Abstract：
Infants with neuromotor disorders demonstrate delays in sitting skills (decreased capacity) and are less likely to maintain independent sitting during play than their peers with typical development (decreased performance). This study aimed to quantify developmental trajectories of sitting capacity and sitting performance in infants with typical development and infants with significant motor delay and to assess whether the relationship between capacity and performance differs between the groups.
Typically developing infants (n = 35) and infants with significant motor delay (n = 31) were assessed longitudinally over a year following early sitting readiness. The Gross Motor Function Measure (GMFM) Sitting Dimension was used to assess sitting capacity, and a 5-min free play observation was used to assess sitting performance.
Both capacity and performance increased at a faster rate initially, with more deceleration across time, in infants with typical development compared to infants with motor delay. At lower GMFM scores, changes in GMFM sitting were associated with larger changes in independent sitting for infants with typical development, and the association between GMFM sitting and independent sitting varied more across GMFM scores for typically developing infants.
Intervention and assessment for infants with motor delay should target both sitting capacity and sitting performance.
Typically developing infants (n = 35) and infants with significant motor delay (n = 31) were assessed longitudinally over a year following early sitting readiness. The Gross Motor Function Measure (GMFM) Sitting Dimension was used to assess sitting capacity, and a 5-min free play observation was used to assess sitting performance.
Both capacity and performance increased at a faster rate initially, with more deceleration across time, in infants with typical development compared to infants with motor delay. At lower GMFM scores, changes in GMFM sitting were associated with larger changes in independent sitting for infants with typical development, and the association between GMFM sitting and independent sitting varied more across GMFM scores for typically developing infants.
Intervention and assessment for infants with motor delay should target both sitting capacity and sitting performance.
摘要：
■患有神经运动障碍的婴儿表现出坐姿技能的延迟（能力下降），并且与具有典型发育（表现下降）的同龄人相比，在比赛中保持独立坐姿的可能性较小。这项研究旨在量化典型发育婴儿和明显运动延迟婴儿的坐姿能力和坐姿表现的发育轨迹，并评估两组之间的能力和表现之间的关系是否不同。
■通常发育中的婴儿（n=35）和具有明显运动延迟的婴儿（n=31）在早期坐好准备后的一年内进行纵向评估。粗大运动功能测量(GMFM)坐姿维度用于评估坐姿能力，并使用5分钟的自由玩耍观察来评估坐姿表现。
■容量和性能最初都以更快的速度增长，随着时间的推移，在具有典型发育的婴儿中，与具有运动延迟的婴儿相比。在较低的GMFM分数下，GMFM坐姿的变化与典型发育婴儿独立坐姿的较大变化相关，GMFM坐姿和独立坐姿之间的关联在一般发育婴儿的GMFM评分中差异更大。
■对运动延迟婴儿的干预和评估应同时针对坐姿和坐姿。
■通常发育中的婴儿（n=35）和具有明显运动延迟的婴儿（n=31）在早期坐好准备后的一年内进行纵向评估。粗大运动功能测量(GMFM)坐姿维度用于评估坐姿能力，并使用5分钟的自由玩耍观察来评估坐姿表现。
■容量和性能最初都以更快的速度增长，随着时间的推移，在具有典型发育的婴儿中，与具有运动延迟的婴儿相比。在较低的GMFM分数下，GMFM坐姿的变化与典型发育婴儿独立坐姿的较大变化相关，GMFM坐姿和独立坐姿之间的关联在一般发育婴儿的GMFM评分中差异更大。
■对运动延迟婴儿的干预和评估应同时针对坐姿和坐姿。
