There is a lack of comprehensive trunk rehabilitation protocols within the field of multiple sclerosis. The existing studies mostly focus on core stability, pelvic muscles, or alternative methods. Consequently, the aim was to develop a protocol to investigate the potential positive effects of trunk rehabilitation. Drawing from our review of relevant literature, investigators in this study have developed a trunk training protocol that focuses on multiplanar movements carried out on unstable surfaces and additionally, incorporated dual-task training (DT), which adds a layer of complexity.