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Table 4 Functional grasps obtained with configurations.

From: Selective neural electrical stimulation restores hand and forearm movements in individuals with complete tetraplegia

Median nerve - functional movements

Subject

Key grip

Power grip

Hook grip

P5

TT (C3)

-

TLR(B2;B3;B4) TL (B1*;B2)

-

*Fingers r = 0.72, Thumb r = 0.41, I = 1400 μA

Not observed

Not observed

P6

TT (A4)

-

-

-

Fingers r = 0.35, Thumb r = 1, I = 960 μA

-

STR (B1*)

TLR (B4*)

Ring* BP (BA*)

*MRC < 4

-

TTR (B1;B4)

TLR (B1) TL (B3*)

-

*Fingers r = 0.18, I = 720 μA

P7

TT (A1;A4;B4)

TTR (B1*;B3)

TLR (B1;B3) TL (B1;B3)

Ring BP (BC;AB;BA)

*Fingers r = 0.68, Thumb r = 0.38, I = 600 μA

-

-

-

BP (AC)

MRC < 4

TT(B3)

-

-

-

MRC < 4

P8

Not observed

TT (A2*,B2*)

TTR (B2*) STR (B2*)

TLR (B2*;B3*)

-

*MRC < 4

-

-

TLR (B4)

-

MRC < 2

  1. *Identifies the highest MRC obtained, and for Key / Hook grip the recruitment of the targeted muscle with the intensity of the stimulation when clean EMG data are available