Table 1 Sample entropy (SampEn) and coefficient of variation (CV) during contractions at intensities equivalent to end-test torque (ETT), 50%, 75%, 150% and 175% ETT.

From: Force fluctuations regulation and the role of neurophysiological mechanisms throughout different isometric contraction intensities

 

Torque (N.m)

Torque (%MVIC)

SampEn

CV

Condition

Mean ± SD

95% CI

Mean ± SD

95% CI

50% ETT

56.4 ± 13.3

17.9 ± 4.2

1.02 ± 0.21a, b,c

[0.93,1.10]

4.07 ± 0.63

[3.81,4.83]

75% ETT

84.6 ± 19.9

26.9 ± 6.3

1.11 ± 0.21a, b

[1.03,1.20]

4.18 ± 2.61

[3.11,5.26]

ETT

112.9 ± 26.5

35.8 ± 8.5

1.29 ± 0.17

[1.22,1.36]

3.90 ± 0.91

[3.51,4.29]

150% ETT

169.3 ± 39.8

53.7 ± 12.7

1.29 ± 0.25

[1.18,1.39]

3.80 ± 0.61

[3.54,4.07]

175% ETT

197.5 ± 46.4

62.7 ± 14.8

1.23 ± 0.31

[1.09,1.36]

4.18 ± 2.38

[3.17,5.19]

  1. SampEn sample entropy, CV coefficient of variation, SD standard deviation, CI confidence interval.
  2. Symbols indicate a statistically significant difference compared to the following aETT, b150% ETT and c175% ETT.
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