Table 2.

Sigmoid function predicted parameters for the soleus H-reflex.

Study groups	Time	R2	m	S50-Hmax	Slope	Stim at threshold	Stim at maximal
Active-standing	Before	0.88 ± 0.09	2.56 ± 4.56	21.13 ± 12.58	2.51 ± 1.89	18.61 ± 11.53	23.63 ± 13.8
	After	0.87 ± 0.09	1.63 ± 0.8	16.01 ± 6.5	1.66 ± 1.12	14.35 ± 5.51	17.67 ± 7.53
Sham-standing	Before	0.89 ± 0.09	1.43 ± 0.66	15.55 ± 3.83	1.86 ± 1.22	13.68 ± 3.85	17.41 ± 4.19
	After	0.89 ± 0.07	1.91 ± 0.92	8.49 ± 0.62	1.24 ± 0.53	7.25 ± 0.48	9.74 ± 1.04
Active-supine	Before	0.89 ± 0.06	1.69 ± 1.67	15.04 ± 5.21	1.78 ± 0.83	13.26 ± 4.56	16.82 ± 5.91
	After	0.87 ± 0.08	3.63 ± 4.01	9.28 ± 5.48	1.12 ± 0.7	8.16 ± 4.9	10.41 ± 6.08

Sigmoid function parameters were estimated from the sigmoid fitted to the soleus H-reflexes (corresponding to below Ia afferent threshold until the H-reflex reached maximal amplitudes) normalized to the homonymous maximal M-wave and plotted against the stimulation intensities that were normalized to the S50-Hmax observed before treatment. This was performed for each subject separately and values were averaged based on study group. R2 denotes the best fit; m, slope parameter of the function; S50, Stimulus at 50% of maximal H-reflex. Values are indicated as mean ± SD.