Vanti Carla, Villafañe Jorge H, Branchini Mirco, Giacobazzi Mauro, Ruggeri Martina, Negrini Stefano, Guccione Andrew, Pillastrini Paolo
Department of Biomedical and Neuromotor Sciences (DIBINEM).
IRCCS Fondazione Don Carlo Gnocchi, Milan.
Int J Rehabil Res. 2018 Mar;41(1):28-34. doi: 10.1097/MRR.0000000000000256.
Instruments to measure movement abilities from a patient's perspective are generally unavailable across diverse cultures and languages. The aim of this study was to translate, culturally adapt, and validate the Italian version of the Outpatient Physical Therapy Improvement in Movement Assessment Log (OPTIMAL) confidence scale. This study was an observational multicenter study. The Italian version of the OPTIMAL confidence scale (OPTIMAL-I) was developed following forward-backward translation and pretesting with a small group of patients. Reliability was measured by internal consistency (Cronbach α), and a factor analysis was carried out to explore the internal structure. Convergent validity was measured by comparing the OPTIMAL-I with the Italian version of the Activities-specific Balance Confidence (ABC-I). The process for obtaining the OPTIMAL-I required 3 months and it was administered to 290 outpatients in two different rehabilitation clinics. OPTIMAL-I showed high acceptability, high internal consistency (Cronbach's α=0.963), and high test-retest stability (intraclass correlation coefficient=0.92, P=0.001). Convergent validity with ABC-I was also high (r=0.56-0.86; P<0.001). Using factor analysis, we found evidence for a four-factor structure related to 'confidence with high-loads lower-extremity mobility', 'confidence with low-loads lower-extremity mobility', 'confidence with upper-extremity mobility', and 'confidence with trunk mobility' that explained 78.83% of the total variance. The OPTIMAL-I showed good psychometric properties and its use can be recommended for measuring confidence in Italian patients receiving physical therapy services. Future studies should focus on divergent validity and construct validity.
从患者角度测量运动能力的工具在不同文化和语言环境中通常难以获得。本研究旨在翻译、进行文化调适并验证门诊物理治疗运动评估日志（OPTIMAL）信心量表的意大利语版本。本研究为观察性多中心研究。OPTIMAL信心量表的意大利语版本（OPTIMAL-I）是在进行正反翻译并对一小群患者进行预测试后制定的。通过内部一致性（Cronbach α）测量信度，并进行因子分析以探索内部结构。通过将OPTIMAL-I与特定活动平衡信心量表的意大利语版本（ABC-I）进行比较来测量收敛效度。获得OPTIMAL-I的过程耗时3个月，并在两家不同的康复诊所对290名门诊患者进行了施测。OPTIMAL-I显示出高可接受性、高内部一致性（Cronbach's α = 0.963）和高重测稳定性（组内相关系数 = 0.92，P = 0.001）。与ABC-I的收敛效度也很高（r = 0.56 - 0.86；P < 0.001）。通过因子分析，我们发现了一个四因素结构的证据，该结构与“对高负荷下肢活动的信心”、“对低负荷下肢活动的信心”、“对上肢活动的信心”和“对躯干活动的信心”相关，解释了总方差的78.83%。OPTIMAL-I显示出良好的心理测量特性，可推荐用于测量接受物理治疗服务的意大利患者的信心。未来的研究应关注区分效度和结构效度。
