Towards efficient motor imagery interventions after lower-limb amputation
Résumé
Abstract
Background The therapeutic benefits of motor imagery (MI) are now well-established in different populations of
persons suffering from central nervous system impairments. However, research on similar efficacy of MI interventions
after amputation remains scarce, and experimental studies were primarily designed to explore the effects of MI after
upper-limb amputations.
Objectives The present comparative study therefore aimed to assess the effects of MI on locomotion recovery
following unilateral lower-limb amputation.
Methods Nineteen participants were assigned either to a MI group (n=9) or a control group (n=10). In addition
to the course of physical therapy, they respectively performed 10 min per day of locomotor MI training or neutral
cognitive exercises, five days per week. Participants’ locomotion functions were assessed through two functional tasks:
10 m walking and the Timed Up and Go Test. Force of the amputated limb and functional level score reflecting the
required assistance for walking were also measured. Evaluations were scheduled at the arrival at the rehabilitation
center (right after amputation), after prosthesis fitting (three weeks later), and at the end of the rehabilitation program.
A retention test was also programed after 6 weeks.
Results While there was no additional effect of MI on pain management, data revealed an early positive impact of MI
for the 10 m walking task during the pre-prosthetic phase, and greater performance during the Timed Up and Go Test
during the prosthetic phase. Also, a lower proportion of participants still needed a walking aid after MI training. Finally,
the force of the amputated limb was greater at the end of rehabilitation for the MI group.
Conclusion Taken together, these data support the integration of MI within the course of physical therapy in persons
suffering from lower-limb amputations.
Keywords Mental practice, Amputees, Clinical rehabilitation, Motor recovery
Domaines
NeurosciencesOrigine | Fichiers produits par l'(les) auteur(s) |
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