Table 3.

GRADE.

Certainty Assessment							No. of Patients		Effect	Certainty
No. of Studies	Study Design	Risk of Bias	Inconsistency	Indirectness	Imprecision	Other Considerations	Motor Imagery	Control	Absolute (95% CI)
Christakou and Zervas [44] Cupal and Brewer [45] Lebon, Guillot and Collet [46]	randomized trials	not serious	serious b	not serious	serious a	none	26	24	MD −1.57 (−3.60 to 0.46)	⨁⨁◯◯ LOW

CI: Confidence interval; MD: mean difference; a: Sample < 400; b. Minimal or no overlap of CI; Heterogeneity (p < 0.05); I² > 50%.