Table 2.

Stimulation pulse-widths us for each subject

Muscle	Side	S1		S2		S3		S4		S5
		Baseline	High	Baseline	High	Baseline	High	Baseline	High	Baseline	High
Erector spinae	Right	75	100	75	34	100	150	50	250	63	250
	Left	130	250	112	30	100	250	50	130	63	250
Quadratus lumborum	Right	250	250	34	90	N/A	N/A	N/A	N/A	N/A	N/A
	Left	250	30	30	30	N/A	N/A	N/A	N/A	N/A	N/A
Iliopsoas	Right	N/A	N/A	0	0	N/A	N/A	N/A	N/A	N/A	N/A
	Left	N/A	N/A	0	0	N/A	N/A	N/A	N/A	N/A	N/A
Gluteus maximus	Right	200	250	62	75	60	120	250	250	100	250
	Left	40	250	75,7	112,250	60	250	250	250	80	250
Semimembranosus	Right	0	250	7	250	100	250	0	250	250	250
	Left	0	250	12,1	150,70	100	250	0	250	250	250
Posterior adductors	Right	50	250	6	250	75	250	0	200	250	250
	Left	55	200	1	250	75	225	0	250	250	250
Gluteus medius	Right	N/A	N/A	0	0	60	60	N/A	N/A	N/A	N/A
	Left	N/A	N/A	0	0	60	60	N/A	N/A	N/A	N/A

The ‘Baseline’ values were those used for steady state erect sitting while the ‘High’ values were those applied whenever the trunk crossed the flexion threshold. An ‘N/A’ entry implies that electrodes were not implanted to activate the muscle in that subject. Multiple entries in a cell mean that there are multiple electrodes to activate the muscle and each is controlled independently.