The study will be conducted on volunteer patients diagnosed with multiple sclerosis by a specialist physician in the Department of Neurology of Isparta Süleyman Demirel University Hospital. All stages of the study will be conducted at Isparta Süleyman Demirel University. Informed consent form will be obtained from all patients participating in the study.The research protocol consists of two main phases. In Phase 1, "Basic Assessment and Grouping," participants' aerobic fitness will be determined using the 6-Minute Walk Test (6MWT). Based on the walking distance results, the sample will be divided into two groups: "Group 1: Those with High Aerobic Fitness" and "Group 2: Those with Low Aerobic Fitness."In Phase 2, the "Joint Clinical and Dual Task Protocol," data will be collected using a Personal Information Form, the Timed 25-Step Walk Test (T25WWT), the Timed Up and Walk Test (TUWT), the Berg Balance Scale (BBS), the Modified Clinical Sensory Interaction Test (MCIT), the Activity-Specific Balance Confidence Scale (ASBCS), and the Modified Fatigue Impact Scale (MFIS).
