Real-time biofeedback, particularly visual, is gaining attention in neurorehabilitation, especially for gait training. However, its impact on cognitive load remains poorly understood, despite its role in influencing gait performance. We present here the protocol for a study where 40 healthy participants will be recruited and asked to complete a series of gait tasks with and without visual real-time biofeedback. This work aims to investigate the cognitive load associated with different visual real-time biofeedback paradigms during gait training. Cognitive load will be evaluated using electroencephalography of the frontal and parietal lobes, power spectral density analysis of the corresponding channels, and a questionnaire. The findings will enhance our understanding of how visual biofeedback affects cognitive load, informing future designs to optimize both cognitive load and gait performance in rehabilitation settings.