Table 3.

Quality assessment.

Authors	Study Design	Quality
Romero Robles et al. [24]	Systematic review	Low risk
Garcia Marcos et al. [25]	Systematic review with meta-analysis	Medium risk
Teixeira et al. [26]	Systematic review	Low risk
Bujtor et al. [27]	Systematic review	Medium risk
García-Hermoso et al. [28]	Systematic review with meta-analysis	Low risk
Koumpagioti et al. [29]	Systematic review	Medium risk
Lassale et al. [30]	Systematic review	Medium risk
Lv et al. [31]	Systematic review	Low risk
Eslami et al. [32]	Systematic review	Low risk
Papamichael et al. [33]	Systematic review	Low risk
Iaccarino et al. [34]	Systematic review	Low risk