The Leg Activity measure, a new measure of passive and active function and impact on quality of life; informing goal setting and outcome evaluation in leg spasticity.

PURPOSE: Application of the Leg Activity measure in acquired brain injury spasticity intervention to identify areas for goal setting prior to treatment, document the treatments applied and evaluate outcome. METHODS: A prospective cohort from three specialist spasticity management centres was used. Primary outcome measures were, Leg Activity Measure, Modified Ashworth Scale and Goal Attainment Scaling - light. Measurement was completed at baseline, 6 and 12 weeks. The Leg-Therapy recording Schedule was used to record physical therapy intervention. RESULTS: Participants (n = 64) included had a mean age of 51 (18-84) years, half (n = 32) were men. Significant changes were demonstrated over the 12-week period in MAS (Xr2 = 35.4; p < 0.001), the Leg Activity passive function scale (Xr2 = 32.2; p < 0.001) (e.g., improved ease of dressing, hygiene) and Leg Activity impact on quality of life scale (Xr2 = 32.2; p < 0.001). No change was identified in the Leg Activity active function scale. Goal achievement was demonstrated at 6 weeks and further improved at 12 weeks (Xr2 = 65.7; p < 0.001) and was associated with change in the relevant scale. Physical interventions were captured at each time-point. DISCUSSION: Significant gains in passive-function and quality-of-life were recorded by the Leg Activity measure scales at 6 weeks, and at 12 weeks post-injection in the context of on-going physical treatment, primarily by self-management.Implications for rehabilitationThe Leg Activity measure is able to detected changes in passive function and impact on quality of life.Measurement of change in active function is also likely to be detected, but was not seen in the cohort studied.The Leg Activity measure was effective in this study in identifying problem areas to enable setting of treatment goals and planning of treatment intervention.

Psychometric evaluation of the leg activity measure (LegA) for outcome measurement in people with brain injury and spasticity.

PURPOSE: 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. METHOD: Participants were assessed at baseline, one day, 6 weeks and 12 weeks, following treatment for leg spasticity with botulinum toxin and physical interventions. RESULTS: 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 (n = 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. CONCLUSION: 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.

Categorisation of goals set using Goal Attainment Scaling for treatment of leg spasticity: a multicentre analysis.

Background: Goal-classification of person-centred goals, using Goal Attainment Scaling for leg spasticity treatment. Methods: The study was conducted in two phases: phase I, a retrospective review to evaluate categories of goal set in routine clinical practice. Findings were used to design a goal classification system. Phase II, a multi-centre study to confirm the goal categories. Goals set (n = 270) were analysed from data collected at three centres in the UK (one centre for phase I). Goal categories were mapped onto the domains of the World Health Organisation, International Classification of Functioning Disability and Health. Results: One hundred and twenty seven participants were recruited in two cohorts: phase I: 63; phase II: 64. Goal categories using both cohorts were assigned to two domains, each subdivided into three key goal categories: Domain 1: body structure impairment 121 (44%): (a) pain/discomfort 34 (12%), (b) involuntary movements 20 (7%), and (c) range of movement/contracture prevention 67 (25%). Domain 2: activity function 149 (56%): (a) passive function (ease of caring for the affected limb) n = 89 (33%), (b) active function (transfers) 26 (10%), and (c) active function (mobility) 27 (10%), other n = 7 (3%). Conclusions: Patients individual leg spasticity goals can be grouped into six categories and two domains, which will assist clinicians, patients and cares in setting and evaluating goals in practice. Implications for Rehabilitation Six goal areas used in clinical goal setting for leg spasticity management were identified, under the two domains: (1) body structure impairment: pain, involuntary movements, and range of movement and (2) activities/function: passive function (ease of caring), active function - transfers or standing and active function - mobility. Categorisation of goals is consistent on repeated evaluation and across different clinical services. Using clinical goals for leg spasticity treatment is an effective method to identify treatment priorities.