The effectiveness of upper extremity focused neuromuscular exercise training in early stage people with MS will be investigated. People with MS enrolled in the study will be randomly assigned to three groups: Neuromuscular Exercise Group (NEG), Conventional Exercise Group (CEG), and Control Group (CG). All three groups will be assessed with primary and secondary outcome measures at baseline, week 8, and week 12. NEG, CEG, and CG will be initially assessed for upper extremity function, cognitive function, lower extremity function, grip strength, proximal muscle strength, sensation, coordination, fatigue, postural sway, and core muscle strength and endurance. Then, NEG will receive clinically supervised upper extremity focused neuromuscular exercise training with a minimum of 60 minutes of session time, 2 days a week for 8 weeks. This exercise training includes steps for postural control, weight transfer, proximal and distal muscle strengthening, proprioception, coordination and reaction speed. Similarly, CEG will receive clinically supervised traditional upper extremity exercise training, twice a week for 8 weeks, with a minimum of 60 minutes of session time. This exercise training includes strengthening with the band and manuel dexterity exercises. In both groups, stretching and mobility exercises will be added to the warm-up and cool-down exercises before and after the program. During this process, CG will be on the waiting list. At the end of 8 weeks, all three groups will be re-evaluated. After the exercise training, follow-up will be done and evaluations will be repeated in the 12th week. This study will provide evidence on the effects of upper extremity-focused neuromuscular exercise training on physical and cognitive functions in early-stage people with MS compared to traditional treatment approaches.