Energy cost during walking in association with age and body height in children and young adults with cerebral palsy
Energy cost during walking in association with age and body height in children and young adults with cerebral palsy
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DOI：
10.1016/j.gaitpost.2017.02.026
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发表时间：
2017-05-01
期刊：
影响因子：
2.4
通讯作者：
Dallmeijer, Annet J.
中科院分区：
文献类型：
--
作者：
Bolster, Eline A. M.;Balemans, Astrid C. J.;Dallmeijer, Annet J.
目的：本横断面研究对脑瘫（CP）儿童和年轻成人进行了研究，旨在评估行走过程中总能量消耗（EC）、净EC和净无量纲（NN）EC与年龄和身高的关系，并与正常发育（TD）同龄人进行比较。（平均年龄11岁9个月; GMFCS I，n = 48; II，n = 56; III，n= 24）和63名TD同龄人（平均年龄12岁5个月）。通过测量以舒适速度在地面上行走期间的耗氧量来评估能量成本。评估结果包括总EC和净EC以及NN EC。结果：年龄和身高与各组间的交互作用不显著，表明各组间的毛、净和NN EC与年龄或身高的相关性相似。模型显示，随着年龄的增长，毛、净和NN EC显著下降（分别为-0.201 J kg（-1）m（-1）; -0.073 J kg（-1）m（-1）; -0.007）和体高/cm（分别为-0.057 J kg（-1）m（-1）; -0.021 J kg（-1）m（-1）; -0.002）。解释：尽管与TD参与者相比，CP的总EC值和净EC值较高，但随着4-22岁CP参与者的增长，EC结局预计会出现类似的下降。所有的能源成本结果都显示出随着增长而下降，这表明在评估总EC的变化时需要纠正这种下降，并且在较小程度上，在净和NN EC中响应于治疗或随着时间的推移从自然过程。(C)2017爱思唯尔B. V.保留所有权利。
Aim: This cross-sectional study into children and young adults with cerebral palsy (CP) aimed to assess the association of gross energy cost (EC), net EC and net nondimensional (NN) EC during walking with age and body height, compared to typically developing (TD) peers.Method: Data was collected in 128 participants with CP (mean age 11y9mo; GMFCS I,n = 48; II,n = 56; III, n= 24) and in 63 TD peers (mean age 12y5mo). Energy cost was assessed by measuring the oxygen consumption during over-ground walking at comfortable speed. Outcome measures derived from the assessment included the gross and net EC, and NN EC. Differences between the groups in the association between gross, net and NN EC with age and body height, were investigated with regression analyses and interaction effects (p < 0.05).Results: Interaction effects for age and body height by group were not significant, indicating similar associations for gross, net and NN EC with age or body height among groups. The models showed a significant decline for gross, net and NN EC with increasing age per year (respectively -0.201 J kg(-1) m(-1); -0.073 J kg(-1) m(-1); -0.007) and body height per cm (respectively -0.057 J kg(-1) m(-1); -0.021 J kg(-1) m(-1); -0.002).Interpretation: Despite higher gross and net EC values for CP compared to TD participants, similar declines in EC outcomes can be expected with growth for participants aged 4-22 years with CP. All energy cost outcomes showed a decline with growth, indicating that correcting for this decline is required when evaluating changes in gross EC, and, to a lesser extent, in net and NN EC in response to treatment or from natural course over time. (C) 2017 Elsevier B.V. All rights reserved.