Research Question
The two questions to be answered by this study are: 1) To what extent does game-based CI therapy (with the Transfer Package) increase use of the more affected upper extremity from inpatient rehabilitation through subacute follow-up.
2\) What is the clinical effectiveness of distributed gaming CI therapy for improving motor function of the more affected upper extremity at 3 months post-discharge.
Background
Constraint-Induced (CI) Movement therapy is arguably the best treatment paradigm to pilot throughout the continuum of care because it is established as the most empirically-supported intervention in subacute and chronic stroke and is more effective than standard care in acute stroke when lower duration/intensity protocols are utilized. CI therapy has strong evidence of increased effectiveness relative to standard care in the only positive definitively-powered upper extremity trial. A limitation of the acute CI therapy literature is that most studies omitted the most essential component of CI therapy: The Transfer Package of behavioral techniques that promotes carry-over of training to daily activities. In absence of the Transfer Package, everyday use of the weaker arm does not substantially improve and structural brain plasticity and quality of life gains are not realized. Early studies also show that any treatment advantage of CI therapy acutely is not maintained in follow-up, suggesting that maintenance therapy post-discharge is likely essential for altering the recovery trajectory.
Clinical Significance
This work will have a positive impact on the field of rehabilitation because it offers a solution to the main barriers of delivering distributed empirically-based treatment within an inpatient rehabilitation setting. By providing a paradigm for delivering distributed upper extremity practice, the product of this work has the potential to improve post-stroke health outcomes, lower-cost, and maintain the continuity of treatment from inpatient rehabilitation to community care.
Methods
The project will involve participatory action research methods to identify potential barriers to implementation of this new intervention within the VA and to refine the treatment approach to meet the needs of an inpatient population. A focus group will involve at least 3 patients who are currently on the inpatient rehabilitation unit (or recently discharged), their families, and occupational therapy/physical therapy (OT/PT)/recreational therapy staff. This meeting will serve to finalize the treatment protocol for this study. Areas that will be addressed will include the "dosing" schedule for the game-based intervention and needed adaptations to the CI therapy Transfer Package techniques (described below) to promote maximal carry-over from trained activities to everyday use of the weaker upper extremity. Any needed modifications to the technology platform (e.g. data storage) will also be made to comply with the VA's regulatory policies regarding adoption of new technology.
Up to 24 stroke survivors with upper extremity hemiparesis will be enrolled. Participants have the option of taking the gaming system home after discharge.
Gaming CI Therapy (Approximate Schedule)
1. 30 total inpatient hours OT/PT:
* One 30-minute session to teach game play
* 4.5 hours devoted to Transfer Package
* Remainder time spent in usual care activities
2. 14 hours independent game play while inpatient
3. 18 hours independent game play following discharge (30 min, 3 times weekly) over and above standard care (will be documented as covariate)
4. Optional use of smart watch with biofeedback
This study will be conducted at the Minneapolis Veterans Affairs Medical Center (MVAMC). The MVAMC is home to the Stroke Specialty Program (SSP), a Commission on Accreditation of Rehabilitation Facilities (CARF) accredited program. The SSP tailors rehabilitation for survivors of any stroke mechanism (hemorrhagic, occlusive, etc.) affecting any part of the brain. Services can be adapted for survivors with cognitive challenges. The SSP has averaged 41 admissions in the past three years, though 2017 has projected admissions over 50. Retrospective chart review demonstrates the primary diagnosis resulting from stroke to be hemiplegia in approximately half of the admissions. Most patients (85%) are older than 60 years, predominantly Caucasian (85%) or African-American (10%) and male (98%).
Study participants will be patients enrolled in the MVAMC Stroke Specialty Program. Prospective participants will be screened by study staff. A retrospective chart review will be conducted to review outcomes of patients who underwent stroke rehabilitation at the Minneapolis VA but did not receive the study intervention. These subjects will serve as a retrospective control.
