Faculty of Human Movement Sciences, Vrije University, The Netherlands.
Infant Behav Dev. 2010 Feb;33(1):16-22. doi: 10.1016/j.infbeh.2009.10.002. Epub 2009 Dec 2.
Examining the effects of diapers and other external constraints on infants' leg movements may affect how we collect motor control research data, dress infants to allow optimal movement in the home, and administer therapeutic interventions for infants with motor impairments. To address this issue we supported 12 healthy infants (2-4 months) on an infant-sized treadmill in each of four conditions: wearing nothing (None), a swim diaper (Swim), a disposable diaper (Diaper), or a combination of diaper and research recording equipment (All). We recorded the trials with a digital video camera and behavior coded number of steps and step type (alternating, parallel, double, or single steps) to assess both quantity and quality of movements. Infants produced similar numbers of steps in a predominantly alternating step pattern (high quality) during the None, Swim and Diaper conditions, but both quantity and quality of stepping decreased in the All condition. Our results suggest that diapers alone do not alter stepping patterns significantly, but sufficient additional weight and clothing beyond the diaper can affect movement frequency and quality in young infants.
检查尿布和其他外部约束对婴儿腿部运动的影响，可能会影响我们如何收集运动控制研究数据，为婴儿在家中提供最佳运动的穿着，以及为运动障碍的婴儿进行治疗干预。为了解决这个问题，我们在婴儿大小的跑步机上支持了 12 名健康婴儿（2-4 个月），在四种情况下进行：不穿任何东西（无）、穿游泳尿布（游泳）、穿一次性尿布（尿布）或尿布和研究记录设备的组合（全部）。我们使用数字摄像机记录试验，并对步骤数量和步骤类型（交替、平行、双步或单步）进行行为编码，以评估运动的数量和质量。在无、游泳和尿布条件下，婴儿以主要的交替步模式（高质量）产生相似数量的步，但在全部条件下，步幅的数量和质量都有所下降。我们的结果表明，单独的尿布不会显著改变步幅模式，但尿布以外的足够的额外重量和衣物会影响幼儿的运动频率和质量。
