Duran I, Martakis K, Stark C, Alberg E, Bossier C, Semler O, Schoenau E
University of Cologne, Center of Prevention and Rehabilitation, Germany.
J Musculoskelet Neuronal Interact. 2017 Sep 1;17(3):237-245.
Jumping mechanography provides robust motor function indicators among healthy children. The aim of the study was to assess the reproducibility and validity of jumping mechanography conducted as single two-legged jump (S2LJ) in children with cerebral palsy (CP).
215 S2LJ investigations from a sample of 75 children with CP were eligible for evaluation. For the estimation of the reproducibility, only the baseline set of data per patient were used. Gross motor function was evaluated by the Gross Motor Function Measure (GMFM-66). In 135 S2LJ investigations, GMFM-66 was assessed within a week in the same child. This data was used for validity assessment.
Coefficients of variation for the main outcome parameters ranged between 6.15-9.71%, except for jump height (CV%=27.3%). The intraclass correlation coefficients for peak velocity (V) and peak power relative to body weight (P/mass) was 0.927 and 0.931. V and P/mass were also the test parameters with the strongest correlation to the GMFM-66 score (⟩0.7).
S2LJ assessed in the present study provided reproducible outcome measures particularly for Vmax and Pmax/mass in children with CP. Further, V and P/mass showed the strongest correlation with the GMFM-66 score and seem to be the most relevant evaluation criteria.
跳跃力学描记法可提供健康儿童强健的运动功能指标。本研究旨在评估在脑瘫（CP）儿童中进行的单双腿跳（S2LJ）跳跃力学描记法的可重复性和有效性。
对75名CP儿童样本中的215次S2LJ检查进行评估。为评估可重复性，仅使用每位患者的基线数据集。采用粗大运动功能测量量表（GMFM - 66）评估粗大运动功能。在135次S2LJ检查中，对同一儿童在一周内进行GMFM - 66评估。该数据用于有效性评估。
除跳跃高度（CV% = 27.3%）外，主要结局参数的变异系数在6.15 - 9.71%之间。峰值速度（V）和相对体重的峰值功率（P/质量）的组内相关系数分别为0.927和0.931。V和P/质量也是与GMFM - 66评分相关性最强的测试参数（>0.7）。
本研究中评估的S2LJ提供了可重复的结局指标，尤其是CP儿童的最大速度（Vmax）和最大质量功率（Pmax/质量）。此外，V和P/质量与GMFM - 66评分的相关性最强，似乎是最相关的评估标准。
