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. Author manuscript; available in PMC: 2010 Aug 25.
Published in final edited form as: J Neural Eng. 2009 Jul 15;6(4):046010. doi: 10.1088/1741-2560/6/4/046010

Table 1.

Nerve-Cuff Selectivity

Nerve-Cuff Contact Maximum Selective Pulse Width (μs) Muscle Selected % Activation of Selected Muscle at Maximum Selective Pulse Width Maximum Selective Twitch Knee Extension Moment (Nm) Twitch/Tetany Scaling Factor Estimated Selective Tetanic Knee Extension Moment (Nm)
R1 48 VI 94.2% 8.16 2.53 20.64
R2 Not Selectivea Not Selectivea Not Selectivea Not Selectivea 3.76 Not Selectivea
R3 80 VI 34.2% 6.77 3.48 23.56
R4 112 VI 76.3% 7.65 4.57 34.96
L1 Not Selectivea Not Selectivea Not Selectivea Not Selectivea 2.61 Not Selectivea
L2 223 VM 54.9% 5.45 2.76 15.04
L3 143 VI 20.8% 4.44 4.33 19.23
L4 64 VI 83.1% 3.87 3.99 15.44
a

“Not selective” refers to contacts that did not recruit any one muscle above threshold without recruiting at least one other muscle above threshold.