Finnoff Jonathan T, Peterson Valerie J, Hollman John H, Smith Jay
Department of Physical Medicine and Rehabilitation, College of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
PM R. 2009 Jan;1(1):50-4. doi: 10.1016/j.pmrj.2008.06.002. Epub 2008 Dec 10.
The purpose of this study was to determine the intrarater and interrater reliability of the Balance Error Scoring System (BESS).
A prospective observational study.
Academic sports medicine center.
Three scorers participated in this study.
Three scorers experienced in using the BESS viewed a videotape depicting 30 consecutive individuals performing the BESS stance positions. The 3 scorers independently scored each of the 30 videotaped individuals using the BESS scoring criteria. A week later, the same 3 subjects viewed and scored the videotape again.
The interrater and intrarater reliability of the BESS was determined using intraclass correlation coefficients (ICC), reported with 95% confidence intervals. The minimum detectible change was also determined.
The interrater and intrarater reliability ICCs for the total BESS scores were 0.57 and 0.74, respectively. The interrater reliability ICCs for the 6 different stance positions were between 0.44 and 0.83, while the intrarater reliability ICCs were between 0.50 and 0.88. The interrater and intrarater minimum detectible change for the total BESS score were 9.4 and 7.3 points, respectively.
This study suggests that certain subcategories of the BESS have sufficient reliability to be used in the evaluation of postural stability but that the total BESS score is not reliable. In addition, a change in score of greater than 9.4 (interrater) or 7.3 (intrarater) points is required before the change in postural stability can be attributed to the balancer rather than to the scorer.
本研究旨在确定平衡误差评分系统（BESS）的评分者内和评分者间信度。
前瞻性观察研究。
学术性运动医学中心。
三名评分者参与了本研究。
三名有使用BESS经验的评分者观看了一段录像带，录像中连续30名个体进行BESS站立姿势。这三名评分者使用BESS评分标准对30名录像个体分别独立评分。一周后，同样的三名评分者再次观看并评分该录像带。
使用组内相关系数（ICC）确定BESS的评分者间和评分者内信度，并报告95%置信区间。还确定了最小可检测变化。
BESS总分的评分者间和评分者内信度ICC分别为0.57和0.74。6种不同站立姿势的评分者间信度ICC在0.44至0.83之间，而评分者内信度ICC在0.50至0.88之间。BESS总分的评分者间和评分者内最小可检测变化分别为9.4分和7.3分。
本研究表明，BESS的某些子类别具有足够的信度可用于姿势稳定性评估，但BESS总分不可靠。此外，在姿势稳定性的变化可归因于平衡者而非评分者之前，评分变化需大于9.4分（评分者间）或7.3分（评分者内）。
