Could a breathing trick plus mild zaps strengthen brain pathways in MS?

This study looks at whether combining a special breathing technique (called acute intermittent hypoxia, or AIH) with mild electrical stimulation of leg muscles can boost brain-to-muscle signals in people with relapsing forms of multiple sclerosis. About 40 participants will have their ankle strength and brain responses measured after each type of stimulation, alone and together. The goal is to see if the combination works better than either one alone, which could lead to better rehabilitation therapies in the future.