Table 1.

Summary of participant positioning, stimulation and recording site locations for each study reviewed.

	Desmeules et al. 2014	Krafft et al. 2017	Lim et al. 2012	Biurrun Manresa et al., 2013	Rhudy et al. 2013	Rice et al., 2017	Smith et al., 2014	Sterling et al., 2010	Umeda et al., 2013
Participant position	Not reported	Not reported	Prone	Lying	Reclined sitting	Standing on the nondominant leg	Prone	Prone	Upright sitting
Knee angle	Not reported	Not reported	Right knee with 30 degrees of flexion	10 degrees flexion.	The knee at 160 degrees	Not applicable	Knee flexed 30 degree	Knee flexed 30 degree	Hip flexed at 90 degrees, Knee flexion was 60 degrees.
Site of Electrical Stimulation	Sural N., in the retromalleolar track	Sural N., in the retromalleolar track	Sural nerve just inferior to the lateral malleolus.	Lateral malleolus	Retromalleolar pathway of the sural nerve	Plantar aspect of the foot of the dominant leg	Distal to the left lateral malleolus	Inferior to the lateral malleolus right ankle	Retromalleolar pathway of the sural nerve
Site of recording	Ipsilateral biceps femoris muscle	Ipsilateral biceps femoris muscle)	Right biceps femoris muscle	Belly of the biceps femoris and the rectus femoris muscles	Biceps femoris muscle	Biceps femoris muscle	Biceps femoris muscle	Biceps femoris muscle	Right biceps femoris muscle