Table 2 Summary data (Mean (SD)) of muscle activity, force fluctuation, and cardiovascular responses over time across the control and cognitive fatigue conditions

EMG RMS of FCR (% MVC)*

Mean

23.99

23.35

24.73

27.21

30.12

19.09

19.79

18.72

21.39

21.25

SD

9.74

13.24

12.26

12.04

11.22

9.34

10.93

12.47

11.20

12.28

EMG RMS of ECR (% MVC)

Mean

41.33

42.82

40.82

44.34

44.50

33.56

32.11

30.51

33.51

34.44

SD

15.45

18.23

16.63

18.62

18.40

11.60

11.58

12.95

13.77

13.36

EMG mPF of FCR

Mean

130.33

130.51

130.31

128.46

126.24

125.80

133.54

130.85

130.58

129.87

SD

16.72

19.55

19.46

13.18

24.69

34.72

26.85

26.36

26.14

26.50

EMG mPF of ECR

Mean

178.86

177.62

178.03

177.52

178.18

177.84

176.18

178.51

179.26

179.10

SD

11.94

11.36

9.00

9.79

10.95

11.27

11.89

8.94

10.53

11.70

Force fluctuations (%)*

Mean

4.63

3.59

3.41

4.37

4.58

4.20

3.95

3.01

3.35

5.69

SD

2.30

1.39

1.52

2.38

2.66

2.37

2.82

0.96

1.23

4.21

HR (bpm)

Mean

84.49

84.02

82.72

91.45

83.26

83.56

82.72

85.98

84.45

84.19

SD

25.21

20.00

16.42

19.31

14.80

22.93

18.75

28.02

27.35

21.95

HRV LF/HF

Mean

0.42

0.42

0.42

0.42

0.42

0.42

0.42

0.42

0.42

0.42

SD

0.003

0.002

0.002

0.006

0.002

0.002

0.005

0.006

0.003

0.003