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Trial registered on ANZCTR
Registration number
ACTRN12611001077954
Ethics application status
Approved
Date submitted
8/02/2011
Date registered
18/10/2011
Date last updated
18/10/2011
Type of registration
Retrospectively registered
Titles & IDs
Public title
Motor learning after stroke
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Scientific title
Comparison between Motor learning in stroke and healthy subjects
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Secondary ID [1]
253566
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Nil
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Universal Trial Number (UTN)
U1111-1119-3625
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
subjects post stroke
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Condition category
Condition code
Stroke
259275
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0
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Ischaemic
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Motor learning design: practice of 50 trials (in the same day - duration of 30 minutes of practice - this 30 minutes duration is the total time to perform all 50 trials) with a maze task with paper and pen. The purpose of the task is to find out the exit from the begining of the maze, considering that there is only one way to find the exit from the entrance. All the subjects, including the stroke patients performed 50 trials of the maze task and time was the variable measured. This phase was nominated acquisition phase in which the subject practice the task to acquire a better performance. Then, they were retested in diferent conditions: two retention tests (after 15 minutes and 3 days) and also transference test - after the second retention test (considering some changes in the maze, so that they needed to adapt their performances to obtain sucess in the task. All the data was analysed considering blocks of 5 trials, so that in acquisition phase there was 10 blocks of 5 trials, and in the tests (retention- 15 minutes and 3 days later - and transference) there 2 blocks of 5 trials each.
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Intervention code [1]
257996
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Not applicable
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Comparator / control treatment
The same intervention applied to the control group (healthy subjects)
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Control group
Active
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Outcomes
Primary outcome [1]
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total time to complete the maze task (in seconds)
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Assessment method [1]
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Timepoint [1]
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According to the phases established (acquisition phase and retention and transfer test) each of these phases were composed by trials in which the subjects performed the task. So timepoint (for analysis purposes) was defined: last block of 5 trials in acquisition phase, and the blocks of 5 trials from the retention and transfer tests.
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Primary outcome [2]
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total time to complete the maze task (in seconds)
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Assessment method [2]
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Timepoint [2]
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According to the phases established (acquisition phase and retention and transfer test) each of these phases were made by trials in which the subjects performed the task. So timepoint (for analysis purposes) was defined: last block of 5 trials in acquisition phase, and the blocks of 5 trials from the retention and transfer tests.
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Secondary outcome [1]
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Nil
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Assessment method [1]
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Timepoint [1]
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Nil
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Eligibility
Key inclusion criteria
Chronic stroke, single ictus, MEMS at least 23 points, no comprehension disorder, right handed.
Healthy group was matched by age and gender with the experimental group, so there was no key inclusion criteria because they wre age-gender matched to the experimental group.
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Minimum age
35
Years
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Maximum age
80
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Aphasia, clinical instability, other neurological condition (i.e. Parkinson Disease, Alzheimer).
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Study design
Purpose
Screening
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Duration
Longitudinal
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Selection
Case control
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
11/06/2009
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
40
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
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Brazil
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State/province [1]
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Sao Paulo
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Funding & Sponsors
Funding source category [1]
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Self funded/Unfunded
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Name [1]
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Address [1]
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Country [1]
258454
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Brazil
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Primary sponsor type
University
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Name
Sao Paulo University
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Address
Av Prof Mello Moraes 65 Cidade Universitaria Sao Paulo-SP CEP 05508-030
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Country
Brazil
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Secondary sponsor category [1]
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University
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Name [1]
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United Metropolitan University
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Address [1]
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Av Santo Amaro 1239 Vila Nova Conceicao Sao Paulo-SP CEP 04506-000
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Country [1]
257597
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Brazil
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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University of the City of Sao Paulo Ethics Committee
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Ethics committee address [1]
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Rua Cesareo Galeno 448- Vila Carrao Sao Paulo-SP CEP 03071-000
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Ethics committee country [1]
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Brazil
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Date submitted for ethics approval [1]
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12/11/2008
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Approval date [1]
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02/03/2009
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Ethics approval number [1]
260435
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13363343
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Summary
Brief summary
BACKGROUND: Stroke is the main disease which leads to disability in several countries in the world and it is caused by interruption of blood flow to brain, rupture of a blood vessel or occlusion with a clot. This interruption cause much damage to nervous tissue varying according to the lesioned area and extension. Recent studies indicate that, in regards to the local of the lesion, stroke subjects have difficulty on motor skills learning when compared to healthy subjects. OBJECTIVE: Investigating motor skill learning in subjects after stroke and comparing them to healthy subjects. METHOD: 40 subjects participated of this study divided in two groups: experimental group (EG) and control group (CG), where both groups performed a maze task with pen and paper. This study consisted of acquisition phase (AQ) and transfer tests (TR) and retention at short (R1) and long term (R2). Dependent variable was total time for performing this action. RESULTS: Intragroup analysis showed both groups improved with practice. Intergroup analysis (CGxEG) detected significant differences in all learning tests, indicating inferiority of EG when compared to CG. CONCLUSION: Post-stroke subjects are able to learn a motor skill, but they reached an inferior performance when compared to CG.
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Trial website
None
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Trial related presentations / publications
None
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Camila Torriani-Pasin
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Address
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Av Prof Melo Moraes , 65 - Cidade Universitaria Sao Paulo-SP CEP 05508-030
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Country
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Brazil
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Phone
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55 11 32973954
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Camila Torriani-Pasin
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Address
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Av Prof Melo Moraes , 65 - Cidade Universitaria Sao Paulo-SP CEP 05508-030
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Country
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Brazil
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Phone
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55 11 32973954
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Fax
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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