Claesson Ingrid M, Grooten Wilhelmus Ja, Lökk Johan, Ståhle Agneta
a Department of Physical Therapy , Karolinska University Hospital , Stockholm , Sweden.
b Department of Neurobiology, Care Sciences and Society , Karolinska Institutet , Stockholm , Sweden.
Physiother Theory Pract. 2017 Jun;33(6):490-496. doi: 10.1080/09593985.2017.1318424. Epub 2017 May 8.
There is a need for a valid assessment test of balance in early Parkinson's disease (PD).
To validate the Bäckstrand Dahlberg Liljenäs Balance Scale (BDL), a test of balance performance constructed to assess mild to moderate balance disability due to neurological disease, for use in persons with early PD.
Cross-sectional psychometric evaluation study from a convenience sample community-dwelling persons with PD (n = 28).
The BDL was validated using the Berg Balance Scale (BBS), the motor part of the Unified Parkinson's Disease Rating Scale (mUPDRS), the Timed Up and Go (TUG) and Timed Up and Go-cognition (CTUG). Correlations were calculated by Spearman's rank correlation coefficient (rho). Rasch analyses were used to test the internal construct of the BDL. The result from the BDL was compared to a healthy reference group.
The correlation between the BDL and the BBS (rho = 0.703) was high positive, while for mUPDRS (rho = -0.280), TUG (rho = -0.321) and CTUG (rho = -0.361) the correlations with the BDL were negligible to low negative. The Rasch analyses for the BDL showed a good distribution of the task difficulties with neither ceiling nor floor effect among individual measures. There was a significant difference (p = 0.03) in performance of the BDL between the PD group and the healthy reference group.
The BDL Balance Scale can be considered a valid clinical assessment test when evaluating balance training interventions in persons with early PD. It can be recommended as an outcome measure in clinical practice and in clinical research within this population.
早期帕金森病（PD）患者需要一种有效的平衡评估测试。
验证Bäckstrand Dahlberg Liljenäs平衡量表（BDL），该量表用于评估因神经疾病导致的轻度至中度平衡障碍，以用于早期PD患者。
对一个便利样本中的社区居住PD患者（n = 28）进行横断面心理测量评估研究。
使用伯格平衡量表（BBS）、统一帕金森病评定量表的运动部分（mUPDRS）、计时起立行走测试（TUG）和计时起立行走-认知测试（CTUG）对BDL进行验证。通过斯皮尔曼等级相关系数（rho）计算相关性。使用拉施分析来测试BDL的内部结构。将BDL的结果与健康对照组进行比较。
BDL与BBS之间的相关性（rho = 0.703）为高度正相关，而与mUPDRS（rho = -0.280）、TUG（rho = -0.321）和CTUG（rho = -0.361）与BDL的相关性可忽略不计至低度负相关。BDL的拉施分析显示任务难度分布良好，各单项测量中既无天花板效应也无地板效应。PD组与健康对照组在BDL表现上存在显著差异（p = 0.023）。
在评估早期PD患者的平衡训练干预时，BDL平衡量表可被视为一种有效的临床评估测试。在该人群的临床实践和临床研究中，可推荐将其作为一项结局指标。
