Table 4.

Characteristics of interventions used in the included studies.

Study	Intervention	Type of NIVR	Time per Session	Frequency	Duration of Treatment
Del Din et al. (2020) [37]	CG = TM EG = TM + NIVR	Large screen Modified Microsoft Kinect	40 min	3/wk	6 wk
Pelosin et al. (2020) [38]	CG = TM EG = TM + NIVR	Large screen Modified Microsoft Kinect	45 min	3/wk	6 wk
Santos et al. (2019) [39]	CG = CE EG1 = NIVR EG2 = NIVR + CE	Nintendo Wii Fit	50 min	2/wk	8 wk
Feng et al. (2019) [40]	CG = CP EG = NIVR	Nintendo Wii Fit	45 min	5/wk	12 wk
Gandolfi et al. (2017) [41]	CG = clinical SIBT EG = home NIVR	Nintendo Wii Fit	50 min	3/wk	7 wk
Mirelman et al. (2016) [42]	CG = TM EG = TM + NIVR	Large screen Modified Microsoft Kinect	45 min	3/wk	6 wk
Negrini et al. (2016) [43]	CG = NIVR 10 ss EG = NIVR 15 ss	Nintendo Wii Fit	30 min	CG = 2/wk EG = 3/wk	5 wk
Yang et al. (2016) [44]	CG = CE	Touch screen	50 min	2/wk	6 wk
	EG = home NIVR	Virtual balance training system
Lee et al. (2015) [45]	CG = NDT + FES EG = NDT + FES + NIVR	Nintendo Wii Fit	45 min 75 min	5/wk	6 wk
Liao et al. (2015) [46]	CG = FPE	Nintendo Wii Fit	60 min	2/wk	6 wk
	EG1 = CE + TM
	EG2 = NIVR + TM

ABC = Activities-specific Balance Confidence Scale; BBS = Berg balance scale; CE = Conventional exercise; CG = Control group; CP = Conventional physiotherapy; EG = Experimental group; FES = Functional electrical stimulation; FES-I = Falls Efficacy Scale; FPE = Fall prevention education; FRA = fall rates relative to activity exposure index; HE = Healthy elderly patients; HT = Home training; IF = Idiopathic falls; MCI = Mild cognitive impairment; MV = Dynamic balance test; NDT = Neurodevelopmental treatment; NW = Nintendo Wii Fit; OA = Osteoarthritis; TM = Treadmill; TT = Tinetti Test; TUG = Timed Up and Go; Tx = Treatment; SIBT = Sensory Integration Balance Training; SOT = Sensory organization test; VR = virtual reality; WK = Weeks.