Nichola C Wilson1, Nada Signal2, Yanto Naude2, Denise Taylor2, Ngaire S Stott3. 1. Department of Surgery, The University of Auckland, Auckland, New Zealand; Paediatric Orthopaedic Department, Starship Children's Hospital, Auckland, New Zealand. Electronic address: n.wilson@auckland.ac.nz. 2. Health and Rehabilitation Research Institute, Auckland University of Technology, Auckland, New Zealand. 3. Department of Surgery, The University of Auckland, Auckland, New Zealand; Paediatric Orthopaedic Department, Starship Children's Hospital, Auckland, New Zealand.
Abstract
OBJECTIVES: To examine the association between the Gait Deviation Index (GDI), a multivariate measure of overall gait impairment, and measures of both community walking performance and walking capacity within the clinic setting in ambulatory children with cerebral palsy. DESIGN: Cross-sectional study. SETTING: Gait analysis, 6-minute walk test (6MWT), and self-selected walking speed (WS) were conducted in laboratory and clinic settings. Activity monitoring was done in participants' community environment. PARTICIPANTS: Children with cerebral palsy (N=55; age range, 6-18y) with Gross Motor Function Classification System levels I to III. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The GDI was derived from gait analysis data as a measure of overall gait impairment; an activity monitor was used to capture community walking performance, and the 6MWT and WS were the clinic-based measures of walking capacity. RESULTS: Fifty-five children had a median GDI of 78.86 (range, 53.07-105.34). A moderate association was found between the GDI and daily step count (Spearman ρ=.58; 95% confidence interval [CI], .37-.74; P<.0001). Weaker associations were found between the GDI and 6MWT (Spearman ρ=.4718; 95% CI, .2283-.6597; P<.0003) and between the GDI and WS (Spearman ρ=.3949; 95% CI, .1368-.6028; P<.0028). CONCLUSIONS: The GDI has a moderate association with daily step count, which suggests that interventions that positively change gait kinematics may also affect community walking performance. Although the GDI's deviation from the normal value provides valuable information, other measures are required to provide a complete picture of a child's walking capacity and performance.
OBJECTIVES: To examine the association between the Gait Deviation Index (GDI), a multivariate measure of overall gait impairment, and measures of both community walking performance and walking capacity within the clinic setting in ambulatory children with cerebral palsy. DESIGN: Cross-sectional study. SETTING: Gait analysis, 6-minute walk test (6MWT), and self-selected walking speed (WS) were conducted in laboratory and clinic settings. Activity monitoring was done in participants' community environment. PARTICIPANTS: Children with cerebral palsy (N=55; age range, 6-18y) with Gross Motor Function Classification System levels I to III. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The GDI was derived from gait analysis data as a measure of overall gait impairment; an activity monitor was used to capture community walking performance, and the 6MWT and WS were the clinic-based measures of walking capacity. RESULTS: Fifty-five children had a median GDI of 78.86 (range, 53.07-105.34). A moderate association was found between the GDI and daily step count (Spearman ρ=.58; 95% confidence interval [CI], .37-.74; P<.0001). Weaker associations were found between the GDI and 6MWT (Spearman ρ=.4718; 95% CI, .2283-.6597; P<.0003) and between the GDI and WS (Spearman ρ=.3949; 95% CI, .1368-.6028; P<.0028). CONCLUSIONS: The GDI has a moderate association with daily step count, which suggests that interventions that positively change gait kinematics may also affect community walking performance. Although the GDI's deviation from the normal value provides valuable information, other measures are required to provide a complete picture of a child's walking capacity and performance.
Authors: Isabel Sinovas-Alonso; Diana Herrera-Valenzuela; Roberto Cano-de-la-Cuerda; Ana de Los Reyes-Guzmán; Antonio J Del-Ama; Ángel Gil-Agudo Journal: Front Hum Neurosci Date: 2022-04-04 Impact factor: 3.473
Authors: Diana Herrera-Valenzuela; Isabel Sinovas-Alonso; Juan C Moreno; Ángel Gil-Agudo; Antonio J Del-Ama Journal: Front Bioeng Biotechnol Date: 2022-07-06