It is a scale developed in individuals with rheumatoid arthritis and can be used in a wide range of populations while assessing all rheumatic disease groups. It has 8 subheadings and consists of a total of 20 questions. Sub-headings include dressing, sitting and staying, eating, walking, hygiene, reaching, grasping and activities of daily living. Each answer is scored between 0 and 3 points and the higher the score, the more difficult the activity is.

SF-36 scale will be used to determine the level of health status and quality of life of individuals.SF-36 is a patient-oriented assessment scale created in the United States of America that allows for general health screening.Each sub-parameter is scored between 0 and 100 points and a high score indicates good health status.The SF-36 scale has 8 sub-parameters including general health perception, physical function, social function, pain, mental health, role difficulties due to physical causes, role difficulties due to emotional causes and vitality and includes 11 questions with a total of 36 items.

This scale, developed by Sullivan et al. (1995), measures the exaggerated negative mental reaction of individuals to current or anticipated painful experiences and the extent to which they catastrophize pain.The reliability and validity of the Turkish version of the scale was demonstrated by Uğurlu et al. (2017) and consists of 13 items.Each item is scored as never=0, slightly=1, moderately=2, greatly=3 and always=4.A high total score indicates a high degree of catastrophizing of pain.

It is a scale that evaluates fatigue and consists of 9 questions. Each item is scored between 0 and 7. The total score is divided by 9 and a mean score of <4 indicates no fatigue and a mean score of ≥4 indicates fatigue.

This scale is a 17-question scale developed to measure fear of movement/reinjury.The scale includes parameters of injury/re-injury and fear-avoidance in work-related activities

It is used to evaluate the health status and physical functionality of the individual diagnosed with fibromyalgia. It is a 10-question scale that assesses physical function, work status, productivity level, depression, anxiety, sleep, pain, stiffness, fatigue and well-being.

The other 7 items in the scale have a Likert-type scoring scale from 0 to 10. The scale consists of two sub-dimensions (cognitive and emotional). The eighth item consists of an open-ended question. Individuals are asked to answer open-ended questions about the three most important reasons for the illness. A high score indicates that the illness is threatening and a low score indicates that the person is comfortable.

Developed by Melzack in 1987 and the validity and reliability of the Turkish version has been demonstrated, the questionnaire is widely used to measure pain. This questionnaire consists of a total of 15 descriptive words to determine the sensory (11 words) and effective (4 words) characteristics of pain. In this section, pain intensity (0=absent, 1=mild, 2=moderate, 3=severe) is assessed to arrive at three pain scores (sensory, effective and total pain ratio = sensory + effective). In addition, the pain felt at the time of the measurement is calculated with the Visual Analog Scale (VAS) and the total pain intensity is calculated with a 6-point Likert scale. In this scale, 0: no pain, 1: mild, 2: uncomfortable, 3: distressing, 4: terrible, 5: unbearable pain.

The Central Sensitization Scale consists of 2 parts, parts A and B. Symptoms associated with central sensitization in section A is questioned. These symptoms include sensitivity to smell, light, chemical stimuli, headache, full body pain, neck and shoulder tension, muscle stiffness and pain, skin itching/redness, depressive features, waking up restless, restless legs before sleep, sleep disturbance, low energy, anxiety attacks, impaired concentration, memory problems, worsening of symptoms with stress, frequent urge to urinate, bladder discomfort, diarrhea/constipation problems and pelvic pain. Section A contains 25 items with a total score range of 0-100. For each item in this section, one of the following responses is given: "never" (0 points), "rarely" (1 point), "sometimes" (2 points), "often" (3 points), "always" (4 points). A score of 40 and above indicates the presence of central sensitization.

In section B, it is questioned whether the patient has been diagnosed with another.

The balance status of the individual is evaluated by getting up from a chair with back support, walking 3 meters at a normal walking speed and returning back to the chair and the time he/she sits on the chair is measured and recorded in seconds.The test is repeated 3 times.

It will be used to assess the functional capacity of the patients. Patients will be asked to walk as long as possible in a 20-meter hospital corridor for 6 minutes in their own rhythm and with standard commands and the distance walked will be recorded in meters.