Does the use of a constraint mitten, to encourage use of the hemiplegic upper limb, improve arm function in adults with sub-acute stroke?

Burns, A., Burridge, J.H., Pickering, R.M. and Turk, R. (2007) Does the use of a constraint mitten, to encourage use of the hemiplegic upper limb, improve arm function in adults with sub-acute stroke? Clinical Rehabilitation, 21 (10), 895-904. (doi:10.1177/0269215507079144).

Abstract

Objective: To evaluate the effect of a constraint mitten, worn on the unaffected upper limb, on the arm and hand function of participants with hemiplegia. To estimate the sample size for a future trial.

Design: An A-B-A design.

Setting: Inpatient, outpatient and domiciliary setting.

Subjects Ten participants with mild to moderate residual upper limb hemiparesis, between 1 and 12 months post stroke.

Intervention: Following a two-week baseline period, 10 participants were advised to wear the constraint mitten on the unaffected upper limb for 9 waking hours/day for two weeks to encourage use of the hemiplegic arm. Existing levels of therapy continued during the whole study.

Main measures: The primary outcome measure was the Action Research Arm Test. At the end of the intervention phase participants completed a questionnaire. Participants also recorded their daily use of the constraint mitten during the intervention phase.

Results: A mean improvement in the Action Research Arm Test score of 4.0 points (95% confidence interval 1.7 to 6.2; P=00.016) was found during the intervention phase after correcting for background recovery. Mean compliance was 6.7 hours/day (74%), 90% of participants were positive about the intervention and would recommend the treatment to other stroke survivors, although 50% were relieved to stop the mitten-wearing phase.

Conclusions: The use of a constraint mitten in upper limb stroke rehabilitation may be a useful adjunct to enhance functional recovery with minimal additional resources. The positive findings from this preliminary study warrant a larger randomized controlled trial of 200 participants in total.

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Contributors

Author: J.H. Burridge

Author: R. Turk

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