Table 3 Mean values of muscle activity (mean ± sd) in [μV]

Tripod pinch

27.33 (±9.83)

89.84 (±48.31)

33.57 (±18.53)

19.45 (±12.91)

24.17 (±16.53)

31.16 (±11.83)

37.58

Extension grip

36.25 (±21.29)

69.17 (±45.95)

32.10 (±10.64)

22.76 (±8.71)

15.51 (±5.13)

22.51 (±7.35)

33.05

Spherical grip

47.04 (±17.78)

93.75 (±70.33)

24.60 (±11.89)

21.70 (±11.60)

27.09 (±14.21)

27.04 (±11.01)

40.20

Force grip

41.43 (±11.74)

80.74 (±47.08)

32.26 (±19.27)

19.96 (±3.81)

28.83 (±11.03)

36.62 (±14.43)

39.97

Lateral grip

19.43 (±7.15)

60.55 (±47.81)

46.06 (±25.96)

14.42 (±2.15)

18.90 (±2.68)

29.43 (±10.92)

31.46

Terminal pinch

18.59 (±5.79)

97.75 (±57.34)

30.55 (±25.37)

14.39 (±3.19)

16.08 (±4.89)

50.35 (±27.05)

37.95

MEAN

31.67

81.97

33.19

18.78

21.76

32.85