Allied health care interventions and complementary therapies in Parkinson's disease.

Allied health care and complementary therapies are used by many patients with Parkinson's disease (PD). For allied health care, supportive scientific evidence is gradually beginning to emerge, and interventions are increasingly integrated in the treatment programs for PD patients. To evaluate whether such multidisciplinary programs are justifiable, we review the literature of allied health care and complementary therapies in PD. According to the level of available evidence, we provide recommendations for clinical practice. Finally, we discuss the need for an improved organization of allied health care, and identify topics for future research to further underpin the pros and cons of allied health care and complementary therapies in PD.