Table 3.

Summary of study design.

Study	Control group	Randomization	Blinding	Evaluation time points
				Baseline	Post-training	Follow-up (weeks)
DEMENTIA
Surmeli et al. (2016)	No	No	No	Yes	Yes	No
Luijmes et al. (2016)	No	No	No	Yes (up to 3 months before)	Yes	No
Hohenfeld et al. (2017)	Yes	NR	NR	Yes	Yes	No
Hohenfeld et al. (2020)	Yes	NR	NR	Yes	Yes	No
MCI
Mendoza Laiz et al. (2018)	No	No	No	Yes	Yes	No
Jang et al. (2019)	No	No	No	Yes	Yes	No
Jirayucharoensak et al. (2019)	Yes	Yes	NR	Yes	Yes	No
Lavy et al. (2019)	No	No	No	Yes	Yes	Yes (4)
Li et al. (2020)	No	No	No	Yes	Yes	No
Marlats et al. (2020)	No	No	No	Yes	Yes	Yes (4)

NR, Not Reported.