Changes in leg cycling muscle synergies after training augmented by functional electrical stimulation in subacute stroke survivors: a pilot study

Table 4 Longitudinal changes in synergy complexity metrics

Synergy complexity	Side	T1	T2	p-value† (T1 vs T2)	p-value † (T1 aff vs unaff)	p-value † (T2 aff vs unaff)	Healthy values [11]	p-value (T1 vs H)	p-value (T2 vs H)
N synergies	Aff	3 [1]	3 [1]	0.405	0.196	0.750	4 [1]	0.132^χ	0.071^χ
N synergies	Unaff	4 [1]	3 [1]	0.046*	0.196	0.750	4 [1]	0.590^χ	0.085^χ
VAF₁	Aff	0.64 [0.08]	0.65 [0.09]	0.185	< 0.001*	0.004*	0.61 [0.08]	0.553^§	0.919^§
VAF₁	Unaff	0.58 [0.07]	0.60 [0.08]	0.385	< 0.001*	0.004*	0.61 [0.08]	0.001^§*	0.054^§

Values are presented as median [IQR]; VAF₁ Variance Accounted For of one synergy, T1 Pre-intervention, T2 Post-intervention, H Healthy group, Aff Affected Leg, Unaff Unaffected leg, H Healthy Group
† Wilcoxon signed rank Test. χ Pearson’s Chi-squared Test; § Mann-Whitney U Test; *p < 0.05

ISSN: 1743-0003