Department of Physical Therapy, School of Health Professions, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Alyn Children's Hospital and Rehabilitation Center, Jerusalem, Israel.
Alyn Children's Hospital and Rehabilitation Center, Jerusalem, Israel.
Gait Posture. 2020 Oct;82:83-89. doi: 10.1016/j.gaitpost.2020.08.120. Epub 2020 Aug 21.
It has been shown that motor training while listening to constant rhythm, is associated with coupling between movement and rhythm. To gain a better understanding of how rhythm perception may affect gait in children with cerebral palsy (CP) it seems important first to assess rhythm perception (RP) in these children.
To describe and compare RP and step characteristics in children with CP and typically-developing (TD) children, and to assess the impact of RP on step characteristics during different rhythms.
The study included 24 children with CP, Gross Motor Function Classification System (GMFCS) levels I-II, age 7-12 years, who walk without assistive device, and 24 TD children matched for age and gender. RP was assessed by the perceptual beat alignment test (BAT). Gait parameters were recorded using a pressure-sensitive mat - the Gaitrite® system. Each participant walked on the mat at a comfortable walking pace and with the metronome set at 92.5 %, 100 % and 107.5 % of his preferred walking rhythm.
No significant difference in RP was noted between groups. Children with CP presented significantly larger step time and length variability. In TD children, those with better RP walked significantly slower, with lower step variability as compared to TD children with lower RP. Children in both groups, regardless of rhythm perception, successfully matched their cadence to the metronome's pace, both at the lower and higher rhythm, except TD children with lower rhythm perception, who failed to reduce their cadence sufficiently in the 92.5 % pace. Children with better RP in both groups changed more parameters in gait in response to rhythm changes.
Assessing RP may predict which parameters of gait are expected to change when employing a metronome during child's walk.
已证明，在聆听恒速节奏的同时进行运动训练与运动和节奏之间的耦合有关。为了更好地了解节奏感知如何影响脑瘫（CP）儿童的步态，似乎首先评估这些儿童的节奏感知（RP）很重要。
描述和比较 CP 儿童和典型发育（TD）儿童的 RP 和步幅特征，并评估 RP 对不同节奏下步幅特征的影响。
该研究包括 24 名 GMFCS 水平 I-II 的 CP 儿童，年龄为 7-12 岁，他们在没有辅助设备的情况下行走，以及 24 名年龄和性别匹配的 TD 儿童。RP 通过感知节拍对齐测试（BAT）进行评估。使用压力敏感垫 - Gaitrite®系统记录步态参数。每个参与者在垫子上以舒适的步行速度行走，并将节拍器设置为其首选步行节奏的 92.5%、100%和 107.5%。
两组之间的 RP 无显著差异。CP 儿童的步幅时间和长度变异性明显更大。在 TD 儿童中，那些 RP 更好的儿童走得明显更慢，与 RP 较低的 TD 儿童相比，步幅变异性更低。两组儿童，无论 RP 如何，都成功地使他们的步频与节拍器的节奏相匹配，无论是在较低还是较高的节奏下，除了 RP 较低的 TD 儿童，他们在 92.5%的节奏下未能充分降低步频。两组中 RP 更好的儿童在响应节奏变化时改变了更多的步态参数。
评估 RP 可能预测在儿童行走时使用节拍器时预计哪些步态参数会发生变化。
