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Table 4 Sign criteria considered

From: Kinematic synergies of hand grasps: a comprehensive study on a large publicly available dataset

PIP(2–5)_F, IP1_F, MCP(1–5)_F

Flexion + / Extension –

WRIST_F

Flexion + / Extension –

WRIST_A

Radial deviation + / Cubital deviation -

MCP(3–4, 4–5)_A

Fingers separated + / Fingers together -

CMC5_F

Flexion +/Extension -

CMC1_F

Flexion +/Extension – (See Fig. 4)

CMC1_A

Abduction +/Adduction - (See Fig. 4)