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Observation of others' actions during limb immobilization prevents the subsequent decay of motor performance

De Marco, Doriana ; Scalona, Emilia ; Bazzini, Maria Chiara ; Nuara, Arturo ; Taglione, Elisa ; Lopomo, Nicola Francesco ; Rizzolatti, Giacomo ; Fabbri-Destro, Maddalena ; Avanzini, Pietro

Proceedings of the National Academy of Sciences - PNAS, 2021-11, Vol.118 (47), p.1 [Periódico revisado por pares]

United States: National Academy of Sciences

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  • Título:
    Observation of others' actions during limb immobilization prevents the subsequent decay of motor performance
  • Autor: De Marco, Doriana ; Scalona, Emilia ; Bazzini, Maria Chiara ; Nuara, Arturo ; Taglione, Elisa ; Lopomo, Nicola Francesco ; Rizzolatti, Giacomo ; Fabbri-Destro, Maddalena ; Avanzini, Pietro
  • Assuntos: Adult ; Biological Sciences ; Biomechanical Phenomena ; Decay ; Female ; Grasping ; Hand Strength - physiology ; Humans ; Immobilization ; Immobilization - physiology ; Kinematics ; Male ; Motor task performance ; Movement - physiology ; Observation ; Psychomotor Performance - physiology ; Rehabilitation ; Upper Extremity ; Young Adult
  • É parte de: Proceedings of the National Academy of Sciences - PNAS, 2021-11, Vol.118 (47), p.1
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Contributed by Giacomo Rizzolatti, September 29, 2021 (sent for review December 23, 2020; reviewed by Ferdinand Binkofski, Günther Knoblich, and Steven Small)
    1D.D.M., E.S., M.F.-D., and P.A. contributed equally to this work.
    Author contributions: D.D.M., E.S., E.T., M.F.-D., and P.A. designed research; D.D.M., E.S., and M.C.B. performed research; D.D.M., E.S., M.C.B., A.N., N.F.L., and P.A. analyzed data; and D.D.M., E.S., A.N., G.R., M.F.-D., and P.A. wrote the paper.
  • Descrição: There is rich clinical evidence that observing normally executed actions promotes the recovery of the corresponding action execution in patients with motor deficits. In this study, we assessed the ability of action observation to prevent the decay of healthy individuals' motor abilities following upper-limb immobilization. To this end, upper-limb kinematics was recorded in healthy participants while they performed three reach-to-grasp movements before immobilization and the same movements after 16 h of immobilization. The participants were subdivided into two groups; the experimental group observed, during the immobilization, the same reach-to-grasp movements they had performed before immobilization, whereas the control group observed natural scenarios. After bandage removal, motor impairment in performing reach-to-grasp movements was milder in the experimental group. These findings support the hypothesis that action observation, via the mirror mechanism, plays a protective role against the decline of motor performance induced by limb nonuse. From this perspective, action observation therapy is a promising tool for anticipating rehabilitation onset in clinical conditions involving limb nonuse, thus reducing the burden of further rehabilitation.
  • Editor: United States: National Academy of Sciences
  • Idioma: Inglês
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