Effects of RAT in Sequential Combination With CIT in Stroke Rehabilitation

Effects of Robot-Assisted Therapy in Sequential Combination With Constraint-Induced Therapy in Stroke Rehabilitation

The findings of this project will contribute to the understanding of a comprehensive probe for investigation of the effects of monotherapy versus combination rehabilitation intervention after stroke, including the topics of possible underlying mechanisms of motor recovery as well as the beneficial and adverse effects of intense rehabilitation therapy, prognostic factors of the outcomes, and clinimetric properties of the instruments. The overall findings of this project will be significant in the era of knowledge translation and guide the development of innovative and effective interventions for individualized stroke rehabilitation.

The overall goal of this research project will be to provide scientific evidence of the robot-assisted therapy in sequential combination with distributed constraint-induced therapy (RT + dCIT)versus monotherapy of the robot-assisted therapy (RT), distributed constraint-induced therapy (dCIT), and a dose-matched control therapy (DMCT)in stroke rehabilitation. The specific aims of this proposed research are identified as follows:

1. The investigators will investigate the treatment effects of RT + dCIT compared to RT, CIT, and DMCT on motor ability, muscle function, sensory function, daily performance, real-world arm activity, quality of life, and motor control variables at before treatment, midterm assessment, and after treatment. In addition to study of treatment benefits, physiological responses as the potential adverse effects including post-exertional fatigue, post-exertional pain, and a biomarker of oxidative stress will be also examined in this project. The investigators hypothesized that the therapeutic regimen combining RT with dCIT will contribute to more significantly reduction in impairment and disability for stroke patients than the other intervention groups.
2. The investigators will investigate if the clinical characteristics or behavioral markers of stroke patients will influence the outcomes after interventions. The proposed potential predictors will be chronicity, side of lesion, muscle tone, motor ability of distal part of upper limb, and amount of affected hand use.
3. The investigators will examine whether the improved scores after each treatment reach clinically important changes in order to establish the clinical significance relevant for individualized medicine. The investigators will also assess and compare the clinimetric properties (e.g., validity, responsiveness, minimal detectable change, and minimal clinically important difference) of the rehabilitation outcomes to inform selection of instruments.

Inclusion Criteria:

• 6 months onset from a first-ever unilateral stroke
• An initial UL subsection of the Fugl-Meyer Assessment score of 20 to 50 indicating moderate and moderate to severe UL movement impairment
• No balance problems sufficient to compromise safety when wearing the study's constraint device
• No excessive spasticity in any of the joints of the affected UL (modified Ashworth scale ≤ 3)
• Without upper limb fracture within 3 months
• Be able to follow study instructions and perform study tasks (Mini Mental State Examination ≥ 24)
• Willing to provide written informed consent

Exclusion Criteria:

• Exhibit physician-determined major medical problems or poor physical conditions that would interfere with participation
• Excessive pain in any joint that might limit participation