Strand Liv Inger, Moe-Nilssen Rolf, Ljunggren Anne Elisabeth
Section of Physiotherapy Science, Department of Public Health and Primary Health Care, Faculty of Medicine, University of Bergen, Ulriksdal 8c, Bergen, Norway.
Phys Ther. 2002 Dec;82(12):1213-23.
Activities that require mobility of the trunk are often limited in patients with back problems. For this study, 5 tests (Sock Test, Pick-up Test, Roll-up Test, Fingertip-to-Floor Test, and Lift Test), all requiring sagittal-plane mobility, were performed, and the test scores were combined by the authors in a scale called the Back Performance Scale (BPS) to obtain a performance measure of mobility-related activities.
The participants were 288 patients with long-lasting musculoskeletal pain.
The basis for constructing a sum scale (BPS), discriminative ability, and responsiveness to important change of the BPS were examined in patients with back pain.
Bivariate correlations (rs) of scores among tests ranged from.27 to.50, and correlations between separate tests and the BPS ranged from.63 to.73. The Cronbach alpha was.73. The BPS sum scores discriminated between patients with different return to work status and were higher for back pain than for other musculoskeletal pain. Responsiveness was high (effect size=1.33) in patients who had changed and low (effect size=0.31) in patients who had not changed, using return to work as an external indicator of important change. The BPS was more responsive than the separate tests.
The BPS appears to measure an aspect of physical performance that is of clinical importance to patients with back pain.
对于背部有问题的患者而言，需要躯干活动的行为往往受到限制。在本研究中，进行了5项均需要矢状面活动能力的测试（穿袜子测试、拾物测试、卷身测试、指尖触地测试和提举测试），作者将这些测试分数合并为一个名为背部功能量表（BPS）的量表，以获得与活动能力相关行为的功能测量结果。
参与者为288名患有长期肌肉骨骼疼痛的患者。
对背痛患者的总分量表（BPS）的构建基础、区分能力以及对重要变化的反应性进行了研究。
各项测试分数之间的双变量相关性（rs）在0.27至0.50之间，单项测试与BPS之间的相关性在0.63至0.73之间。克朗巴赫α系数为0.73。BPS总分能够区分不同工作恢复状态的患者，背痛患者的分数高于其他肌肉骨骼疼痛患者。以恢复工作作为重要变化的外部指标，发生变化的患者反应性较高（效应量=1.33），未发生变化的患者反应性较低（效应量=0.31）。BPS的反应性高于单项测试。
BPS似乎能够测量对背痛患者具有临床重要性的身体功能方面。
