TABLE 3.

Summary of GRADE findings.

Certainty assessment									No. of patients		Certainty	Importance
Outcomes	Stimulation timing	No. of studies	Study design	Risk of bias	Inconsistency	Indirectness	Imprecision	Other considerations	Intervention group	Control group
10 MWT	Online	3	RCT	Seriousa	Not serious	Not serious	Not serious	None	36	37	⊕⊕⊕◯ Moderate	Important
	Offline	2	RCT	Not serious	Not serious	Not serious	Seriousf	None	32	30	⊕⊕⊕◯ Moderate	Important
	Total	5	RCT	Seriousa	Not serious	Not serious	Seriousf	None	68	67	⊕⊕◯◯ Low	Important
6 MWT	Online	2	RCT	Seriousb	Not serious	Not serious	Not serious	None	20	20	⊕⊕⊕◯ Moderate	Important
	Offline	2	RCT	Not serious	Not serious	Not serious	Seriousf	None	32	30	⊕⊕⊕◯ Moderate	Important
	Total	4	RCT	Seriousb	Seriousc	Not serious	Seriousf	None	52	50	⊕◯◯◯ Very low	Important
FAC	Online	1	RCT	Seriousb	N.A.	Not serious	Not serious	None	10	10	N.A.	Important
	Offline	1	RCT	Not serious	N.A.	Not serious	Not serisous	None	11	10	N.A.	Important
	Total	2	RCT	Seriousb	Seriousd	Not serious	Seriousf	None	21	20	⊕◯◯◯ Very low	Important
Gait analysis (cadence)	Online	2	RCT	Seriousb	Seriouse	Not serious	Seriousf	None	20	20	⊕◯◯◯ Very low	Important
	Offline	–	–	–	–	–	–	–	–	–	–	–
	Total	2	RCT	Seriousb	Seriouse	Not serious	Seriousf	None	20	20	⊕◯◯◯ Very low	Important
TUGT	Online	1	RCT	Seriousb	N.A.	Not serious	Seriousf	None	15	15	N.A.	Important
	Offline	1	RCT	Not serious	N.A.	Not serious	Seriousf	None	21	20	N.A.	Important
	Total	2	RCT	Seriousb	Not serious	Not serious	Seriousf	None	36	35	⊕⊕◯◯ Low	Important

N.A.: Not applicable, 10 MWT: 10-m walking test, 6 MWT: 6-min walking test, FAC: Functional ambulation category, TUGT: Timed up and go test, RCT: Randomized controlled trial.

^aIndicating three studies with moderate risk of bias, ^bIndicating one study with moderate risk of bias, ^cI² = 72%, ^dI² = 87%, ^eI² = 73%, and ^fWide 95% confidence interval.