Skip to main content

Table 12 Results of the mixed analysis of variance (ANOVA) for the effect of sex and day on relative cycle-to-cycle variability of 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

Statistical analysis (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

RMSCV

M. extensor digitorum

RMSCV.START [1]

27

0.51

(0.10)

0.50

(0.10)

0.54

(0.11)

29

0.45

(0.08)

0.47

(0.11)

0.46

(0.13)

5.180

(2, 108)

0.007*

14.750

(1, 54)

0.000*

0.226

(2, 108)

0.798

RMSCV.DIFF [1]

27

0.00

(0.09)

0.01

(0.07)

0.00

(0.08)

29

0.01

(0.06)

0.01

(0.04)

− 0.01

(0.08)

24.453

(2, 108)

0.000*

0.985

(1, 54)

0.325

0.028

(2, 108)

0.972

RMSCV.MEAN [1]

27

0.53

(0.09)

0.53

(0.08)

0.54

(0.10)

29

0.45

(0.07)

0.46

(0.11)

0.45

(0.10)

5.231

(2, 108)

0.007*

19.067

(1, 54)

0.000*

0.125

(2, 108)

0.882

M. flexor carpi radialis

RMSCV.START [1]

27

0.72

(0.22)

0.73

(0.19)

0.75

(0.26)

25

0.67

(0.17)

0.70

(0.16)

0.70

(0.19)

2.082

(2, 100)

0.130

2.704

(1, 50)

0.106

0.025

(2, 100)

0.975

RMSCV.DIFF [1]

27

0.01

(0.07)

0.00

(0.07)

− 0.01

(0.12)

25

− 0.01

(0.09)

− 0.01

(0.06)

− 0.02

(0.07)

95.381

(2, 100)

0.000*

0.141

(1, 50)

0.709

0.095

(2, 100)

0.910

RMSCV.MEAN [1]

27

0.74

(0.21)

0.75

(0.20)

0.79

(0.23)

25

0.69

(0.16)

0.72

(0.15)

0.70

(0.19)

0.358

(2, 100)

0.700

3.455

(1, 50)

0.069

0.299

(2, 100)

0.742

M. biceps brachii

RMSCV.START [1]

26

1.01

(0.15)

1.04

(0.15)

1.05

(0.15)

29

0.84

(0.12)

0.89

(0.14)

0.90

(0.12)

3.882

(2, 106)

0.024*

7.648

(1, 53)

0.008*

0.875

(2, 106)

0.420

RMSCV.DIFF [1]

26

− 0.02

(0.06)

− 0.03

(0.09)

− 0.01

(0.07)

29

0.01

(0.05)

− 0.03

(0.03)

− 0.03

(0.05)

114.189

(2, 106)

0.000*

0.493

(1, 53)

0.486

0.290

(2, 106)

0.748

RMSCV.MEAN [1]

26

1.01

(0.17)

1.01

(0.12)

1.03

(0.19)

29

0.86

(0.15)

0.88

(0.11)

0.89

(0.11)

1.015

(2, 106)

0.366

7.583

(1, 53)

0.008*

0.929

(2, 106)

0.398

M. triceps brachii

RMSCV.START [1]

25

0.96

(0.37)

1.04

(0.42)

0.99

(0.33)

30

0.76

(0.27)

0.75

(0.32)

0.81

(0.22)

0.592

(2, 106)

0.555

6.455

(1, 53)

0.014*

0.341

(2, 106)

0.712

RMSCV.DIFF [1]

25

0.03

(0.18)

− 0.02

(0.16)

0.01

(0.19)

30

− 0.01

(0.14)

− 0.01

(0.09)

− 0.01

(0.08)

7.918

(2, 106)

0.001*

2.389

(1, 53)

0.128

0.537

(2, 106)

0.586

RMSCV.MEAN [1]

25

0.99

(0.46)

1.03

(0.45)

1.01

(0.38)

30

0.79

(0.25)

0.79

(0.36)

0.82

(0.23)

0.425

(2, 106)

0.655

7.797

(1, 53)

0.007*

0.178

(2, 106)

0.837

  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, RMSCV relative cycle-to-cycle variability of muscle activity, START initial value, DIFF difference value between the start (rows 2 and 3) and end (rows 11 and 12) value
Back to article page

Biology of Sex Differences

ISSN: 2042-6410

Contact us