Highlights
- •We developed a novel shoulder pain rehabilitation robot with 1 arm that was capable of performing abduction range of motion exercises within the limits of pain tolerance.
- •After a 4-week rehabilitation therapy using this robot, visual analog scale scores were significantly lower, and the abduction passive range of motion and disability caused by shoulder pain were improved.
- •Robotic-assisted shoulder pain rehabilitation therapy was beneficial for the treatment of hemiplegic shoulder pain.
Abstract
Objective
The purpose of this study was to investigate the therapeutic effects of a newly developed
shoulder robot on poststroke hemiplegic shoulder pain.
Design
Prospective, single-blind randomized controlled trial.
Setting
Inpatient department of a tertiary university hospital.
Participants
Hemiplegic shoulder pain patients (N=38) were consecutively recruited and randomly
assigned to an intervention or control group.
Interventions
A newly developed robot was designed to perform joint mobilization and stretching
exercises with patients lying in the supine position. Conventional physical therapy
directed at both improving upper extremity mechanics and reducing neurologic injury
was performed twice per day in both groups. In the intervention group, additional
robotic-assisted shoulder rehabilitation therapy was administered for 30 minutes per
day, 5 times per week for 4 weeks.
Main Outcome Measures
The visual analog scale was the primary outcome, and the pain-free passive range of
motion of the shoulder joint, the Korean version of the Shoulder Disability Questionnaire,
and ultrasonographic grades were the secondary outcomes. The outcomes were evaluated
at baseline (T0), postintervention (T1), and a 4-week follow-up (T2).
Results
Significant time and group interaction effects were found on the visual analog scale,
in the abduction passive range of motion, and on the Shoulder Disability Questionnaire
(F2,33=16.384, P=.002; F2,33=10.609, P=.012; F2,33=32.650, P=.008, respectively). Significantly higher improvements in these outcome measures
were observed in the intervention group than in the control group at T1 after post
hoc analysis (P<0.05, all). These improvements were sustained at T2 when the intervention group was
compared with the control group (P<.05, all).
Conclusions
A prototype shoulder rehabilitation robot as an adjuvant therapy improves hemiplegic
shoulder pain and self-reported shoulder-related disability.
Keywords
List of abbreviations:
CPM (continuous passive motion), HSP (hemiplegic shoulder pain), K-SDQ (Korean version of the Shoulder Disability Questionnaire), PROM (passive range of motion of the shoulder), RSRT (robotic-assisted shoulder rehabilitation therapy), VAS (visual analog scale)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: March 13, 2019
Footnotes
Supported by Wonkwang Institute of Clinical Medicine (2016-0669), Republic of Korea.
Disclosures: none.
Clinical Trial Registration No.: KCT0002696.
Identification
Copyright
© 2019 by the American Congress of Rehabilitation Medicine
