title: Energy consumption in children with myelomeningocele: a comparison between reciprocating gait orthosis and hip-knee-ankle-foot orthosis ambulators.
abstract: This study compared the differences in energy efficiency (energy cost) in children with myelomeningocele ambulating with either reciprocating gait orthoses (RGOs) or hip-knee-ankle-foot orthoses (HKAFOs). There were 15 children who ambulated with RGOs and 11 children braced and ambulating in HKAFOs. Velocity was measured in m/s, energy consumption was measured in mL/kg/min, and energy cost (energy consumption/velocity) was measured in mL/kg/m. Children in HKAFOs had a significantly higher energy consumption rate than children in RGOs. However, children who swing through in a HKAFO have a significantly faster velocity than children who ambulate with the RGO using a reciprocating pattern. The increased energy cost in the RGO group is influenced by their slower velocity, just as the decreased energy cost in the HKAFO group is influenced by their increased velocity. Therefore it appears that children in HKAFOs are more energy efficient than children in RGOs.
authors.affiliation: Department of Clinical Research, Shriners Hospital for Crippled Children, Portland, Oregon 97201, USA.
authors.forename: T J
authors.initials: TJ
authors.lastname: Cuddeford
authors.forename: R P
authors.initials: RP
authors.lastname: Freeling
authors.forename: S S
authors.initials: SS
authors.lastname: Thomas
authors.forename: M D
authors.initials: MD
authors.lastname: Aiona
authors.forename: D
authors.initials: D
authors.lastname: Rex
authors.forename: H
authors.initials: H
authors.lastname: Sirolli
authors.forename: J
authors.initials: J
authors.lastname: Elliott
authors.forename: M
authors.initials: M
authors.lastname: Magnusson
mesh_terms: D000293:Adolescent; D001696:Biomechanical Phenomena; D001944:Breath Tests; D002248:Carbon Monoxide / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D004734:Energy Metabolism; D005684:Gait; D006801:Humans; D008591:Meningomyelocele / Q000378:metabolism* / Q000503:physiopathology / Q000534:rehabilitation; D009989:Orthotic Devices / Q000592:standards*; D010100:Oxygen / Q000032:analysis; D010101:Oxygen Consumption; D013997:Time Factors
chemical_list: D002248:Carbon Monoxide; D010100:Oxygen