Mobilisation specifically on the C7 segment will be performed by the physiotherapist 2 times a week for 3 weeks, making decisions on the choice of key parameters including treatment technique, spinal level, degree, direction, side and duration.

The patients were asked to stretch for 20 s with the other hand with the shoulder in internal rotation, elbow in extension, forearm in pronation, wrist in flexion and ulnar deviation. In the first week, stretching exercises were recommended to be performed 3 sets a day, 5⨯20 s in one set and 45 s rest interval before strengthening exercises. The application will be performed with the thumb in the transverse direction, with the pressure tolerated by the individual, for 10 minutes after numbness is obtained, the treatment lasts approximately 10-15 minutes.

The patients were asked to stretch for 20 s with the other hand with the shoulder in internal rotation, elbow in extension, forearm in pronation, wrist in flexion and ulnar deviation. In the first week, stretching exercises were recommended to be performed 3 sets a day, 5⨯20 s in one set and 45 s rest interval before strengthening exercises. Starting from the 2nd week of treatment, it will be requested to be performed 3 sets a day, 5⨯20 s in one set, 5⨯20 s before exercise and 5⨯20 s after exercise.

mobilization and exercise to be applied to patients with chronic lateral epicondylitis

In the assessment of pain, the "Visuel Analog Scale (VAS)" will be used and people will be asked to indicate the severity of their pain in the last 24 hours on a 10 cm chart. Before and after the session, VAS will be evaluated and recorded with the values measured with algometer. According to the pain scale in VAS application; "0" means no pain and "10" means the presence of unbearable pain, while patients will be asked to mark the pain they feel numerically between 0-10.

The scale consists of 36 statements. The scale has 8 dimensions including physical functioning (FF), social functioning (SF), role limitations related to physical functioning (RRF), role limitations related to emotional problems (ERR), mental health (MS), vitality (C), bodily pain (BA) and general health perception (GS). Quality of life increases as the scores on the scale increase. Minimum score is 0 and maximum score is 100.

Duruöz Hand Index (DEI) specifically for rheumatoid arthritis patients. The index includes hand dexterity in the kitchen, during dressing, while maintaining personal hygiene, at work and other general movements. Participants rate 18 items from 0 (no difficulty) to 5 (impossible to do). The total score ranges from 0-90. A high score indicates impaired hand function.

Grip strength will be evaluated with Jamar Hand Dynamometer. In the grip strength evaluations of the hand, measurements will be taken from both the patient and the healthy side. In the measurements made from the patient side, painless grip strength and maximum grip strength will be evaluated separately in the elbow flexion position and elbow extension position. On the healthy side, maximum grip strength will be evaluated in both positions. Patients will be positioned and evaluated according to the holding and gripping force of the dynamometer to be used. The patient will be asked to squeeze the dynamometer as strongly as possible for 5 seconds, first with the intact and then with the affected side, and 3 measurements will be made with one-minute breaks between the measurements and the averages will be recorded.