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Conceptualization and Development of the Leg Activity Measure (LegA) for Patient and Carer Reported Assessment of Activity in the Paretic Leg
Author(s) -
Ashford Stephen,
Jackson Diana,
Mahaffey Patrick,
Vanderstay Roxana,
TurnerStokes Lynne
Publication year - 2017
Publication title -
physiotherapy research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.509
H-Index - 49
eISSN - 1471-2865
pISSN - 1358-2267
DOI - 10.1002/pri.1660
Subject(s) - delphi method , conceptualization , psychology , delphi , physical therapy , physical medicine and rehabilitation , content validity , inclusion (mineral) , international classification of functioning, disability and health , occupational therapy , psychological intervention , medicine , clinical psychology , psychometrics , psychiatry , social psychology , rehabilitation , artificial intelligence , computer science , operating system , statistics , mathematics
Background and Purpose The purpose of the paper is to develop a patient‐reported outcome measure of active and passive function in the paretic lower limb with associated spasticity. Methods Potential items for inclusion were identified through (1) systematic review and analysis of existing measures and (2) analysis of the primary goals for treatment in a spasticity service. Ethical approval for re‐evaluation of routinely collected data was received. Item reduction was achieved through consultation with a purposively selected group of experienced physiotherapists and occupational therapists ( n = 16) in a two‐round Delphi process. This was followed by a review of Delphi consultation findings by the Project Advisory Group consisting of patients and carers. Results Development of the leg activity measure (LegA) included two rounds of Delphi consultation, which resulted in a high degree of agreement (80% in round 2) between respondents in rounds 1 and 2. From an initial shortlist of 126 items, 29 items were initially identified for inclusion in LegA and subsequently refined to a 24‐item (two sub‐scales) tool consisting of nine passive function and 15 active function items. Discussion The Delphi consultation with clinicians experienced in this area of practice ensured content validity and appropriate reduction of items. In common with previous work in the upper limb, a 5‐point ordinal scaling structure was chosen, with ratings based on activity over the preceding 7 days. The LegA is designed to measure passive and active function following focal interventions associated with spasticity in the lower limb. Content and face validity have initially been addressed within the development process. The next phase of development will involve formal evaluation of psychometric properties. Copyright © 2016 John Wiley & Sons, Ltd.