In this group, we will use a reaction training and measurement system (Blazepod) for visual stimuli reaction training. Each exercise duration will be three minutes. The experimental group will apply reaction training two times a week for eight weeks. Each session will complet in 60 minutes.

The exercises used in reaction training will be applied as in conventional training without visual aids. The difficulty of the exercise will be increased by changing the support surface and ground properties, taking the difficulty perceived by the individual as the criterion, as in reaction training.

• The exercise list consists of 15 different exercises that aim to both shorten reaction time and improve stability with upper and lower extremity movements in different positions. In addition, the program includes both dual motor tasks and difficulties that require the physiotherapist to give the patient constantly changing motor tasks (tasks related to the color of the light to be touched, giving the command to read lights that are lit in different directions) and a second cognitive task.

• Each station will be worked for 3 minutes, with at least 1 minute of rest between stations. Sessions will be planned by selecting the exercises in the exercise list for 60 minutes.

  • Appropriate modifications will be made to the station so that the difficulty of the exercise in the relevant station will be moderate (12-15 points) according to the Borg scale.

Quantitative assessment of balance, allows the assessment of postural oscillations in different conditions such as two legs and one leg stance positions. For this purpose, a force platform (K-Force Platform, K-İnvent®) will be used for postural oscillations in different conditions. It will be done in two-leg stance with eyes open, in two-leg stance with eyes closed, and in one-leg stance. Each test will be performed 3 times.

A force platform (K-Force Plate, K-İnvent) will be used to determine the amount of pressure center shift during the participants' stepping. Participants will be asked to stand on the force platform with their legs hip-width apart, in a posture as upright and stable as possible, and looking ahead at eye level. An audio stimulus will be used as a signal to start the movement. The measurement for the pressure center will be started 30 seconds before the signal to start the movement. Participants will be asked to stand in as upright and stable a position as possible for 30 seconds. At the end of 30 seconds, they will be asked to take the correct step first without waiting and as quickly as possible when they hear the audio stimulus. For the position analysis, the average and standard deviation of the positions in the 30-second standing position will be calculated.

Measurement of reaction time will be done with the light reaction measurement and exercise system (Blazepod®) to be provided within the scope of the project for visual stimulus reaction training. There are two different concepts for reaction time: simple and choice. Simple reaction time is defined as the time between a single stimulus given and a single response. Choice reaction time is defined as the time between multiple stimuli given to the person and the appropriate response to the stimulus.

The functional mobility of the patients will be assessed with the Timed Up and Go Test (TWG). In the test, the patient is asked to get up from the chair with the "walk" command, walk 3 m, turn around, and then sit back on the chair. The test is performed on a 3-meter flat surface.