Table I. Muscle force for the Onion-Skin and AHP schemes at increasing input excitation.

Number of active motor units, average muscle force and CV of the muscle force generated with the AHP (left) and with the Onion-Skin (right) schemes for increasing levels of input excitation to the motoneuron pools of the FDI (top) and VL (bottom) muscles.

			AHP		Onion-Skin
Muscle	Input Excitation Level (%)	# Active Motor Units	Muscle Force (% MVC)	Muscle Force CV (%)	Muscle Force (% MVC)	Muscle Force CV (%)
FDI	5	43	0.92	9.62	8.99	2.11
	10	70	2.88	5.56	21.8	1.61
	20	98	9.68	4.2	41.88	1.78
	30	110	21.53	3.71	55.01	1.54
	40	115	37.67	2.63	65.37	1.52
	50	118	55.17	1.83	74.25	1.31
	60	119	71.44	1.78	82.4	1.14
	70	120	84.67	1.14	87.08	0.98
	80	120	92.96	0.63	92.58	1.2
	90	120	97.35	0.45	96.5	1.06
	100	120	99.12	0.39	99.33	1.01
VL	5	28	0.11	10.6	0.46	1.2
	10	71	0.62	5.61	2.18	0.96
	20	181	3.77	2.72	10.31	0.6
	30	293	10.6	1.54	23.53	0.58
	40	389	21.06	0.92	39.28	0.48
	50	462	34.17	0.63	54.65	0.56
	60	515	48.78	0.39	67.93	0.48
	70	552	63.66	0.33	78.79	0.5
	80	577	77.72	0.29	87.5	0.51
	90	594	90.13	0.28	94.3	0.54
	100	600	98.76	0.26	98.9	0.44