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European Journal of Physical and Rehabilitation Medicine 2017 June;53(3):390-9

DOI: 10.23736/S1973-9087.16.04407-5


language: English

Using robot fully assisted functional movements in upper-limb rehabilitation of chronic stroke patients: preliminary results

Marco CAIMMI 1 , Andrea CHIAVENNA 1, Alessandro SCANO 1, Giulio GASPERINI 2, Chiara GIOVANZANA 2, Lorenzo MOLINARI TOSATTI 1, Franco MOLTENI 2

1 Institute of Industrial Technology and Automation (ITIA), Consiglio Nazionale delle Ricerche (CNR), Milan, Italy; 2 Villa Beretta Rehabilitation Centre, Costamasnaga, Lecco, Italy


BACKGROUND: Robotic rehabilitation is promising to promote function in stroke patients. The assist as needed training paradigm has shown to stimulate neuroplasticity but often cannot be used because stroke patients are too impaired to actively control the robot against gravity.
AIM: To verify whether a rehabilitation intervention based on robot fully assisted reaching against gravity (RCH) and hand-to-mouth (HTM) can promote upper-limb function in chronic stroke.
DESIGN: Cohort study.
SETTING: Chronic stroke outpatients referring to the robotic rehabilitation lab of a rehabilitation centre.
POPULATION: Ten chronic stroke patients with mild to moderate upper-limb hemiparesis.
METHODS: Patients underwent 12 sessions (3 per week) of robotic treatment using an end-effector robot Every session consisted of 20 minutes each of RCH and HtM; movements were fully assisted, but patients were asked to try to actively participate. The Fugl-Meyer Assessment (FMA) was the primary outcome measure; Medical Research Council and Modified Ashworth Scale were the secondary outcome measures.
RESULTS: All patients, but one, show functional improvements (FMA section A-D, mean increment 7.2±3.9 points, P<0.008).
CONCLUSIONS: This preliminary study shows that a robotic intervention based on functional movements, fully assisted, can be effective in promoting function in chronic stroke patients. These results are promising considering the short time of the intervention (1 month) and the time from the stroke event, which was large (27±20 months). A larger study, comprehensive of objective instrumental measures, is necessary to confirm the results.
CLINICAL REHABILITATION IMPACT: This intervention could be extended even to subacute stroke and other neurological disorders.

KEY WORDS: Rehabilitation - Robotics - Stroke - Upper extremity

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