Table 2.

Detailed description of the studies included in the review.

Study, Year, References	Type of Stroke	Number of Patients Tested	Research Instruments: Scales, Tests	Research Group vs. Control Group
Ögün et al., 2019 [44].	Ischemic stroke	65	Action Research Arm Test (ARAT),   Functional Independence Measure (FIM),   Fugl-Meyer Upper Extremity Scale (FMUE),   Performance Assessment of Self-Care Skills (PASS).	Rehabilitation consisted of 18 therapy sessions three days a week for six weeks.   Research group—60 min immersion rehabilitation program of the upper extremity VR. Control group—45 min of conventional therapy, 15 min of sham VR program.
Weber et al., 2019 [45].	Ischemic and hemorrhagic stroke	11	Fugl-Meyer Upper Extremity,   Action Research Arm Test.	Twelve program sessions of 30 min each.   The study did not have a control group. All patients performed the same exercises
Lee et al., 2020 [46].	Ischemic and hemorrhagic stroke	12	Action Research Arm Test,   Box and Block Test (BBT),   Modified Barthel Index (MBI),   Self-reported questionnaire.	Participants performed a total of 10 sessions two to three times a week, 30 min per session.   The study did not have a control group. All patients performed the same exercises.
Huang et al., 2020 [47].	Not specified	18	Fugl-Meyer Assessment (FMA),   Box and Block Test,   Functional Independence Measure.	Research group: over the course of 8 weeks, patients had 20 sessions to complete. There were 3 training sessions of 30 min each in 1 week, 60 min conventional training—a total of 30 h. Control Group: Conventional training of the upper extremities for 90 min—20 sessions—a total of 30 h.
Mekbib et al., 2020 [48].	Ischemic and hemorrhagic stroke	12	Fugl-Meyer Upper Extremity (FM-UE).	Research group: training 8 h of VR and 8 h of conventional therapy over 2 weeks (1 h of VR and 1 h of conventional therapy per day for 4 days per week)
Mekbib et al., 2021 [49].	Ischemic and hemorrhagic stroke	43	Fugl-Meyer Upper Extremity,   Barthel Index (BI).	Research group: 1 h VR and 1 h occupational therapy (OT) daily, 4 days a week for 2 weeks. Control group: occupational therapy 2 h per day, 4 days per week for 2 weeks.
Hsu et al., 2022 [50].	Ischemic and hemorrhagic stroke	54	Fugl-Meyer Upper Extremities, Box and Block Test, Semmes–Weinstein monofilament, Motor activity log, Modified Ashworth scale (MAS)	Each patient performed 20 min of exercise, then depending on the group: COT (conventional, occupational therapy), MT (mirror therapy), or VR-MT (immersive VR-based mirror therapy), they performed 30 min of their program twice a week for 9 weeks.