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ULTIMO FASCICOLOEUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE

Rivista di Medicina Fisica e Riabilitativa dopo Eventi Patologici


Official Journal of the Italian Society of Physical and Rehabilitation Medicine (SIMFER), European Society of Physical and Rehabilitation Medicine (ESPRM), European Union of Medical Specialists - Physical and Rehabilitation Medicine Section (UEMS-PRM), Mediterranean Forum of Physical and Rehabilitation Medicine (MFPRM), Hellenic Society of Physical and Rehabilitation Medicine (EEFIAP)
In association with International Society of Physical and Rehabilitation Medicine (ISPRM)
Indexed/Abstracted in: CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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European Journal of Physical and Rehabilitation Medicine 2013 Giugno;49(3):291-9

 ORIGINAL ARTICLES

Motor strategies and bilateral transfer in sensorimotor learning of patients with subacute stroke and healthy subjects. A randomized controlled trial

Iosa M. 1, Morone G. 1, Ragaglini M. R. 1, 2, Fusco A. 1, Paolucci S. 1

1 Clinical Laboratory of Experimental Neurorehabilitation, I.R.C.C.S. Santa Lucia Foundation, Rome, Italy;
2 School of Physiotherapy, Tor Vergata University of Rome, I.R.C.C.S. Santa Lucia Foundation, Rome, Italy

Background: Bilateral transfer, i.e. the capacity to transfer from one to the other hand a learned motor skill, may help the recovery of upper limb functions after stroke.
Aim: To investigate the motor strategies at the basis of sensorimotor learning involved in bilateral transfer.
Design: Randomized controlled trial.
Setting: Neurorehabilitation Hospital.
Population: Eighty right-handed participants (65±13 years old): 40 patients with subacute stroke, 40 control healthy subjects.
Methods: Subjects performed the 9 hole-peg-test twice in an order defined by random allocation: first with low and then with high skilled hand (LS-HS) or the reverse (HS-LS). Time spent to complete the test and filling sequence were recorded, together with maximum pinch force (assessed using a dynamometer), upper limb functioning (Motricity Index), spasticity (modified Ashworth Scale), limb dominance (Edinburgh Handeness Inventory).
Results: As expected, in patients, the performance was found related to the residual pinch force (P<0.001), upper limb motricity (P=0.006) and side of hemiparesis (P=0.016). The performances of all subjects improved more in HS-LS than in LS-HS subgroups (P=0.043). The strategy adopted in the first trial influenced the velocity in the second one (P=0.030).
Conclusion: Bilateral transfer was observed from high to low skilled hand. Learning was not due to a mere sequence repetition, but on a strategy chosen on the basis of the previous performance.
Clinical Rehabilitation Impact: The affected hand of patients with subacute stroke may benefit from sensorimotor learning occurred with the un-affected hand.

lingua: Inglese


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