ARTICLE OF THE WEEK! LEE SILVERMAN VOICE TREATMENT (LSVT) - BIG TO IMPROVE MOTOR FUNCTION IN PEOPLE WITH PARKINSON'S DISEASE: A SYSTEMATIC REVIEW AND META-ANALYSIS This article focused on analysing all studies that utilised the intensive movement amplitude protocol (LSVT - BIG), to improve motor function in those with mild to moderate Parkinson's Disease (Hoehn and Yahr Scale 1-3). Common symptoms of Parkinson's Disease are hypokinesia and bradykinesia, or small and slow limb and body movements.