[Effectiveness of motor imagery in patients with multiple sclerosis: a systematic review]

Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system. Motor imagery (MI) has been proposed as a treatment to improve gait, fatigue and quality of life in these dysfunctions.

To assess the effectiveness of MI, action observation therapy or mirror therapy approaches compared to other rehabilitation modality or no intervention, in MS.

A systematic review of randomized controlled trials was conducted. Studies published in the last ten years investigating MI versus other interventions or no intervention in patients with MS were included. PEDro scale was used to assess methodological quality of included studies. Eight studies met the eligibility criteria. For fatigue, the MI and its combination with relaxation seem to be superior compared with other types of interventions or no intervention. The MI combined with music also showed significant improvements in gait and quality of life (QoL).

MI and its combination with relaxation exercises have been shown to be effective in the treatment of fatigue, gait, balance, depression and QoL in patients with MS. The action observation therapy is useful in upper limb rehabilitation and improvement in attention, executive control and activation of sensorimotor networks. Further research with high methodological quality is needed to support these findings and to evaluate their effectiveness in long term.