Ratanapat Chanubol MD*, Parit Wongphaet MD**, Napapit Chavanich OT**, Waree Chira-Adisai MD**, Patcharawimol Kuptniratsaikul MD**, Chattaya Jitpraphai MD**
Affiliation : * Department of Rehabilitation Medicine, Prasat Neurological Institute, Bangkok, Thailand ** Department of Rehabilitation Medicine, Ramathibodhi Hospital, Mahidol University, Bangkok, Thailand
Objective : The objective of the present study was to determine the correlation between the scores of the Action Research Arm
Test (ARAT) and the Box and Block Test (BBT), commonly used tests of upper extremity (UE) function.
Material and Method: Forty first-time subacute stroke patients without severe cognitive, language, or motion impairment
were administered the ARAT and BBT before and after participating in a 4-week rehabilitation program. Their scores were
analyzed by Wilcoxon sign-rank testing and by Spearman’s rank correlation, standardized response mean, and scatter-plot
analysis.
Results : The ARAT and the BBT scores have a high level of responsiveness to change and are highly correlated. The BBT has
a floor effect compared with the ARAT while the ARAT has a small ceiling effect compared with the BBT.
Conclusion : The ARAT and the BBT scores have excellent concurrent validity and are highly responsive to change, indicating
that the BBT can effectively assess UE function.
Keywords : Action research arm test, Box and block test, Stroke, Upper extremity function
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