0.073

0.604

  N

42

40

40

 ASD

  Pearson correlation

− 0.21

0.02

0.15

  p-value (2-tailed)

0.241

0.916

0.429

  N

33

30

30