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Table 4 Results of the mixed analysis of variance (ANOVA) for the effect of sex and day on 10th percentile or static muscle activity

From: Sex differences in muscle activity and motor variability in response to a non-fatiguing repetitive screwing task

Parameter

Muscle

Outcome

Men

Women

Mixed ANOVA

N

Median (IQR)

N

Median (IQR)

Day

Sex

Day × sex

Day 1

Day 2

Day 3

Day 1

Day 2

Day 3

F value (df1, df2)

p value

F value (df1, df2)

p value

F value (df1, df2)

p value

RMS10

M. extensor digitorum

RMS10.DIFF [%RVE]

27

− 0.93

(4.69)

− 1.59

(5.35)

− 0.30

(4.39)

29

− 0.92

(6.49)

0.22

(4.57)

0.00

(4.13)

60.053

(2, 108)

0.000*

4.028

(1, 54)

0.050*

0.162

(2, 108)

0.851

RMS10.MEAN [%RVE]

27

14.75

(12.44)

10.51

(7.90)

10.92

(10.39)

29

16.48

(10.70)

13.98

(9.53)

13.25

(11.08)

14.045

(2, 108)

0.000*

0.916

(1, 54)

0.343

0.776

(2, 108)

0.463

M. flexor carpi radialis

RMS10.DIFF [%RVE]

27

− 0.44

(1.51)

− 0.12

(1.68)

0.00

(1.25)

25

− 0.57

(2.37)

1.29

(3.25)

− 0.29

(1.93)

115.791

(2, 100)

0.000*

0.252

(1, 50)

0.618

0.180

(2, 100)

0.836

RMS10.MEAN [%RVE]

27

4.30

(6.11)

4.18

(4.21)

4.50

(2.76)

25

6.05

(4.74)

7.00

(5.49)

5.88

(3.89)

1.023

(2, 100)

0.363

5.921

(1, 50)

0.019*

2.590

(2, 100)

0.080

M. biceps brachii

RMS10.DIFF [%RVE]

26

0.00

(0.76)

0.04

(0.70)

0.21

(1.14)

29

0.36

(1.43)

0.12

(1.17)

0.32

(1.33)

36.615

(2, 106)

0.000*

0.347

(1, 53)

0.559

1.038

(2, 106)

0.358

RMS10.MEAN [%RVE]

26

4.93

(4.50)

4.91

(3.90)

5.48

(7.64)

29

7.18

(5.08)

6.97

(5.56)

7.54

(8.23)

1.071

(2, 106)

0.346

6.070

(1, 53)

0.017*

0.559

(2, 106)

0.574

M. triceps brachii

RMS10.DIFF [%RVE]

25

0.00

(0.81)

0.00

(0.35)

0.00

(0.64)

30

0.00

(1.08)

0.00

(0.83)

0.24

(0.66)

55.332

(2, 106)

0.000*

0.876

(1, 53)

0.354

0.263

(2, 106)

0.769

RMS10.MEAN [%RVE]

25

2.71

(2.07)

2.74

(2.63)

2.57

(1.76)

30

3.40

(3.21)

3.33

(2.80)

3.25

(1.87)

1.237

(2, 106)

0.294

4.495

(1, 53)

0.039*

0.341

(2, 106)

0.712

  1. *Significant p value, α = 0.05. N number of subjects in statistical model, IQR interquartile range, df1 degrees of freedom for the number of comparisons within subjects, df2 degrees of freedom for the error term, RMS10 10th percentile or static muscle activity, DIFF difference value between the start (rows 2 and 3) and end (rows 11 and 12) value, RVE reference voluntary electrical activity
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Biology of Sex Differences

ISSN: 2042-6410

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