Regional Hyper-acute Rehabilitation Unit, Northwick Park Hospital, London North West Healthcare NHS Trust, London, UK.
Department of Palliative Care, Policy and Rehabilitation, Faculty of Nursing, Midwifery and Palliative Care, King's College London, London, UK.
Disabil Rehabil. 2021 Apr;43(7):976-987. doi: 10.1080/09638288.2019.1643933. Epub 2019 Jul 22.
The aim of this study is to evaluate the properties of the Leg Activity measure according to COnsensus-based Standards for the selection of health Measurement INstruments.
Participants were assessed at baseline, one day, 6 weeks and 12 weeks, following treatment for leg spasticity with botulinum toxin and physical interventions.
In stage 1, 64 participants were recruited to evaluate the initial psychometric properties of Leg Activity measure. In stage 2, 100 additional participants were recruited, to evaluate the scaling properties. Total sample of 164 participants was used. Construct validity was supported for "passive function", "active function" and "impact on quality of life". Cronbach's alpha was 0.86, 0.97 and 0.87 respectively for the scales. Item level test-retest agreement ranged from 91-97% (Kappa 0.75-0.95). Following treatment for spasticity ( = 64), the Leg Activity measure "passive function" and "impact on life" scales were responsive to change. Principal components analysis confirmed the constructs and a unidimensional Rasch Partial Credit Model was subsequently established for each scale. Transformation to an interval scale was achieved. Using the ordinal-to-interval conversion tables, parametric statistical analysis may be used.
The study provides support for the Leg Activity measure being valid, reliable and responsive.Implications for rehabilitationThe Leg Activity measure is the only published self-report measure in the current literature that addresses passive and active function as well as impact on quality of life, of the paretic leg in a comprehensive manner.The initial evaluation of Leg Activity measure psychometric properties, in relation to the COnsensus-based Standards for the selection of health Measurement INstruments checklist and Medical Outcomes Trust Quality Criteria, supports its measurement properties for clinical and research use.The Leg Activity measure as a valid, reliable and responsive tool for the evaluation of treatment in leg spasticity including condition specific (spasticity) quality-of-life.
本研究旨在根据基于共识的健康测量仪器选择标准评估 Leg Activity 测量的特性。
参与者在接受肉毒毒素和物理干预治疗腿部痉挛后，在基线、第 1 天、第 6 周和第 12 周进行评估。
在第 1 阶段，招募了 64 名参与者评估 Leg Activity 测量的初始心理测量特性。在第 2 阶段，招募了 100 名额外的参与者评估定标特性。总共 164 名参与者的样本用于研究。“被动功能”、“主动功能”和“对生活质量的影响”的结构效度得到了支持。量表的克朗巴赫α值分别为 0.86、0.97 和 0.87。项目水平的测试-重测一致性在 91-97%之间（Kappa 值为 0.75-0.95）。痉挛治疗后（n=64），Leg Activity 测量的“被动功能”和“对生活的影响”量表对变化有反应。主成分分析证实了这些结构，随后为每个量表建立了一个单维 Rasch 部分信用模型。实现了向区间量表的转换。使用有序到区间的转换表，可以进行参数统计分析。
该研究为 Leg Activity 测量的有效性、可靠性和反应性提供了支持。
Leg Activity 测量是目前文献中唯一发表的自我报告测量，全面评估了瘫痪腿的被动和主动功能以及对生活质量的影响。
根据基于共识的健康测量仪器选择标准清单和医疗成果信托质量标准，对 Leg Activity 测量心理测量特性的初步评估支持其在临床和研究中的测量特性。
Leg Activity 测量是一种有效的、可靠的、有反应的工具，可用于评估腿部痉挛的治疗效果，包括特定于病情的（痉挛）生活质量。
