Table 3.

Quality assessment of included studies

Reference	Cochrane collaboration tool domain
	Random sequence generation	Deviation from intended intervention	Missing outcome data	Outcome measurement	Selective reporting	Overall ROB
HIMT versus passive or habitual activity control
Paoli et al. [44]	−	−	+	−	−	×
Meier et al. [47]	−	−	+	−	−	×
Schmidt et al. [58]	−	×	×	−	−	×
Batrakoulis et al. [18]	+	×	×	−	−	×
Romero-Arenas et al. [46]	−	−	+	+	−	×
Ajjimaporn et al. [43]	−	−	+	−	−	×
Engel et al. [41]	−	−	+	×	−	×
Batrakoulis et al. [40]	+	×	×	×	−	×
Eather et al. [25]a	−	+	×	×	−	×
Islam et al. [66]	−	×	×	−	−	×
McWeeny et al. [36]	−	−	+	−	−	×
Batrakoulis et al. [39]	+	×	×	−	−	×
HIMT versus structured activity (concurrent training)
Davis et al. [32]	×	×	×	+	−	×
Davis et al. [33]	×	×	×	+	−	×
Mirzaei et al. [45]	−	−	+	−	−	×
Heinrich et al. [24]	−	×	×	×	−	×
Carneiro et al. [35]	−	×	×	−	−	×
Nunes et al. [42]	−	−	+	−	−	×
Bahremand et al. [34]	−	×	×	−	−	×
Hovsepian et al. [67]	−	×	×	−	−	×

HIMT, High-Intensity Multimodal Training; ROB risk of bias, + low risk of bias, × high risk of bias, − some risk of bias

^aIntention-to-treat analysis