The Brunnstrom recovery scale has been widely used in clinics in Taiwan to evaluate motor recovery of stroke patients. However, since the psychometric characteristics of this scale have not been well established, this study was aimed at assessing its reliability and concurrent validity. Ninety-three consecutive hemiparetic stroke patients at Taichung Rehabilitation Hospital participated in this study. To assess inter-rater reliability, all subjects were randomly assessed by two of eight independent evaluators within three days. To assess intra-rater reliability, fifty-four patients were assessed within seven days but two days apart by the same raters. To demonstrate concurrent validity, the Brunnstrom recovery stages of the patients were correlated to patients' daily disability measured using the Barthel Index The Spearman correlation coefficients of inter-rater reliability ranged from 0.9276 to 0.9458, those for intra-rater reliability from 0.8020 to 0.9798. But the agreement percentages were lower (49.5%-64.5% for inter-rater groups, 40.0%-78.6% for intra-rater groups). The Spearman correlation coefficients for concurrent validity had a value of 0.620. These results indicate that the Brunnstrom recovery scale can be viewed as a reliable scale in motor recovery evaluation and may as a valid indicator of disability.
The Brunnstrom recovery scale has been widely used in clinics in Taiwan to evaluate motor recovery of stroke patients. However, since the psychometric characteristics of this scale have not been well established, this study was aimed at assessing its reliability and concurrent validity. Ninety-three consecutive hemiparetic stroke patients at Taichung Rehabilitation Hospital participated in this study. To assess inter-rater reliability, all subjects were randomly assessed by two of eight independent evaluators within three days. To assess intra-rater reliability, fifty-four patients were assessed within seven days but two days apart by the same raters. To demonstrate concurrent validity, the Brunnstrom recovery stages of the patients were correlated to patients' daily disability measured using the Barthel Index The Spearman correlation coefficients of inter-rater reliability ranged from 0.9276 to 0.9458, those for intra-rater reliability from 0.8020 to 0.9798. But the agreement percentages were lower (49.5%-64.5% for inter-rater groups, 40.0%-78.6% for intra-rater groups). The Spearman correlation coefficients for concurrent validity had a value of 0.620. These results indicate that the Brunnstrom recovery scale can be viewed as a reliable scale in motor recovery evaluation and may as a valid indicator of disability.