Table 4 Normalized mean values of maximum EMG activation (mean ± sd) in [%MVC]

Tripod pinch

3.49 (±2.28)

6.09 (±1.86)

3.22 (±2.38)

1.22 (±0.61)

6.60 (±7.04)

3.22 (±1.69)

3.97

Extension grip

4.11 (±2.25)

4.38 (±1.94)

3.69 (±2.30)

1.57 (±0.58)

3.19 (±1.85)

1.98 (±0.93)

3.15

Spherical grip

5.06 (±1.78)

5.71 (±2.73)

2.26 (±0.74)

1.49 (±0.49)

6.80 (±5.58)

2.57 (±0.76)

3.98

Force grip

4.68 (±1.58)

5.13 (±1.53)

3.00 (±1.51)

1.45 (±0.43)

6.35 (±3.71)

3.15 (±0.61)

3.96

Lateral pinch

2.13 (±0.51)

4.53 (±4.09)

4.67 (±2.73)

0.98 (±0.25)

3.66 (±1.19)

2.39 (±0.80)

3.06

Terminal pinch

2.18 (±0.89)

6.48 (±2.80)

3.23 (±2.24)

1.04 (±0.44)

3.10 (±1.01)

4.09 (±2,93)

3.35

MEAN

3.60

5.39

3.34

1.29

4.95

2.90