Parkinson's disease (PD) is a chronic, progressive disease that causes motor and non-motor symptoms due to dopaminergic neuron loss. Today, the treatment of PD in addition to optimal medical and surgical treatments, physiotherapy and rehabilitation approaches have an important place in the treatment. Recently, it has been stated that intensive rehabilitation interventions in the field of physiotherapy and rehabilitation can be more effective than traditional rehabilitation approaches. Lee Silverman VoiceTreatment- BIG (LSVT-BIG) is a high-intensity exercise model aimed at improving bradykinesia and hypokinesia in PD. There are many studies showing improvements in balance, walking, motor performance, reaching ability, postural control, quality of life and cognitive status after LSVT-BIG training in PD. However, it is seen that there is no study investigating the effect of LSVT-BIG training directly by applying it as a home program. For this reason, there is a need for studies investigating whether this intensive treatment method can be an alternative to the clinical environment by applying it as a home program.

This study is planned as a randomized control trial. Patients will be randomly divided into two groups a clinical group and a home group. The clinical group will be received LSVT-BIG training four times a week for four weeks in the clinic. The home group will be received LSVT-BIG training two times a week for four weeks at the home and two times a week for four weeks at the clinical.

All assessments will be done before and after the 4-week intervention program or waiting period. The demographic characteristics of the participants initially will be taken. The outcome measures are balance and gait assessments.

Inclusion Criteria:

• 18-80 years of age
• Having diagnosed with "Parkinson's Disease" by a specialist physician
• Having between 1-3 stages according to the Hoehn and Yahr Scale
• Mini-Mental Test score more than or equal 24

Exclusion Criteria:

- Any orthopedic, vision, hearing, cardiovascular, or perception problems that may affect the research results

There is no plan to make PD data but when the statistical analysis of all data is made, all results will be shared.

Double (Participant, Outcomes Assessor)