Table 5.

Summary of the findings from the six papers with interventions regarding electrical stimulation.

Authors	Interventions	Sample Size	Relative Risk Reduction of Pain WOMAC
Atamaz et al., (2012) [73]	TENS	n = 29	11%
	IFC	n = 27	11%
Pietrosimone et al., (2020) [72]	TENS + TE	n = 30	10.57%
	sham TENS + TE	n = 30	3.3%
	TE only	n = 30	12%
Adedoyin et al., (2005) [75]	exercise+ electrical stimulation	n = 16	27%
	exercise	n = 11	7%
Garland et al., (2007) [76]	Active device	n = 38	26%%
	Placebo device	n = 20	7%
Fary et al., (2011) [74]	Pulse Electrical Stimulation	n = 34	11%
	placebo	n = 36
Shimoura et al., (2019) [77]	TENS Stair climb	n = 50	33% (VAS)
	TENS Timed up and go		26% (VAS)
	TENS 6 mi walk test		55% (VAS)