Table 1.

Classification of studies of CT in PD according to design.

Single group, uncontrolled studies	Waitlist-controlled studies	Studies comparing CT to standard treatments	Comparing different CT interventions
Sinforiani et al., [68] Mohlman et al., [69] Disbrow et al., [70]	Nombela et al., [71] Naismith et al., [72] Edwards et al., [73]	Sammer et al., [74] París et al., [75] Pompeu et al., [76] Peña et al., [77] Cerasa et al., [78]	Reuter et al., [79] Petrelli et al., [80] Zimmermann et al., [81]