The Effect of NeuroMuscular Electrical Stimulation on Quadriceps Strength and Knee Function in Professional Soccer Players: Return to Sport after ACL Reconstruction

Table 3

Goniometry pendulum test in group B.

Parameter	Before therapy		After therapy		Followup				Level of significance
					1 month		3 months
	Mean	SD	Mean	SD	Mean	SD	Mean	SD
𝜆
Operated	0.55	0.21	0.58	0.19	0.56	0.22	0.55	0.20	𝑃>0.05
Nonoperated	0.48	0.21	0.43	0.19	0.44	0.22	0.45	0.20	*(in all comparisons)
𝛽 [s^−1]
Operated	0.75	0.32	0.76	0.21	0.75	0.22	0.75	0.28	𝑃>0.05
Non-operated	0.58	0.27	0.57	0.28	0.55	0.25	0.54	0.28	*(in all comparisons)
𝑇 [s]
Operated	0.87	0.34	0.90	0.35	0.90	0.29	0.90	0.30	𝑃>0.05
Non-operated	0.95	0.19	0.97	0.19	0.97	0.19	0.99	0.20	*(in all comparisons)
𝑛
Operated	3.35	1.31	3.33	1.38	3.33	1.30	3.33	1.30	𝑃>0.05
Non-operated	4.75	1.31	4.79	1.39	4.80	1.41	4.80	1.41	*(in all comparisons)
𝑡 [s]
Operated	2.11	1.03	2.09	1.04	2.10	1.11	2.11	1.01	𝑃>0.05
Non-operated	3.10	1.28	3.11	1.25	3.11	1.11	3.10	1.09	*(in all comparisons)

∗Analysis of variance ANOVA.
Legends:
𝜆: logarithm decrement of suppression (more than 0.65 is pathology of I Outebridge degree of the articular cartilage), 𝛽: suppression index (more than 0.85 is pathology of I Outebridge degree of the articular cartilage), 𝑇: period of oscillations (less than 0.75 is pathology of I Outebridge degree of the articular cartilage), 𝑛: number of oscillations (less than 3.00 is pathology of I Outebridge degree of the articular cartilage), and 𝑡: whole time of oscillations (less than 1.50 is pathology of I Outebridge degree of the articular cartilage).