Developmental medicine and child neurology · 2025
Six-minute walk test reference values in ambulatory children with myelomeningocele.
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Zapata Karina A, Cooksey Rosa H, Fulton Daralyn K, Shelton Hayley B, Jo Chan-Hee, Adams Richard C
Аннотация
AIM: To determine the baseline pediatric reference values of the 6-minute walk test (6MWT) distance (6MWD) across spina bifida functional lesion levels, the associations between the 6MWD and the distances of the 1-minute and 2-minute walk tests, and assess the impact of social determinants on the 6MWD.
METHOD: This prospective cohort study collected the 6MWD of 145 ambulatory children (72 male, 73 female; mean age = 11 years 2 months [range: 6 years 0 months-17 years 11 months]) with mid-lumbar-level (n = 59), low-lumbar-level (n = 28), and sacral-level (n = 58) myelomeningocele at a pediatric hospital. Proxies of social determinants included insurance type and Area Deprivation Index (ADI). Pairwise comparisons evaluated the 6MWD according to lesion level and myelomeningocele functional classification (MMFC) group.
RESULTS: The mean 6MWD was shorter for myelomeningocele at the mid-lumbar versus low-lumbar versus sacral lesion levels (p < 0.001), and MMFC2 versus MMFC3 versus MMFC4 (p < 0.001). The mean 1-minute and 2-minute walking distances were strongly associated with the 6MWD. Children with public insurance and a high ADI walked significantly fewer meters than children with private insurance (p = 0.023) and a low ADI (p = 0.048).
INTERPRETATION: Children with higher anatomical functional lesion levels walked shorter distances than those with lower levels and according to MMFC group. The 1-minute and 2-minute walk tests are adequate substitutes for the 6MWT. Lower socioeconomic status affecting decreased walking capacity merits interventions to maximize opportunities for activity.
METHOD: This prospective cohort study collected the 6MWD of 145 ambulatory children (72 male, 73 female; mean age = 11 years 2 months [range: 6 years 0 months-17 years 11 months]) with mid-lumbar-level (n = 59), low-lumbar-level (n = 28), and sacral-level (n = 58) myelomeningocele at a pediatric hospital. Proxies of social determinants included insurance type and Area Deprivation Index (ADI). Pairwise comparisons evaluated the 6MWD according to lesion level and myelomeningocele functional classification (MMFC) group.
RESULTS: The mean 6MWD was shorter for myelomeningocele at the mid-lumbar versus low-lumbar versus sacral lesion levels (p < 0.001), and MMFC2 versus MMFC3 versus MMFC4 (p < 0.001). The mean 1-minute and 2-minute walking distances were strongly associated with the 6MWD. Children with public insurance and a high ADI walked significantly fewer meters than children with private insurance (p = 0.023) and a low ADI (p = 0.048).
INTERPRETATION: Children with higher anatomical functional lesion levels walked shorter distances than those with lower levels and according to MMFC group. The 1-minute and 2-minute walk tests are adequate substitutes for the 6MWT. Lower socioeconomic status affecting decreased walking capacity merits interventions to maximize opportunities for activity.