The study will be conducted in collaboration with Gazi University Faculty of Health Sciences and Nigde Omer Halisdemir University. The study data will be obtained from individuals diagnosed with PD admitted to the Neurology Outpatient Clinic of Nigde Omer Halisdemir University Training and Research Hospital. Necessary permissions were obtained from all institutions. All evaluations will be collected in a single meeting using the face-to-face interview method. It is calculated that 80% power will be reached with a margin of error of 0.05 when 84 individuals diagnosed with PD are included in the study.

Individual characteristics of the patients (gender, age, height, body weight, marital status, education level, dominant extremity, smoking and alcohol consumption habits, use and type of assistive device, how many years the assistive device has been used) and disease-related (year of diagnosis, disease duration Information (such as CV, family history, medications used, surgeries) will be questioned. HYE and UPDRS will be used for disease staging and grading. PFS-16 will be used to evaluate fatigue and MMSE will be used to evaluate sleep. In addition, "Timed Up and Go (TUG)" will be applied for lower extremity performance evaluation. All evaluations will be collected in a single meeting using the face-to-face interview method.

PFS-16, consists of 16 items designed to evaluate the impact of fatigue on daily life and its physical dimensions. The scale allows measuring the presence of fatigue (7 items) and its impact on daily function (9 items). Individuals are asked to respond to statements about fatigue on a 5-point Likert scale between 1 (strongly disagree) and 5 (strongly agree).

Each item of the scale, which consists of 14 items, is scored between 0 and 3. For anxiety and depression values, 0-7 points are considered normal, 8-10 points are considered borderline, and 11 points and above are considered abnormal. The validity and reliability of this scale in Turkish has been established.

The scale is a 5-point Likert type (4: Very often, 6-7 days a week; 3: Frequently, 4-5 days a week; 2: Sometimes, 2-3 days a week; 1: Occasionally, 1 day a week; 0: Never) consists of 15 items. The scale includes general night sleep quality (item 1), falling asleep (item 2), insomnia (item 3), night restlessness (items 4 and 5), night psychosis (items 6 and 7), nocturia (item 8). . and items 9), night motor symptoms (items 10, 11, 12 and 13), waking up rested (item 14) and sleep-disordered breathing (item 15) are evaluated.

Timed get up and go test is used for functional evaluation of patients. This test is important in terms of evaluating patients' walking speed as well as testing their ability to maintain balance. In the test application, after the patient gets up from the chair without back support, he walks three meters to the marked area, turns back, and on the way back, the time to sit on the chair is calculated by walking three meters again. The test is repeated three times and the average in seconds is recorded.

MMSE will be used to evaluate cognitive functions. The mini mental test is categorized under five main headings. It consists of 11 items including orientation (10 points), recording memory (3 points), attention and calculation (5 points), recall (3 points) and language (9 points). It is evaluated over 30 points in total. A score between 24-30 points is defined as normal, 18-23 points as mild dementia, and 17 points and below as severe dementia. The average administration time of the test is 10 minutes. Patients scoring 18 and above will be included in the study.