Table 1.

Reasons for study exclusion following title and abstract and full-text analyses.

No control group	Healthy controls	Interventional studies
Amaral et al. [15] Enger et al. [16] Fernández Castro et al. [17] Nesvold et al. [18] Rojas-Alcayaga et al. [19] Serrano et al. [20] Stewart et al. [21] Vujovic et al. [22] Yalcinkaya et al. [23] Yenissoy et al. [24]	Azuma et al. [25] Azuma et al. [26] Li et al. [27] Molania et al. [28] Moreno-Quispe et al. [29] Rusthen et al. [30] Šijan Gobeljić et al. [31]	da Mata et al. [32] López-Pintor et al. [33] Mumcu et al. [34]