Table 2

Stimulation parameters

SubjectTime pointLead insertionPreoperative
μsmAμsmA
AMinimum detected1510**
Optimal1510**
Maximum tolerated1513**
Contractions1512**
Final current (mA) and pulse duration (μs) settings11151822
BMinimum detected158158
Optimal158158
Maximum tolerated15141514
Contractions
Final current (mA) and pulse duration (μs) settings7151617
CMinimum detected1581510
Optimal15101514
Maximum tolerated15121518
Contractions15101514
Final current (mA) and pulse duration (μs) settings10152430
DSubject withdrew
EMinimum detected20201513
Optimal26201514
Maximum tolerated35201515
Contractions
Final current (mA) and pulse duration (μs) settingsSubject withdrew
FMinimum detected153155
Optimal1518158
Maximum tolerated15201510
Contractions15201511
Final current (mA) and pulse duration (μs) settingsSubject withdrew
GMinimum detected15101514
Optimal15151517
Maximum tolerated15181518
Contractions15161517
Final current (mA) and pulse duration (μs) settings18151718
HMinimum detected15141517
Optimal25203520
Maximum tolerated30203520
Contractions18201720
Final current (mA) and pulse duration (μs) settings20173040
IMinimum detected153153
Optimal157155
Maximum tolerated158157
Contractions
Final current (mA) and pulse duration (μs) settings5152024
JMinimum detected1520156
Optimal16201613
Maximum tolerated17201713
Contractions1613
Final current (mA) and pulse duration (μs) settings10151617
KMinimum detected159159
Optimal15151511
Maximum tolerated15171514
Contractions
Final current (mA) and pulse duration (μs) settings11151824
LMinimum detected1592020
Optimal15172420
Maximum tolerated15202820
Contractions
Final current (mA) and pulse duration (μs) settings20202428
MMinimum detected15201520
Optimal20202020
Maximum tolerated24202420
Contractions
Final current (mA) and pulse duration (μs) settings20152024
NMinimum detected152153
Optimal154155
Maximum tolerated156157
Contractions
Final current (mA) and pulse duration (μs) settings3151617
OMinimum detected1571511
Optimal15151711
Maximum tolerated15161811
Contractions15161911
Final current (mA) and pulse duration (μs) settings11151719
PMinimum detected157156
Optimal1512246
Maximum tolerated1517306
Contractions
Final current (mA) and pulse duration (μs) settings6182430
  • Final pulse duration settings are presented as minimum, intermediate, and maximum.

  • –: No muscle contractions elicited at maximum tolerated sensory current.

  • *Data not collected.