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Proximal Priority Versus Distal Priority Robotic Priming Effects in Patients With Chronic Stroke

Effects of Proximal Priority Versus Distal Priority Robotic Priming Technique With Rehabilitation Therapy of Upper-Limb Functions in Patients With Chronic Stroke

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04446273
Enrollment
72
Registered
2020-06-24
Start date
2020-07-03
Completion date
2026-06-30
Last updated
2026-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stroke

Keywords

Upper extremity rehabilitation, Proximal priority, Distal priority, Robotic therapy, Bilateral motor priming, Impairment-oriented training, Task-oriented training

Brief summary

This is a single-blind randomized comparative efficacy study involving 54-72 participants with chronic stroke. Participants will be randomized into proximal priority robotic group or distal priority robotic group and receive 18 intervention sessions (90 min/d, 3 d/wk for 6 weeks). The Fugl-Meyer Assessment Upper Extremity subscale, Medical Research Council Scale, Revised Nottingham Sensory Assessment, and Wolf Motor Function Test will be administered at baseline, after treatment, and at the 3-month follow-up. Two-way repeated-measures analysis of variance and the Chi-Square Automatic Interaction Detector Method will be used to examine the comparative efficacy and predictors of outcome, respectively, after intervention.

Detailed description

Background. The sequence of establishing proximal stability or function before facilitation of the distal body part has long been recognized in stroke rehabilitation practice but lacks scientific evidence. This study plans to examine the effects of proximal priority robotic priming and impairment-oriented training (PRI) and distal priority robotic priming and impairment-oriented training (DRI). Methods. This is a single-blind randomized comparative efficacy study involving 54-72 participants with chronic stroke. Participants will be randomized into PRI or DRI groups and receive 18 intervention sessions (90 min/d, 3 d/wk for 6 weeks). The Fugl-Meyer Assessment Upper Extremity subscale, Medical Research Council Scale, Revised Nottingham Sensory Assessment, and Wolf Motor Function Test will be administered at baseline, after treatment, and at the 3-month follow-up. Two-way repeated-measures analysis of variance and the Chi-Square Automatic Interaction Detector Method will be used to examine the comparative efficacy and predictors of outcome, respectively, after PRI and DRI.

Interventions

DEVICEBi-Manu-Track

The PRI and DRI protocol provide robotic training for 45 minutes and impairment-oriented training for 45 minutes. The PRI group will start from the Bi-Manu-Track proximal mode (i.e., forearm) and then the Bi-Manu-Track distal mode (i.e., wrist). The DRI group will start from the Bi-Manu-Track distal mode (i.e., wrist) and then the Bi-Manu-Track proximal mode (i.e., forearm).In every session of robotic training, the patient will practice bilateral passive range of motion exercise, in which affected upper extremity is assisted by the unaffected side, and bilateral active range of motion exercise. Robotic training will be followed by impairment-oriented training.

Sponsors

National Taiwan University Hospital
Lead SponsorOTHER
National Health Research Institutes, Taiwan
CollaboratorOTHER
Ministry of Science and Technology, Taiwan
CollaboratorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Initial and outcome assessments will be administered by a well-trained and certified occupational therapist who is blinded to the group assignment, study hypotheses, and intervention of the patients.

Intervention model description

Participants will be randomized into the proximal priority robotic priming and impairment-oriented training or the distal priority robotic priming and impairment-oriented training groups and receive 18 intervention sessions

Eligibility

Sex/Gender
ALL
Age
20 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* The inclusion criteria are age between 20 and 75 years old, more than 3 months after the onset of a first unilateral ischemic or hemorrhagic stroke, moderate to severe UE motor impairment (i.e., total UE score of the Fugl-Meyer Assessment \[FMA\] score between 18 and 56), no severe spasticity in any joints of the affected arm (modified Ashworth Scale score \<3 in any of the affected shoulder, elbow, wrist, and fingers), able to follow instructions (Mini-Mental State Examination total score \>24), no UE fractures in the past 3 months, and not simultaneously participating in other medication or rehabilitation studies.

Exclusion criteria

* The

Design outcomes

Primary

MeasureTime frameDescription
Fugl-Meyer AssessmentFugl-Meyer Assessment will be administered to participants at baseline.Fugl-Meyer Assessment is used to assess motor impairment of body function, including ranges of motion of the upper extremity (UE) joints, and grasping, coordination, and speed of UE. movement.
Medical Research Council ScaleMedical Research Council Scale will be administered to participants at baseline.Medical Research Council Scale is used to assess muscle power of the affected upper extremity joints.

Secondary

MeasureTime frameDescription
The ABILHAND QuestionnaireThe ABILHAND Questionnaire will be administered to participants at baseline.The ABILHAND Questionnaire is an inventory of 23 manual activities on which the patient provides his or her self-perceived performing difficulty on a 3-level scale (impossible, difficult, easy).
The Stoke Impact Scale 3.0The Stoke Impact Scale 3.0 will be administered to participants at baseline.The Stoke Impact Scale 3.0 is a 59-item questionnaire that measures perceived disability and health-related quality of life after stroke in eight domains: strength, hand function, activities of daily living/instrumental activities of daily living, mobility, communication, emotion, memory/thinking, and participation/role function.
The Stroke Self-Efficacy QuestionnaireThe Stroke Self-Efficacy Questionnaire will be administered to participants at baseline.The Stroke Self-Efficacy Questionnaire is a 13-item questionnaire to evaluate self-efficacy in functioning after stroke.
The Wolf Motor Function TestThe Wolf Motor Function Test will be administered to participants at baseline.The Wolf Motor Function Test is used to assess functional motor ability of the upper extremity with 15 functional tasks.
The Montreal Cognitive AssessmentThe Montreal Cognitive Assessment will be administered to participants at baseline.The Montreal Cognitive Assessment is a cognitive screening assessment that is used to measure several cognitive domains, which include working memory, delayed recall, visuospatial abilities, executive functions, attention, concentration, language, and orientation to time and place. The total score ranges from 0 to 30. One extra point is added to adjust the total score for participants who received less than 12 years of education.
The Chedoke Arm and Hand Activity InventoryThe Chedoke Arm and Hand Activity Inventory will be administered to participants at baseline.The CAHAI evaluates the functional ability of the affected arm and hand to perform tasks after stroke. The 13 items contained in the CAHAI represent bimanual meaningful everyday activities and are made up a variety of the upper-extremity characteristics, including strength, dexterity, coordination, and grasp. The 7-point activity scale is used in the CAHAI, where 1 indicates "performing less than 25% of the effort to complete the task" and 7 indicates "the participants' affected upper extremity is able to complete the task competently independently." The reliability and validity of the CAHAI have been ascertained in stroke.

Countries

Taiwan

Contacts

CONTACTKehchung Lin, ScD
kehchunglin@ntu.edu.tw+886233668180
PRINCIPAL_INVESTIGATORKeh-chung Lin, ScD

National Taiwan University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026